bluuebunny/crossref_metadata_2025 huggingface dataset:
Skin Necrosis after Total Knee Arthroplasty Treated with Eschar Preservation and Prophylactic Antibiotic Measures: A Case Report
Authors:   Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky College of Medicine, 740 S. Limestone, Suite K401 Lexington, KY 40536-0284,, Ulrich Gary L , Belmar Carlos J ,   Department of Orthopaedic Surgery, Union Health Bone and Joint Center, 1725 N. 5th St., Terre Haute, IN 47804.
Published: September 2024

Introduction: Skin necrosis following total knee arthroplasty (TKA) represents a rare, but serious complication that can lead to deep infection. In the setting of a lateral release performed during TKA, the incised retinaculum unveils a potential pathway to the joint should the superficial skin and tissue be compromised. Thus, the conventional treatment of debridement in this setting may risk infection to the joint, whereas eschar preservation may serve as a biological protective barrier to prevent infection. Case Report: We present a patient with end-stage tricompartmental knee osteoarthritis who underwent a TKA with a concomitant lateral release. The patient developed necrosis in two distinct areas measuring 14 cm × 2 cm along the length of the primary TKA incision, and 7 cm × 4 cm laterally. The patient was treated with eschar preservation, oral doxycycline, an antimicrobial silver dressing, and allowed to heal by secondary intention. The patient’s skin necrosis healed fully at 12-week post-operatively, and they have had a successful TKA outcome at 5 years. Conclusion: Eschar preservation, oral doxycycline, an antimicrobial silver dressing, and allowing the wound to heal by secondary intention may represent a viable, less invasive treatment for skin necrosis following TKA with lateral release. Keywords: Skin necrosis, wound complication, eschar preservation, total knee arthroplasty.
Management of Neglected Locked Anterior Shoulder Dislocation in the Elderly Population in an Indian Scenario – A Case Report
Authors:   Department of Orthopaedics, Dr. D Y Patil Medical College and Hospital, Mumbai, Maharashtra, India., Deore Sandeep , Patil Bhushan ,   Department of Orthopaedics, Dr. D Y Patil Medical College and Hospital, Mumbai, Maharashtra, India., Kale Sachin ,   Department of Orthopaedics, Dr. D Y Patil Medical College and Hospital, Mumbai, Maharashtra, India., Mishra Ronak ,   Department of Orthopaedics, Dr. D Y Patil Medical College and Hospital, Mumbai, Maharashtra, India., Modi Ravi ,   Department of Orthopaedics, Dr. D Y Patil Medical College and Hospital, Mumbai, Maharashtra, India., Mehta Nrupam ,   Department of Orthopaedics, Dr. D Y Patil Medical College and Hospital, Mumbai, Maharashtra, India.
Published: September 2024

Introduction: There is a paucity of literature regarding a neglected shoulder dislocation, as it is unusual to miss it clinically due to the apparent deformity. Nevertheless, in some cases, particularly those who receive primary treatment from a local bonesetter, they present with neglected dislocation. In the absence of comprehensive studies, health-care professionals have to resort to lower-tier evidence and practical experience to guide their treatment decisions. Therefore, most of the treatment recommendations are based on level four studies and the literature for recurrent dislocation of the shoulder. Case Report: We have described three cases of neglected anterior dislocation of the shoulders in two patients, which were managed by open reduction and Latarjet procedure, remplissage, and rotator cuff repair (RCR). Both of our patients after 1-year follow-up had a painless joint with an improved functional range of motion. This case discussion contributes to understanding the approach to treating these patients. Conclusion: Recurrent shoulder joint instability with bone loss in the younger and older age groups has to be managed differently. Based on this case report involving individuals older than 50 years, it can be inferred that the approach to managing neglected locked shoulder dislocations with off-track lesions is with open reduction and fixation with Latarjet procedure, coupled with RCR and remplissage, has yielded adequate joint stability and favorable post-operative outcomes. Keywords: Locked shoulder dislocation, Latarjet procedure, neglected shoulder dislocation, remplissage.
Assessing changes in the mangrove ecosystem land area of Tanakeke Island, Takalar Regency, using Landsat 8 imagery
Authors: Rosalina Dwi , Rombe Katarina Hesty , Arafat Yasser , Jamil Khairul , Hawati Hawati , Sabilah Anisa Aulia , Warni Warni , Leilani Ani , Ruzuqi Rezza , Sari Suci Puspita , Utami Eva
Published: September 2024

Rewataya Village is situated on Tanakeke Island, within the Takalar Regency. Despite its significance, previous studies have not addressed the mapping of changes in mangrove land area within this locale. The present research aimed to fill this gap by assessing alterations in mangrove land area from 2013 to 2023, alongside examining density and canopy cover conditions. The method employed for mapping changes in land area entailed utilizing the unsupervised method with maximum likelihood classification. Additionally, the assessment of mangrove conditions involved employing plot line transects to determine species density and hemispherical photography methods to evaluate canopy cover. Notably, two types of mangroves, namely Rhizophora mucronata and Rhizophora apiculata, are prevalent in this village. The mangrove species density in Rewataya Village, Tanakeke Island, is categorized as “good.” In addition, the canopy cover in Rewataya Village falls within the classification of “very dense” according to mangrove damage criteria. However, there has been a notable reduction in the mangrove ecosystem area between 2013 and 2023, with a decrease of 42.28 hectares (from 367.13 hectares to 324.84 hectares).Keywords:  MangroveLandsat 8Rewataya villageUnsupervised
Mapping the distribution of potential octopus (Octopus sp.) fishing ground in the waters of Simeulue regency
Authors: Arif Muhammad , Fuadi Afdhal , Oktavinanda Giovanni
Published: September 2024

Simeulue Regency has the potential for diverse and abundant marine resources; one of which is octopus (Octopus sp.). However, the problem faced by Simeulue fishermen in carrying out octopus fishing activities is that they only rely on natural phenomena or natural signs studied from generation to generation (traditional) to catch octopus. Therefore, the catch obtained is uncertain and takes a long time. The purpose of this study was to determine the number and weight of octopus catches landed in three sub-districts namely Teupah Barat, Teupah Selatan and Alafan, and then make a map of distribution of potential octopus fishing groud in the three sub-districts. The research method used in this study was a survey method by observing octopus catching units. The results showed that the total number and total weight of octopus catches in three sub-districts from the highest to the lowest were Teupah Barat, amounting to 176 heads and weighing 90,47 kg; Teupah Selatan amounting to 115 heads and weighing to 69,54 kg; and Alafan amounting to 114 heads and weighing to 46,97 kg, where the octopuses caught were all adult categories and fit to be caught. As for the potential areas for octopus fishing in the three sub-districts were as follows: Teupah Barat with 3 potential areas (points E, F and A); Teupah Selatan with 2 potential areas (points E and F); Alafan with only 1 potential point (point K).Keywords:MappingFishing groundOctopusSimeulue
Effects of dietary supplementation with 17β-estradiol on the Steroid Hormone Levels, Gonadosomatic Index, and Gonadal Histology of Female Silver Pompano (Trachinotus blochii) Broodstock
Authors: Azizah Azizah , Sarida Munti , Adiputra Yudha Trinoegraha , Susanto Gregorius Nugroho , Setyawan Agus
Published: September 2024

Silver pompano (Trachinotus blochii) is a mariculture commodity with fast growth characteristics and easy adaptation to the environment. However, the production of its seeds is hindered by the maturation of the parent's gonads out-side the spawning season. Hormonal approaches are needed for the maturation of the parent's gonads. The aim of this study is to investigate the level of steroid hormones, gonadosomatic index, and gonad histology in female silver pompano (Trachinotus blochii) broodstock after dietary supplementation with 17β-estradiol. This research is crucial for the advancement of effective and efficient techniques for rearing this fish. The study used a completely randomized design (CRD) consisting of three different 17β‒estradiol concentrations (0 mg/kg (E1), 30 mg/kg (E2), and 60 mg/kg (E3) fed to female silver pompano broodstock for 30 days, beginning at initial feeding, each with eight individual replicates. Absolute body weight growth, steroid hormone levels, gonadal maturation index, gonadal histology, fecundity, and egg diameter of female silver pompano broodstock were all examined in this study. The incorporation of 17β-estradiol hormone into the sustenance amplifies the reproductive capabilities of the female silver pompano broodstock. The inclusion of 17β-estradiol hormone in the diet renders the most elevated values regarding fecundity and egg diameter in the female silver pompano broodstock. Histological examinations expose that the development of the gonads in the female broodstock treated with 17β-estradiol hormone progresses towards maturation. The inclusion of 17β- estradiol hormone in the diet at doses of 20 and 60 mg/kg feed yields the highest values in terms of fecundity and egg diameter in female silver pompano broodstock.Keywords:17β-estradiolGonadal histologyGonadosomatic indexSteroid hormoneSilver pompano
Effectiveness of multiherbal leaf extract for the treatment of Oreochromis niloticus infected with pathogens
Authors: Arisa Iko Imelda , Rahmi Ulfa , Nurfadillah Nurfadillah , Afriani Sari , Fatma Julianda
Published: September 2024

The many herbal plants in Indonesia that contain antimicrobial substances such as Calotropis gigantea, Moringa oleifera and Cassia alata L. leaves are attractive and have the potential to be used to prevent and treat bacterial diseases in fish. This study aims to determine the effectiveness of administering a combination of multi-herbal ingredients, namely M. oleivera, C. gigantea and C. alata L. leaves in the treatment of O. niloticus tilapia infected with the pathogenic bacteria S. agalactiae. The experimental design used a completely randomized design with 6 treatment levels and 3 replications, namely treatment A (Fish that were not infected with S. agalactiae), B (Fish infected with S. agalactiae), C (Fish infected with S. agalactiae + soaked in thistle leaf extract 800 ppm+ Moringa leaf extract 1000 ppm)), D (Fish infected with S. agalactiae + soaked in C. gigantea leaf extract 800 ppm + C. allata leaf extract 10 ppm), E (Fish infected with S. agalactiae +soaked in Moringa leaf extract 1000 ppm + C. allata leaf extract 10 ppm) and F (Moringa leaf extract 1000 ppm+C. gigantea leaf extract 800 ppm + C. allata leaf extract 10 ppm). The results showed that the combination of M. oleivera, C. gigantea and C. alata L. extracts had a significant effect (P0.05) on the survival rate ofO. niloticus. Treatment (E), combination of M. oleivera leaf extract 1000 ppm + C. alata L leaf extract 10 ppm, showed the fastest healing of the body and the highest survival rate of tilapia, namely 80%.Keywords:Multi herbal leavesPatoghenImunnity
Study on water quality based on physicochemical parameters and distribution of waste in the waters of Kelapa Dua Island
Authors: Pratiwy Fittrie Meyllianawaty , Herawati Titin , Hasan Zahidah , Andriani Yuli , Faddilah Thallita Nasywa , Nabila Tiara Nurul
Published: September 2024

Kepulauan seribu archipelago is home to Kelapa Dua Island, a potential marine tourism destination and habitat for diverse marine life. The survival of marine biota hinges on suitable physical and chemical water parameters, encompassing temperature, pH, salinity, and dissolved oxygen (DO). This study aims to evaluate water quality and litter distribution on Kelapa Dua Island within Kepualauan Seribu National Park. Results reveal that the water quality largely aligns with established standards; however, specific points surpass limits, notably lower salinity at stasion 3 (26%o), and higher pH at station 2 (9.35). Despite meeting quality standards, the island's status as a populated area and tourist destination raises concerns about potential alterations to water quality. Furthermore, observations on litter distribution indicate a status categorized as B (0-4/m) and C (4-10/m), highlighting a relatively low level of litter presence. The interaction of human activities, both as inhabitants and visitors, may contribute to fluctuations in water quality. Understanding these dynamics is crucial for sustainable management, ensuring the preservation of Pulau Kelapa's ecological integrity as a cherished marine environment and tourist attraction. This study provides insights into the delicate balance between human interactions and environmental preservation in the context of Pulau Kelapa, Kepualauan Seribu.Keywords:Water qualityLitter DistributionKelapa Dua IslandKepulauan Seribu
Utilization of natural stimulants on crab survival and molting acceleration: progresses and challenges
Authors: Akbar Said Ali , Nuzlia Cut , Afriani Sari , Zulfahmi Ilham
Published: September 2024

This study investigates the potential of natural stimulants, specifically ecdysteroids, in accelerating the molting process in mangrove crabs. The research was conducted by analyzing various plants containing ecdysterone and their effects on the crabs. The results indicate that forest fern leaves and mulberry leaves are effective sources of ecdysterone in stimulating molting and growth in crabs. The use of such natural stimulants has the potential to enhance productivity and reduce reliance on synthetic hormones in crab cultivation. However, further research is needed to determine the optimal dosage and to understand the mechanisms of ecdysterone action in crabs in more detail. The main challenge in implementation is adjusting the dosage and frequency of natural stimulant administration to achieve optimal results without disrupting the balance of the cultivation ecosystem. This approach offers an environmentally friendly alternative for the sustainable development of crab farming.
Developing a theory of robust democracy
Authors: Sørensen Eva , Warren Mark E.
Published: September 2024

While many democratic theorists recognise the necessity of reforming liberal democracies to keep pace with social change, they rarely consider what enables such reform. In this conceptual article, we suggest that liberal democracies are politically robust when they are able to continuously adapt and innovate how they operate when doing so is necessary to continue to serve key democratic functions. These functions include securing the empowered inclusion of those affected, collective agenda setting and will formation, and the making of joint decisions. Three current challenges highlight the urgency of adapting and innovating liberal democracies to become more politically robust: an increasingly assertive political culture, the digitalisation of political communication and increasing global interdependencies. A democratic theory of political robustness emphasises the need to strengthen the capacity of liberal democracies to adapt and innovate in response to changes, just as it helps to frame the necessary adaptations and innovations in times such as the present.
The Exemplarity of Marcellus in Punica 14
Authors: Mebane Julia
Published: September 2024

Abstract: At the end of Punica 14, M. Claudius Marcellus transforms from a general famous for his military valor into a founder renowned for his clemency. This paper interprets his transformation in relation to the threat of civil war, which lurks throughout the Sicilian campaign. Earning glory through his commitment to external conquest and internal unity, Marcellus offers a resonant exemplum for a political community beset by fears of provincial unrest. When Silius invites his fellow governors to learn the lessons of the epyllion, he reveals his own awareness that the stability of the empire depends upon the conduct of those who conquer in its name.
The Me in the Poster: Mirrors, Photographs, and “Crip Double Consciousness” in Connie Panzarino’s Memoir
Authors: Rustici Craig
Published: September 2024

Abstract: This essay elaborates the concept “crip double consciousness” to assess how Connie Panzarino’s experience as a poster child impacted her memoir The Me in the Mirror and her career as a disability activist. The memoir presents multiple mirror episodes that mark stages in Panzarino’s narrative of emancipation. It also recounts how Panzarino deploys photographs of herself, another source of reflected images, to press for access and necessary accommodations. Most significantly, an incident at the Muscular Dystrophy Association (MDA) telethon mirrors—that is, reflects with reversals—the moment that gives the memoir its title when a four-year-old Panzarino imagines that her mirror reflection is “another ‘Connie’” free of physical impairments. The conscious doubling of selves Panzarino experiences at the MDA telethon shapes how she reconstructs her earlier, foundational encounter with mirrored selves.
Recovering Memories of Holocaust Displacement and Survival in Contemporary (Auto)biographical Comics: On the Collaborative Volume But I Live
Authors: Mihăilescu Dana
Published: September 2024

Abstract: The comics medium is recognized today as a highly effective way to represent Holocaust experience and memory, and their challenges for new generations, as established in important studies by Hillary Chute, Victoria Aarons, Ole Frahm et al., and Matt Reingold. Continuing in these scholars’ footsteps, I will explore a new direction of Holocaust representation in (auto)biographical graphic narratives over the past few years: that of addressing not just the traumatic aspects of the Holocaust but also the importance of acts of solidarity as resistance during and after World War II in ensuring survival and (self-)care. I will assess this aspect of representation in But I Live , a volume edited by Charlotte Schallié comprising three graphic narratives of child survivors from Romania and the Netherlands, the products of collaboration with well-known graphic artists from North America (Miriam Libicki), Israel (Gilad Seliktar), and Germany (Barbara Yelin).
Francis Place in Glasgow: A Confirmation
Authors: Pierce Helen
Published: September 2024

ABSTRACT: Helen Pierce’s recent publication of an eighteenth-century notebook detailing a corpus of drawings by the English artist Francis Place (1647–1728) expands understanding of the range and scope of his works on paper. More specifically, this material confirms the subject of a Place drawing in The Huntington’s collections as one of the earliest extant views of Glasgow, produced during the artist’s 1701 tour of Scotland. This essay sets out the physical and contextual evidence for this confirmation.
A Crime Unconfined: Reading Philomena's Cortine in Ovide moralisé Manuscript G2 (Arsenal 5069)
Authors: Johnson Joseph
Published: September 2024

Abstract: The tale of Philomena and Procne from the Old French Ovide moralisé (OM), a medieval vernacular adaptation and allegorization of Ovid's Metamorphoses , tells of how a woman's act of creativity permits her to escape confinement at the hands of her rapist brother-in-law. By weaving an embroidered bed-curtain ( cortine ), Philomena communicates the truth of what has transpired to her sister, enabling the two to set to work on their revenge. Believed to have been authored by Chrétien de Troyes in the twelfth century and incorporated into the OM at a later date, this narrative has typically been approached by scholars as a "closed unit"—one that can be examined apart from its broader context within the OM and the manuscript tradition of that work. By examining the version of the tale of Philomena and Procne that appears in OM manuscript G2 (Paris, Bibliothèque nationale de France, MS Arsenal 5069), which is the only medieval manuscript to attempt a visual representation of Philomena's cortine , this article approaches the narrative in a manner that reflects the emphasis on unity and multi-media interconnectivity characteristic of more recent OM scholarship. I argue that the appearance of Philomena's bed-curtain in G2 draws attention to how the codex itself functions as a multi-media signifying object—one that combines text and image in subtle ways to give shape to the un-representable, traumatic core of the heroine's experience.
Staal-Delaunay's Détours to Intimacy: The Emergence of the Autobiographical Writer and Reader from the Bastille
Authors: Stacey Jessica
Published: September 2024

Abstract: Marguerite-Jeanne de Staal-Delaunay described her period of imprisonment in the Bastille as the only happy time of her life, and prison itself as the place where one might be most free. Her memoir, which contemporaries expected to disclose the political secrets of the duchesse du Maine whom Delaunay served, offered instead an account of how she came to have so unusual an experience of happiness and unhappiness. This article follows Delaunay through her life narrative, over the course of which she argues that French high society of the early eighteenth century was itself a prison, from which the Bastille offered respite. The article asks how Staal-Delaunay established the authority to make such an argument, and why a text which explicitly disappointed the readerly expectations emerged as that argument's most effective vehicle. Contrasting her work to other prison narratives and to Rousseau's Confessions , this article shows that the memoir was at once a case against society and a call to a future reader, able to grasp the truth of the author's apparently back-to-front point of view. Writing replaced the failure of truthful communication in Delaunay's life. Yet, in contrast to Rousseau's fantasy of transparency and directness, Delaunay understands the truth of her experience to be communicable only through détours: omissions, veilings, and shifts of emphasis.
Aux confins de l'animalité, au-delà des tabous : Entretien avec Audrée Wilhelmy
Authors: Ung Kaliane
Published: September 2024

Abstract: Après une courte présentation de l'oeuvre d'Audrée Wilhelmy, nous conduisons un entretien avec l'autrice francophone canadienne autour de son rapport au corps, à la langue, et à la création. Au fil de ses publications et de ses interventions multimédia, l'artiste tisse un rapport particulier à la notion de contrainte, prise au sens large, et s'impose comme une des voix les plus inventives de la nouvelle génération d'auteurs québécois. Depuis les contraintes littéraires de la réécriture du conte Barbe Bleue dans Les sangs (2013), ou encore en parcourant la frontière du corps féminin et de l'animalité dans Le corps des bêtes (2017), les personnages d'Audrée Wilhelmy s'inscrivent dans une nature sauvage qui participe activement à leur devenir-femme. Son troisième roman Blanc résine (2019) est une ode à la puissance féminine et au savoir des premières nations, incarnés par Daã. Dans le rapport littéraire à la contrainte, nous discutons du rapport entre l'innocence des formes littéraires et des normes morales. Audrée Wilhelmy travaille l'anormalité conjuguée à l'amoralité, lorsque les existences animales « nues » mettent à nu les habitudes sociales. L'autrice s'attache à l'écriture du tabou que ce soit dans l'exploration du mal, du fantasme ( Les sangs ), de l'interdit ( Le corps des bêtes ) et du renoncement ( Blanc résine ).
High-Accuracy Simultaneous Measurement of Spectrum and Full-Stokes Polarization Based on Speckle Pattern
Authors: Zhou Qianyu , Wan Yangyang , Fan Xinyu , Zuyuan He
Published: September 2024

The computational spectropolarimeter is demonstrated for the first time using speckle patterns obtained from a multi-mode fiber, with 100-pm spectral resolution, 30-nm bandwidth and a polarization measurement error of 5.3 × 10
−
5.
Snapshot Multi Angle Mueller matrix metrology using multiple self-interference
Authors: Choi Garam , Kim Jinyong , Kim Jinseob , Jin Young-Uk , Hwang Soonhong , Lee Eunjoo , Ha Jaemin , Kim Wookrae , Lee Myungjun
Published: September 2024

We proposed the massive acquisition of full Mueller matrix across an entire range of angles, offering fully comprehensive structural. Our method could be a novel solution to recent metrological challenges limitations in advanced semiconductor metrology.
An Acetylene-based Optical Clock with < 3 × 10 − 13 / τ Fractional Frequency Instability
Authors: Droste Stefan , Attar Andrew , Timmers Henry , Phillips Nate , Smith Cole , Hald Jan , Kjaer Michael , Sodergren Bennett , Vogel Kurt , Knabe Kevin
Published: September 2024

We demonstrate an acetylene-based optical clock that achieves
<3×10−13/τ fractional frequency instability and a flicker floor below 10-14 after 1,000 s. The clock is made entirely from commercially available components, offering a simple setup and environmental robustness. © 2024 Vescent Technologies and DFM.
Low Size, Weight, and Power Frequency Comb Modules for Deployed Optical Clocks and Quantum Applications
Authors: Timmers Henry , Attar Andrew , Sodergren Bennett , Fassler Star , Smith Cole , Barnes Evan , Spiess Alina , Droste Stefan , Vogel Kurt , Knabe Kevin
Published: September 2024

Performance levels, increased levels of system integration, and examples of fielded demonstrations of low size, weight, and power optical frequency combs will be discussed for potential next-generation optical clocks and quantum applications.
Enhancing Underwater Imaging for Robot through Embedded Polarization Neural Network
Authors: Ma Yuanzheng , Pan Shu , Marsh Peter , Guan Xun
Published: September 2024

Transforming underwater imaging, our integrated neural network and polarization camera enhance PSNR by 40.61%, enabling the robot to effectively discern weak signals in highly scattering environments and facilitating swift imaging and detection.
Room-Temperature Fourier Transform Spectrometer Covering the Spectral Range from 2 to 30 µm and Beyond
Authors: Mnich Jakub , Suster Mihai , Szymańska Aleksandra , Kunsch Johannes , Budden Matthias , Gebert Thomas , Schossig Marco , Sotor Jarosław , Sterczewski Łukasz A.
Published: September 2024

Using a lithium tantalate (LiTaO3) pyroelectric detector and a thermal incoherent source we demonstrate broadband room-temperature Fourier transform spectrometry from the near-infrared to THz range without changing optics. Atmospheric species are measured with GHz resolution.
Metasurface Microspectrometer with Mid Infrared Free-Standing Guided Mode Resonance Bandpass Filters
Authors: Meng Jiajun , Balendhran Sivacarendran , Crozier Kenneth B.
Published: September 2024

A mid-infrared metasurface microspectrometer featuring free-standing guided mode resonance bandpass filters is presented. We combine it with a thermal emitter infrared source and show that it functions as a material classifier.
One-dimensional Seedless Velocimetry in a N2-enriched Subsonic Flow using Femtosecond Electronics Excitation Tagging
Authors: Park Youchan , Kim Kyeongsun , Rhee Hyunseung , Shin Wonjik , Do Hyungrok
Published: September 2024

Spatially elongated femtosecond laser-induced plasma electronically excites nitrogen molecules generating visible range fluorescence. The fluorescence temporally traces the displacement of the nitrogen molecules enabling one-dimensional velocimetry aided by decomposition-based denoising and center-detecting algorithm.
Monolithically Integrated Germanium Photodiodes with Low Dark Current and High Detectivity
Authors: Prakasam Vittal , Saseendran Sandeep Seema , Humbert Aurélie , Monroy Isabel Pintor , Berghmans Francois , Baines Yannick , Qiu Huaqing , Karve Gauri , Soussan Philippe
Published: September 2024

Germanium photodiodes integrated via selective epitaxial growth typically have low detectivity. We demonstrate process approaches that are needed to minimize defectivity in germanium, thereby paving way towards photodiodes with low dark current and high detectivity.
Hybrid germanium-on-zinc selenide waveguides for longwave infrared integrated photonics
Authors: Dong Chao , Ren Dingding , Høvik Jens , Khan Md Istiak , Aksnes Astrid , Fimland Bjørn-Ove , Burghoff David
Published: September 2024

We demonstrate a silicon-free germanium-on-zinc selenide (GOZ) platform for integrated longwave infrared photonics, achieving transparency from 2 µm to 14 µm and optical losses of just 1 cm−1 (at 7.8 µm).
Optical Fiber Loss Distribution Measurement by Using Phase-sensitive OTDR
Authors: Zhang Hailiang , Dong Hui , Hu Dora Juan Juan
Published: September 2024

We propose and experimentally demonstrate fiber loss distribution measurement by using intensity-based phase-sensitive optical time domain reflectometer (PS-OTDR). There is no requirement to modify any hardware in the existing PS-OTDR interrogator.
Nano-structuring of Glass Using Femtosecond Lasers
Authors: Chen Gong , Qiao Jie
Published: September 2024

We demonstrate nano-structuring of glass using femtosecond-laser beam figuring. We established a method for creating and eliminating periodic nanostructures. The method provides a path for using a femtosecond laser to reduce detrimental mid-spatial-frequency errors.
Nitrogen-vacancy center generation in diamond by fs-laser irradiation at different conditions
Authors: Nolasco L.K. , Pratavieira S. , Mendonça C. R.
Published: September 2024

A study of the fs-laser-induced generation of nitrogen-vacancy centers in CVD diamond was performed at distinct fluences, pulse durations, and wavelengths to identify the optimal conditions for its creation, with implications for developing novel quantum technologies.
Silicon Micro-Ring Weight Stabilization with Nonlinear Self-Heating
Authors: Lederman Joshua C. , Bilodeau Simon , Doris Eli A. , Blow Eric C. , Shastri Bhavin J. , Prucnal Paul R.
Published: September 2024

Micro-ring resonators can tunably weight wavelength-division-multiplexed signals, but they face high sensitivity to temperature. In this work, we take advantage of micro-ring self-heating to experimentally stabilize a silicon micro-ring weight, nearly halving its thermal sensitivity.
Multi-Event Detection in Polarization-OTDR Based on Principal Depolarization Factors
Authors: Dong Hui , Zhang Hailiang , Hu Dora Juan Juan
Published: September 2024

Principal depolarization factors (PDF) are demonstrated to be the local polarization parameters in single-mode fibers. Based on measurements of PDFs, polarization-OTDR with wider optical pulses has demonstrated multi-event detection for the first time.
On the correlation between femtosecond laser-induced defects taxonomy and localized accelerated chemical etching in fused silica
Authors: Parmar Vinod , Ollier Nadège , Bellouard Yves
Published: September 2024

The non-ablative interaction of femtosecond laser pulses with fused silica leads to defects creation in the silica glass network. Here, we report on the correlation between defects and localized accelerated etching, that enables three-dimensional manufacturing process.
Sub-MHz linewidth, FMCW photonic integrated blue laser
Authors: Siddharth Anat , Wunderer Thomas , Ji Xinru , Bhave Sunil A. , Kippenberg Tobias J.
Published: September 2024

We demonstrate for the first time a frequency-modulated continuous wave photonic integrated blue laser with sub-MHz linewidth. The laser exhibits frequency excursion greater than 900 MHz at up to 1 MHz triangular chirp rate with a nonlinearity of less than 1.5%.
Compact Coherent Photonic Crystal Surface-Emitting Laser Arrays
Authors: Gautam Chhabindra , Pan Mingsen , Chen Yudong , Rotter Thomas J. , Balakrishnan Ganesh , Zhou Weidong
Published: September 2024

We report a novel coherent beam combining design with passively coupled PCSEL array. Experimental results of our fabricated GaAs-based arrays show high beam quality, linewidth, and coherency.
Amplitude-Invariant Phase Shifter Based on Carrier-Injection Mechanism for Optical Phased Array
Authors: Yuan Qiqi , Xu Weihan , Ran Shihuan , Yang Yunhong , Lu Liangjun , Chen Jianping , Zhou Linjie
Published: September 2024

We present an amplitude-invariant phase shifter based on a PIN diode embedded in a Mach-Zehnder Interferometer for optical phased arrays. The dynamic power contrast is lower than 0.42 dB over a π phase shift.
Nanoscale analytics with AFM probe-assisted techniques
Authors: Danilov Artem , Gokus Tobias , Huber Andreas J.
Published: September 2024

Scattering-type Scanning Near-field Optical Microscopy (s-SNOM), nano-FTIR spectroscopy, as well as photothermal expansion-based techniques are scanning probe approaches to achieve nanoscale spatial resolution in the infrared spectral range, bypassing the ubiquitous diffraction limit of light [1,2]. These techniques employ the strong confinement of light at the apex of a sharp metallic atomic force microscopy (AFM) tip to create a nanoscale optical hot-spot. Analyzing the scattered light from the tip, or the deflection of the cantilever upon local photothermal expansion of the sample due to absorption, respectively, enables the extraction of the optical properties of the sample directly below the tip and yields nanoscale resolved images simultaneous to topography. In addition, the technology has been advanced to enable Fourier-Transform Infrared Spectroscopy on the nanoscale (nano-FTIR) using broadband radiation from the visible spectral range to THz frequencies.
Albatross: Charting New Horizons in Infrared Spectroscopy
Authors: Lenke Nathalie , Rosenberger Philipp , Gröbmeyer Sebastian , Sebesta Aleksandar
Published: September 2024

With albatross, we showcase a compact infrared light source capable of producing single-cycle pulses with exceptional waveform stability. The efficient generation of multi-octave-spanning mid-infrared light is a remarkable illustration of its potential for infrared spectroscopy.
Optical Biosensing Using Whispering Gallery Mode Microspherical Shell Resonators
Authors: Farazi Soheil , Sumaria Vedant , Kaur Anantdeep , Zhang Zheyuan , Auclair Jared , Tadigadapa Srinivas
Published: September 2024

Novel biosensors employing whispering-gallery-mode microshell resonators are demonstrated. Thermo-optical biosensing detects urea, while refractive index-based biosensors show high sensitivity to gold coated nanoparticles, promising applications in biochemical sensing for medical, environmental, and food safety.
Characterization of Optically Pumped Magnetometers for Biomagnetic Sensing
Authors: Martinez Ricardo Jimenez , Allison Dean , Lechuga Vanessa , Alem Orang , Hughes K. Jeramy , Knappe Svenja
Published: September 2024

We characterize the performance of several hundreds optically pumped magnetometers capable of measuring human brain activity. Large-scale manufacturing of quantum sensors with tight tolerances is critical in the transition from research laboratories to real-world applications.
3D Photonic Integrated Circuit Imagers with Embedded 45-degree Reflectors
Authors: Zhang Yichi , Lee Shun-Hung , Lin Yi-Chun , Ben Yoo S. J.
Published: September 2024

We design, fabricate, and characterize compact 3D photonic integrated circuits (PICs) based on a multi-layer silicon nitride (Si3N4) platform with embedded 45
o
reflectors for vertical viewing. The resulting PICs can lead to a wafer-scale imager.
Sapphire Fiber Scattering Array Interferometer for Multiplexable High-Temperature Sensing
Authors: Shi Guannan , Thomas Joseph G. , Pickrell Gary , Wang Anbo , Zhu Yizheng
Published: September 2024

An intrinsic sapphire fiber scattering array interferometer (SAI) is presented. SAI generates robust interferometric signal with a ~20 dB signal-to-noise ratio and is immune to blackbody radiation-induced noise. Multiplexable high-temperature sensing to ~1500°C is demonstrated.
Lensfree nanoscopic imaging and sensing
Authors: McLeod Euan
Published: September 2024

Lensfree holographic microscopy provides an ultra-large field of view with submicron resolution using compact and cost-effective components. We discuss recent applications to time-gated fluorescence, air quality monitoring, and protein biosensing, including COVID-19 sensors.
Real-Time Airborne Particle Density Detection with High Spatial Resolution Using OFDR LiDAR
Authors: Wang Qirui , Zhang Guangyin , Zhao Kehao , Zhao Jieru , Zhong Shuda , Chen Kevin P.
Published: September 2024

This article demonstrates that a cost-effective OFDR LiDAR interrogator with a 1-nm wavelength sweep range can effectively measure the spatial distribution of smoke-generated particles and enable real-time detection and alert in free space.
Scalable Passive Optical Masks That Enable One- and Two-Species Atom-Trap Arrays
Authors: Fang Chengyu , Huft Preston , Norrell Sam A. , Deshpande Sanket , Saffman Mark , Kats Mikhail A.
Published: September 2024

We report a passive approach for trapping arrays of neutral atoms of one or two species, using a single laser. Compared to active setups, e.g., spatial light modulators, our approach is simple, compact, and robust.
Characterization of Three-Section AlGaInAs Multiple Quantum-Well Mode-locked Lasers for Space Applications
Authors: Huang Di , Colin Bryant , Arnold Kellen P. , Zhang Enxia , Weiss Sharon M. , Reed Robert A. , Delfyett Peter J.
Published: September 2024

We report a quantum-well-intermixing-free three-section mode-locked laser diode at 1580nm, featuring 1.70 psec pulse width. The fixed-point frequency analysis shows four different laser parameters conducive for compensating repetition rate and carrier frequency variations in space environment.
Integration of metasurface and PCSEL in real-time depth-sensing micro-system for facial recognition
Authors: Hsu Wen-Cheng , Chang Chia-Hsun , Hong Yu-Heng , Kuo Hao-Chung , Huang Yao-Wei
Published: September 2024

We demonstrate a novel dot projector architecture for depth-sensing perception facial recognition applying metasurfaces and photonic crystal surface-emitting lasers (PCSELs), which has area 55 times smaller and power-consumption 5~10 times lower than commercial dot projector.
Silicon NEMS Optomechanic Modulator for Multiplexed Recording of Electrophysiological Neural Signals
Authors: Gupta Harshvardhan , Cochran Andrew , Ahmed Zabir , Chamanzar Maysamreza , Piazza Gianluca
Published: September 2024

We present a novel NEMS Optomechanic modulator on a silicon photonics platform capable of resolving sub-millivolt analog signals, making it suitable for the recording and multiplexing of electrophysiological neural signals.
Reduction of Littrow Recombination Ghosts in Astronomic Spectrograph 1st-Order Transmission Gratings
Authors: Subash Uma , Lee Hanshin , Poutous Menelaos K.
Published: September 2024

We designed and fabricated a high-efficiency, first-order transmission spectrographic grating and measured the angular directional scatter at near-Littrow incidence, mapping the positions and suppression of Littrow recombination ghosts.
Integrated Metasurface Optics for Scalable Trapped-Ion Quantum Computing
Authors: Ollanik Adam J. , Bushati Rezlind , Gaudiosi David , Zultak Johanna , Krogstad Molly , Bohn Matthew , Zhu Wenqi , Agrawal Amit , Lezec Henri , Rowe Mary
Published: September 2024

Integrated metasurfaces can miniaturize, stabilize, and scale optical systems for trappedion quantum computing. We demonstrate monolithic integration of metasurfaces with waveguide/grating devices, fabrication of ITO metasurfaces for visible frequencies, and transparent metasurfaces for polarization control and beam forming.
Temperature Sensing with Reduced dn/dT Helical Fibers
Authors: Campbell Jennifer , Pietros Alexander R. , Dragic Peter D.
Published: September 2024

Temperature sensing based on low dn/dT helical glass core fiber is described. These fibers possess intrinsic bend loss with attenuation that is a strong function of temperature. A proof of concept over 25-80°C is presented.
Acoustoelectric RF Mechanical Oscillator with Optomechanical Readout
Authors: Mack John , Storey Matthew J. , Otterstrom Nils T. , Behunin Ryan O. , Starbuck Andrew , Leenheer Andrew , Musick Kate , Trotter Douglas , Rakich Peter T. , Eichenfield Matt
Published: September 2024

We present a CMOS-fabricated optomechanical microdisk resonator with acoustoelectric gain for a 949 MHz mechanical mode. Applying +5V of DC bias results in a 9.5 dB increase in the optically-detected RF power of the microdisk.
A 3D Image Sensor Based on Intentionally Shifted Focal Plane Switch Array with Detection Range above 200 m
Authors: Inoue Daisuke , Ichikawa Tadashi , Shimogaki Tetsuya , Matsubara Hiroyuki , Kawasaki Akari , Yamashita Tatsuya
Published: September 2024

We proposed and demonstrated a novel three-dimensional (3D) scanning image sensor consisting of a lens and chip with a detection range of 204 m and 3D imaging of a building located 45 m away.
Coherent laser interferometry over the deployed optical fiber network for seismic monitoring
Authors: Levi Filippo , Donadello Simone , Clivati Cecilia , Govoni Aladino , Margheriti Lucia , Vassallo Maurizio , Brenda Daniele , Hovsepyan Marianna , Bertacco Elio K. , Concas Roberto , Mura Alberto , Herrero Andre , Carpentieri Francesco , Calonico Davide
Published: September 2024

Integrating sensing capabilities into optical fiber networks offers significant opportunities in geophysical and environmental monitoring. We present an earthquake observatory based on coherent interferometry with ultrastable lasers, known for its sensitivity and long-range operation, reporting the detection of numerous seismic events and affirming its potential for a scalable sensing network.
A Case for Optics-based Microbial Risk Assessment of Potable Water
Authors: Maharjan Rijan , Thapa Anusa , Rajbhandari Prajwal , Faccio Daniele , Martins Emiliano R. , Krauss Thomas F , Dhakal Ashim
Published: September 2024

Reagentless optics-based techniques, such as fluorimetry, outperform all current methods in all key requirement categories for microbial risk assessment of potable water in resource-limited settings, provided that their specificity for viable bacteria is improved.
Suspended Mid-infrared Guided-wave Phase Shifters in an InP-based Platform
Authors: Hsiao Po-Yu , Midkiff Jason , Camp Patrick , Chen Ray T.
Published: September 2024

We fabricate suspended waveguide thermo-optic phase shifters on an InGaAs/InP platform for 3.6 μm to 5.2 μm wavelengths. Utilizing suspended waveguides, 2π phase tuning power (P
2π
) drops below 100 mW via a simple fabrication process.
Rotationally displaced intensity distribution around square nano-plates excited by circularly polarized light
Authors: Ichiji Naoki , Ishida Takuya , Morichika Ikki , Tatsuma Tetsu , Ashihara Satoshi
Published: September 2024

The rotationally displaced intensity distribution of electric fields around the nano-square plasmonic plate under circular polarization is revealed to arise from the superposition of multiple plasmon modes, not solely the fundamental mode.
Sensitivity Estimation for the Future Laser Ionization Diagnosis in Inferring Neutral Particle Density in the TCABR Tokamak
Authors: Albuquerque Fernando A. F. , Wetter Niklaus U. , Severo José Helder F.
Published: September 2024

This study undertakes an estimation of photoionization occurrences and the ensuing reduction in hydrogen spectral line intensities via Laser-Induced Ionization. The objective is to quantify the sensitivity of the neutral particle density diagnostic.
Demonstration of silicon on-chip spectrometer using a racetrack resonator and a Mach-Zehnder lattice filter
Authors: Zhang Shiqi , Yang Tongxin , Fu Xiuli , Zhang Lei
Published: September 2024

We demonstrate an integrated spectrometer on silicon-on-insulator (SOI) using a tunable racetrack resonator with an FSR of 5 nm and an 8-ch Mach-Zehnder lattice filter. The device has a resolution of 0.2 nm over C-band.
Towards Entanglement Distribution Over Classical Fiber Infrastructure with Parallel Distribution of Precise Time and Optical Frequency
Authors: Vojtech Josef , Novak Tomas , Andriantsarazo Elisabeth , Guerra-Yanez Carlos , Pospisil Petr , Slapak Martin , Vohnout Rudolf , Havlis Ondrej , Kundrat Jan , Altmannova Lada , Smotlacha Vladimír
Published: September 2024

Long-distance time and frequency transfer methods in optical fiber links have matured in recent years, including into this parallel operation with data. On other hand quantum entanglement transfer over shared fiber are really rare. This paper presents the initial steps of verifying the potential for sharing classical data transfer with the transfer of entangled states on the same fiber..
Fabrication of ZrN nanomasks for selective epitaxy of GaN/AlGaN nanowire arrays for efficient UV light emitters
Authors: Zadura Magdalena , Ekielski Marek , Guziewicz Marek , Sobanska Marta , Olszewski Karol , Zytkiewicz Zbigniew R. , Szerling Anna
Published: September 2024

In this work, we present the technology for ZrN nanostructures, which serve as masks for the selective area growth of GaN/AlGaN nanowires by plasma-assisted MBE on GaN/sapphire templates.
Coupling and Splitting Structures for SiN Interposer in Quantum Photonic Integrated Circuits
Authors: Krc J. , Ljubotina M. , Debevc A. , Lufungula I. Luntadila , De Witte J. , Midolo L. , Topic M. , Van Thourhout D.
Published: September 2024

Designs of low-loss and fabrication-tolerance-resistant adiabatic optical coupler for InAs/GaAs quantum dot single-photon sources, micro-transfer-printed on a SiN interposer, and SiN multimode interferometer signal splitter are presented for application in quantum photonic integrated circuits.
All-Optical Orbital Angular Momentum Encoded Diffractive Networks
Authors: Zhang Kuo , Liao Kun , Cheng Haohang , Feng Shuai , Hu Xiaoyong
Published: September 2024

We report a strategy of OAM-encoded diffractive deep neural network (OAM-encoded D2NN) that encodes the spatial information of objects into the OAM spectrum of the diffracted light to perform all-optical classification.
Standardized Design: On-chip Diffractive Optical Logic Operation Units with Ultra-compact Structures
Authors: Sun Run , Huang Yuyao , Liu Wencan , Fu Tingzhao , Yang Sigang , Chen Hongwei
Published: September 2024

With an ultra-compact footprint of 9×18μm2, on-chip diffractive optical logic operation units accomplish (N)AND, (N)OR, and X(N)OR utilizing a standardized structures with only 36 etching slots. It has outstanding integration capability and relaxed fabrication requirements.
Experimental Validation of Online Learning in Deep Photonic Neural Networks
Authors: Li Xi , Biswas Disha , Zhou Peng , Brigner Wesley H. , Friedman Joseph S. , Gu Qing
Published: September 2024

We experimentally demonstrated supervised and unsupervised online learning for the “NCSUTD” letter recognition task in a deep photonic neural network using fiber optics and proposed a chip-scale crossbar multilayer structure for unsupervised learning.
4× 25 Gb/s on-chip WDM cascaded with MOSCAP-driven silicon microring modulators
Authors: Hsu Wei-Che , Nujhat Nabila , Kupp Benjamin , Conley John F. , Wang Alan X.
Published: September 2024

We present an on-chip wavelength division multiplexing cascaded by four MOSCAP silicon microring modulators integrated with high-mobility titanium-doped indium oxide. With promising 4 × 25 Gb/s data rates, it holds potential for advanced optical communication.
Spatial Correlation of Whispering Gallery Modes in an Active Micro-Bottle Resonator
Authors: Dutta Subhajit , Pandit Somnath , Shivakiran Bhaktha B. N.
Published: September 2024

The spatio-spectral imaging of active micro-bottle resonator (MBR) is performed and the spatial correlation of the whispering gallery modes (WGMs) are investigated in a dye-doped poly (methyl methacrylate) (PMMA) coated silica micro-bottle resonator.
Ultra-Linear Wideband FMCW Laser Based on Frequency-Shifted Self-Injection Locking
Authors: Zhang Jichen , Li Shangyuan , Zheng Xiaoping , Xue Xiaoxiao
Published: September 2024

A self-injection locked diode laser is demonstrated for frequency-modulated continuous-wave light generation. The residual nonlinearity is reduced by 26 folds compared to the free-running state, reaching 5.8×10-7 when the modulation bandwidth is 100 GHz.