bluuebunny/crossref_metadata_2025 huggingface dataset:
Defect Resistance and Self-Healing within Spun Photonic Crystal Fibres
Authors: Luo Yanhua , Canning John , Wang Wenyu , Tafti Ghazal , Wang Shuai , Tian Yuan , Cook Kevin , Peng Gang-Ding
Published: October 2020

We demonstrate that under appropriate conditions it is possible to build in tolerance to poor design of a structured optical fibre like photonic crystal fibre. During drawing its internal symmetry of the structure is improved.
Design of 3D Integrated Optical Hybrid for Weakly-Coupled SDM Coherent Detection
Authors: Meng Ping , Yang Yu , Cheng Ruiting , Chen Zhangyuan , He Yongqi , Li Juhao
Published: October 2020

We propose a design of 3-dimensional integrated optical hybrid based on laser direct writing fabrication method for spatial-division-multiplexing transmission systems. Simulation shows that it can operate in the whole C-band with excess loss of 0.31-dB.
Electrically Controlled Bistability in Microring Resonator for Nonlinear Photonic Applications
Authors: Nandi Riddhi , Goswami Arnab , Das Bijoy Krishna
Published: October 2020

Bistability in silicon microring resonator is electrically controlled for maximizing gain in four wave mixing. The proposed technique can be used in designing actively controlled efficient photon sources for quantum photonic chips operating at λ~1550nm.
Coupled Ridge Resonator Filter Design using Microwave Engineering Filter Synthesis
Authors: Nguyen Thach G. , Yego Kiplimo , Ren Guanghui , Boes Andreas , Mitchell Arnan
Published: October 2020

An elegant filter synthesis technique commonly used in microwave engineering is utilized to synthesize coupled resonator filters with close spacing using the recently reported ridge resonators, achieving different filtering functions including Butterworth or Chebyshev responses.
Learning-based Symbol Classification in Stokes Space for 4-PolSK Visible Light Communication Signals
Authors: Pepe Alberto , Liu Xin , Wei Zixian , Fu H. Y.
Published: October 2020

We propose a 4-PolSK system for a 450-nm single-LED indoor visible light communication link. The Stokes space symbols are classified via learning algorithms scoring a BER below the FEC limit for a noise variance under 0.4-nW.s..
Digital Modal Decomposition Based on Stochastic Parallel Gradient Descent Algorithm and its Validation
Authors: Singh Karamdeep , Sharma Priyanka , Srinivasan Balaji , Koilpillai R. David , Venkitesh Deepa
Published: October 2020

We present validation study of modal decomposition methodology based on SPGD algorithm. Composite beams of multiple modes with known proportions are generated using SLM and their weights and phases are determined iteratively using SPGD method.
Reconfigurable integrated comb filters based on self-coupled microring resonators with mode-splitting feature
Authors: Cai Minxue , Yin Xiang , Sun Hongyu , Liu Yifeng
Published: October 2020

We experimentally demonstrate reconfigurable integrated comb filters based on self-coupled microring resonators with mode splitting feature. Dynamic tuning of channel spacing as well as number of filtering channels via integrated thermo-optic micro-heaters are demonstrated.
Compact Polarization Beam Splitter Using Contra-Directional Gratings on SOI platform
Authors: Minz Manoranjan , Mishra Darpan , Sonkar Ramesh Kumar
Published: October 2020

This paper presents a polarization beam splitter which is designed using grating assisted couplers on silicon-on-insulator platform. The proposed device is compact with ~15 µm length and acceptable insertion loss, return loss, and extinction ratio.
Fabrication of Spherical Concave for Waveguide-to-fiber Vertical Coupling Based on Gray-tone Optical Lithography
Authors: Wang Xueting , Deng Chuanlu , Huang Yi , Zhang Ruhuan , Zhang Xiaobei , Wang Tingyun
Published: October 2020

We propose a novel fabrication of total internal reflection spherical concave with polymer material by gray-tone optical lithography on printed circuit boards for vertical optical coupling between waveguides and optoelectronic devices.
Spectral Linewidth of a Distributed Feedback Interband Cascade Laser
Authors: Deng Yu , Wang Cheng
Published: October 2020

We experimentally show that a distributed feedback interband cascade laser exhibits a linewidth broadening factor around 2.5, an intrinsic linewidth down to 13 kHz, and a total spectral linewidth as narrow as 284 kHz.
Simultaneous temperature and refractive index sensing using C-fibre Fabry-Perot microcavity
Authors: Li Xuegang , Xie Liushun , Warren-Smith Stephen C. , Ebendorff-Heidepriem Heike , Nguyen Linh V.
Published: October 2020

A simultaneous temperature and refractive index fibre sensor based on a Fabry– Perot interferometer is demonstrated using a C-fibre and single mode fibres.
Design of Orbital Angular Momentum Modes Coupler Based on Circular Photonic Crystal Fiber
Authors: Yang Jingxuan , Zhang Hu , Zhang Xiaoguang , Li Hui , Xi Lixia
Published: October 2020

We propose OAM modes generation using an all-fiber coupler based on circular photonic crystal fiber. By selecting the center-to-center distance and coupling length properly, high mode purity (>85%) and high coupling efficiency (>90%) are achieved.
A Multi-Dimensional Modulation Format for Mitigating Inter-Channel Nonlinear Interference in WDM Systems
Authors: Jin Taowei , Huang Xiatao , Yi Xingwen , Zhang Jing , Li Zhaohui , Qiu Kun
Published: October 2020

We apply a multi-dimensional (MD) shaping algorithm to improve the nonlinear tolerance of WDM systems. The results show that compared with PM-8QAM, multi-dimensional PM-16QAM exhibits better nonlinear tolerance.
Novel SWGMS structure for high-sensitive refractive index sensing employing first and second Bragg-grating modes
Authors: Heinsalu Siim , Matsushima Yuichi , Ishikawa Hiroshi , Utaka Katsuyuki
Published: October 2020

First and second Bragg-grating modes in subwavelength grating multi-slot structures are newly employed for Si waveguide sensors. High sensitivities of 813 nm/RIU for the first mode or 30 dB for the second mode are simulated.
A Low-cost OSNR Monitoring Method Using Frequency Spectra of Low-speed Sampling Signals
Authors: Huang Zhuili , Qiu Jifang , Wu Jian , Liu Yufei
Published: October 2020

A low-cost OSNR monitoring method using artificial neural networks trained by frequency spectra of low-speed sampling signals is proposed. The monitoring range from 10.5 to 28.5 dB with error less than ± 0.5 dB is achieved.
Narrow and Stable GaN/AlGaN UV Light Source by Using Strain Relaxing Superlattices
Authors: Li Mo , Chen Feiliang , Kocher Claudius , Zhang Jian , Taylor Robert A.
Published: October 2020

A GaN/Al0.3Ga0.7N UV light source with GaN/AlxGa1-xN strain relaxing superlattices on c-plane sapphire was proposed. Narrow and much more stable emission on excitation power with relaxed strain were demonstrated by micro-PL and Raman spectroscopy.
Lifetime-Multiplexed Luminescence in situ Hybridisation for Bacteria Detection
Authors: Jia Jianguo , Sayyadi Nima , Wang Yan , Hu Honghua , Vickery Karen , Lu Yiqing
Published: October 2020

We develop europium complexes with distinguishable luminescence lifetimes in the microsecond-to-millisecond region as new multiplexing probes for luminescence in situ hybridisation, and apply them to multiplexed detection and lifetime imaging of bacterial species.
Temperature Sensor Based on Mechanically Induced Long Period Fiber Gratings using a 3-D Printer
Authors: Lee Jinho , Kim Jihwan , Lee Ju Han
Published: October 2020

We demonstrate the implementation of a temperature sensor based on mechanically induced long period fiber gratings (MILPFGs) using a 3-D printer. The temperature sensitivities are measured to be –97 pm/°C and 0.33 dB/°C, respectively.
Understanding the mechanism of molecular carbon emissions using time-resolved LIBS during online coal characterization
Authors: Hemalaxmi R , Vasa NJ , Seshadri S
Published: October 2020

The origin, formation mechanism, and emission persistence time of atomic (C I) and molecular (CN Violet system and C2 Swan system) carbon emissions from coal plasma generated by laser ablation were studied using Time-resolved LIBS.
Enhanced terahertz emission of silicon nanowire-coated gallium arsenide photoconductive antenna
Authors: Cabello Neil Irvin , De Los Reyes Alexander , Lopez Joybelle , Sarmiento Vladimir , Ferrolino John Paul , Faustino Maria Angela , Vistro Victor DC Andres , Yu Clairecynth , Vasquez John Daniel , Bardolaza Hannah , Talara Miezel , Shiihara Masaki , Mag-usara Valynn , Afalla Jessica , Tani Masahiko , Salvador Arnel , Somintac Armando , Estacio Elmer
Published: October 2020

We present threefold enhancement of terahertz emission from silicon nanowire (SiNW)-coated gallium-arsenide photoconductive antenna over its uncoated counterpart. The enhancement is attributed to the increased photoabsorption, and possibly additional photoconductive pathways induced by the SiNWs.
Slow amplification of externally injected strong THz pulses in a THz quantum cascade laser
Authors: Sakasegawa Yohei , Hayashi Shin’ichiro , Saito Shingo , Sekine Norihiko
Published: October 2020

We present transmission measurements on a terahertz quantum cascade laser (QCL) by means of time-domain spectroscopy employing a strong THz pulse source in order to examine amplification potential of the QCLs for emerging applications.
The Investigation of Rayleigh Backscattered Signal Statistics in a φ-OTDR System Incorporating Optical Pre-Amplifier
Authors: Uyar Faruk , Kartaloglu Tolga , Ozbay Ekmel , Ozdur Ibrahim
Published: October 2020

We theoretically model and experimentally demonstrate the photon statistics of Rayleigh backscattered signal in a φ-OTDR based distributed fiber optical sensor in the presence of amplified spontaneous emission noise caused by optical pre-amplifier.
Directional bend sensing based on high birefringence dual-core photonic crystal fiber
Authors: Zhao Chaofan , Yan Binbin , Luo Yanhua , Yang Liwei , Lu Pengfei , Wang Kuiru , Yuan Jinhui , Sang Xinzhu , Peng Gang-Ding
Published: October 2020

We propose and demonstrate a directional bend sensing based on Mach-Zehnder interferometer in a high birefringence dual-core photonic crystal fiber. Its curvature sensitivity is up to 4.24 nm/m–1 within the curvature range of 2.19-3.99 m–1.
3D Printed Durable Flexible Memory Thermo Plastic Copolymers for Packaging of Optical Components
Authors: Canning John
Published: October 2020

Embedding fibre Bragg gratings (FBGs) in memory retaining flexible thermo plastic copolyester is assessed.
Laser-based photo-polymerisation method for the fabrication of 3D multilayer paper-based devices
Authors: Galanis P. P. , He P. J. W. , Katis I. N. , Iles A. H. , J A.J.U. Kumar , Eason R. W. , Sones C. L.
Published: October 2020

We report a laser-based photo-polymerisation technique for the fabrication of 3D -multilayer paper-based devices. This method circumvents fabrication issues associated with other reported methods (e.g. alignment, contact), providing a pathway for mass-manufacture of paper-based devices.
Quantitative evaluation of photoaging using photoacoustic microscopy
Authors: Hiroki HATTORI , Takeshi NAMITA , Kengo KONDO , Makoto YAMAKAWA , Tsuyoshi SHIINA
Published: October 2020

Human skin sections affected by various degrees of photoaging were imaged using photoacoustic microscopy. The photoacoustic signal intensity from the upper dermis increased with aging progress. The feasibility of quantitative human skin evaluation was demonstrated.
Searching for physics beyond Standard Model using optically cooled nanoparticles
Authors: Howard Eric , Roberts Reece , Laplane Cyril , Volz Thomas
Published: October 2020

We propose to extend the search for new physics beyond Standard Model using optically trapped and laser cooled dielectric nanoparticles for the resonant detection of short-range forces and corrections to Newtonian gravity.
Nanometer Resolution of Tip-Enhanced Raman Spectroscopy in Tunneling Regime
Authors: Hsieh Chi-Ti , Liang Ching-Tarng , Cheng Pi-Ju , Chang Yia-Chung , Chang Shu-Wei
Published: October 2020

The high spatial resolution of tip-enhanced Raman spectroscopy may be due to the interaction between tip electrons and molecular vibrations. The resolution can be as low as 1.62 nm, closed to the experimental result.
Analysis of wavefront aberration in a single collimating lens based dual-beam exposure system
Authors: Le Vunam , Wu Guanhao , Zeng Lijiang
Published: October 2020

We analyzed the interference wavefront aberration in a single collimating lens based dual-beam exposure system. A linear relationship between the aberration and pinholes’ position was obtained and a 0.03λ-aberration in 65mm×65mm area was achieved.
Phase tracking of sub-10 fW heterodyne optical signals for precision laser displacement metrology in space
Authors: Roberts L.E. , Wade A.R. , Gozzard D.R. , Spollard J.T. , McKenzie K. , Shaddock D.A.
Published: October 2020

We present results for tracking the phase of a sub-10 fW optical carrier using an optimized phasemeter and cavity-stabilized lasers for future space-based interferometers.
Composite carbon nanotube - nanofiber device
Authors: Sadgrove Mark , Shimizu Maki , Homma Yoshikazu
Published: October 2020

We demonstrate the characterization of composite devices made by combining carbon nanotubes with optical nanofibers. Characterization is performed optically and using a scanning electron microscope. Advantages are discussed and future prospects considered.
Competitions between Drude and plasmon absorptions in graphene nanoribbons
Authors: Yao Wei , Tang Linlong , Wang Jun , Jiang Yadong
Published: October 2020

We demonstrate that the competitions between Drude and plasmon absorptions would induce the peaks of graphene nanoribbons to undergo a redshift when the relaxation time decreases to 5 fs.
Precision Interface Angle Sensing Via the Spin Hall Effect of Light
Authors: Bai Xiangxing , Tang Linlong , Zang Qing , Liu Yang , Sun Xiudong
Published: October 2020

We provide a simple method for accurately interface angle sensing using the spin Hall effect of light (SHEL) with minimum observable angles of 2.4 × 10–5 rad and 1.2 × 10–6 rad for the azimuth angle and pitch angle, respectively.
Optical Phase Extraction using Fourier, Continuous Wavelet and Hilbert Transform Methods - Effect of Carrier Frequency
Authors: Bagath Chandraprasad T , Vayalamkuzhi Pramitha , Bhattacharya Shanti
Published: October 2020

We discuss optical phase extraction methods from single off-axis interference images, using Fourier, Continuous Wavelet and Hilbert Transform Methods. Their accuracy is compared based on carrier frequency versus spatial frequency content of the sample.
Forming Multiple Aerial Images by Use of Infinity Mirror and Oblique Retro-Reflector
Authors: Chiba Kazunari , Fujii Kengo , Yamamoto Hirotsugu
Published: October 2020

This paper proposes an optical system to form multiple aerial images from a light source by use of infinity mirror optics and aerial imaging by retro-reflection. We analyse viewing angle of the multiple aerial images.
Ultra-high sensitivity near multiple bound states in the continuum in microcavity resonators
Authors: Gandhi Harsh K. , Ghosh Somnath
Published: October 2020

We study the topological properties of multiple optical bound states in the continuum using continuous parameter tuning. We utilize the formation of ultra-high-Q resonances to investigate the potential of quality-sensing in a speciality optical microcavity.
Halving Thickness of Aerial Display Device by Use of Slit Array
Authors: Inoue Kosuke , Nisimura Daiki , Naka Kenichiro , Takeda Yukihiro , Yamamoto Hirotsugu
Published: October 2020

We propose an optical design that halves thickness of the aerial display device, that is, our aerial display optics can form an aerial image twice as large as the size of the light-source display.
Enhancement of Magneto-Optic Kerr Effect (MOKE) by Backscattering Suppression
Authors: Iskandar Alexander A. , Nurrahman M. Reza
Published: October 2020

MOKE enhancement achieved by suppressing the backward scattering off an YIG spherical nanoparticle (NP) due to subtle compensation of the non-MOKE backscattered field multipolar components. Breaking the symmetry into a spheroid NP, yield higher MOKE.
A Quantum Scheme for Calculating the Inner Product of Unsigned Vectors
Authors: Chen Yanhu , Guo Hongxiang , Wu Jian
Published: October 2020

We propose a quantum scheme for calculating the inner product of unsigned vectors. Numerical simulations are used to test the accuracy and successful probability of the scheme and verify its feasibility.
A tunable-order all-optical temporal differentiator based on phase-shifted Bragg gratings
Authors: Liu Xiao , Wang Kuiru , Yan Binbin , Yuan Jinhui , Sang Xinzhu
Published: October 2020

A method for adjusting the differential order of a silicon-based waveguide grating differentiator by inputting light, which is through two-photon absorption and free carrier absorption effects, is proposed. The simulation results are demonstrated.
Bound-State Pulses in a Mamyshev Oscillator
Authors: Xu Shi-Sheng , Meng-Liu  , Wei Zhi-Wei , Luo Ai-Ping , Xu Wen-Cheng , Luo Zhi-Chao
Published: October 2020

We demonstrate the generation of bound-state pulses in a fibre Mamyshev oscillator by properly adjusting the pump powers. Our results would give some new insights into the pulse dynamics in Mamyshev oscillators.
Mid-infrared nonlinear optical properties of droplet-free chalcogenide GeSe2-As2Se3-PbSe glasses
Authors: Sohn Byoung-Uk , Kang Myungkoo , Sharma Rashi , Choi Ju Won , Blanco Cesar , Richardson Kathleen A. , Tan Dawn T. H.
Published: October 2020

Nonlinear properties of GeSe2-As2Se3-PbSe are studied using z-scan measurements from 2.5μm–5.5μm. The largest nonlinear refractive index is observed at 2.8μm, corresponding to the two-photon edge. A sub-peak at 4.6μm arises from mid-gap defect states.
Characterization of pulse length-dependent nonlinearity of gold in the near-infrared by self-phase modulation
Authors: Tuniz Alessandro , Palomba Stefano , de Sterke C. Martijn
Published: October 2020

We experimentally study pulse-length dependence of the ultrafast nonlinear response of gold in the near-infrared via self-phase modulation, finding no increase in nonlinearity for increasing pulse lengths, in contrast to previous reports at visible wavelengths.
Novel method for suppression of stimulated Brillouin scattering in optical fibers
Authors: Wang Zefeng , Tian Xin , Wang Meng , Zhao Xiaofan
Published: October 2020

We firstly report here a novel method for suppression of stimulated Brillouin scattering (SBS) in optical fibers by using specially designed and fabricated tilted fiber Bragg gratings. It opens new opportunity for SBS suppression in fiber communication, fiber sensing, and narrow-bandwidth high-power fiber laser systems.
All-fibre focal-plane wavefront sensor
Authors: Norris B.R.M. , Wei J. , Betters C.H. , Wong A. , Leon-Saval S.G.
Published: October 2020

We present a new type of wavefront sensor based on a fibre-mode-converter and deep learning. By only measuring intensities of the single-mode outputs array, both phase and amplitude on the incident wavefront can be reconstructed.
Complex-amplitude metasurfaces for orbital angular momentum multiplexing holography
Authors: Ren Haoran , Maier Stefan A.
Published: October 2020

We demonstrate the design and 3D printing of a large-scale complex-amplitude metasurface hologram for orbital angular momentum-multiplexing holography. The independent and complete amplitude and phase manipulation allows the lensless reconstruction of 200 OAM-dependent orthogonal image frames for holographic videos displays.
Comprehensive model for technoeconomic studies of next-generation central offices for metro networks
Authors: Alberto Hernández José , Quagliotti Marco , Serra Laura , Luque Lourdes , López da Silva Rafael , Rafel Albert , González de Dios Óscar , López Víctor , Eira Antonio , Casellas Ramon , Lord Andrew , Pedro Joao , Larrabeiti David
Published: October 2020

This paper introduces a novel and simplified cost model for designing and evaluating a Central Office Rearchitected as a Datacenter (CORD). The model includes equipment and elements for the realization of optical, packet switching, and data center parts with a special focus not only on relative costs but also on power consumption figures. The cost model is then applied to the design and comparison of a metropolitan area network (MAN) including both aggregation and metrocore nodes following several MAN node architectures based on CORD-like leaf-and-spine fabric. In particular, equipment disaggregation at the Central Offices, both on the packet-switching and optical components, can provide important cost savings to telco operators. On the other hand, incorporating computing/storage capabilities in the MAN for the realization of multiaccess edge computing (MEC) has a significant impact on the total network cost but especially on power consumption.
Method of curved composite hologram generation with suppressed speckle noise
Authors: Li Nan-Nan , Wang Di , Li Yi-Long , Wang Qiong-Hua
Published: October 2020

In this paper, a curved composite hologram (CCH) generation method with suppressed speckle noise is proposed. The recorded 3D object is considered as many layers with different depths and the planar hologram (PH) for each layer is generated accordingly. Then the PH is transformed to curved hologram (CH). The CH of the recorded 3D object can be generated by superposing the CHs for all the layers. Also, the linear phase factor is superposed to the CH of the object. For different objects, the bending angle and linear phase factor of the hologram are different. The CCH is generated by superimposing the CHs of different objects. Finally, the CCH is encoded by using the error diffusion method and optimized by superposing of the digital lens. When the CCH is reproduced from different angles, the reconstructed images with suppressed speckle noise can be displayed. The experimental results verify the feasibility of the proposed method.
Long-term stable platinum diselenide for nanosecond pulse generation in a 3-µm mid-infrared fiber laser
Authors: Wei Chen , Chi Hao , Jiang Shurong , Zheng Le , Zhang Han , Liu Yong
Published: October 2020

In this paper, we fabricate the bulk-like multilayer platinum diselenide (PtSe2) and employ it as saturable absorber (SA) for a passively Q-switched fiber laser operating at 2865 nm for the first time, to the best of our knowledge. The nonlinear optical measurements of the bulk-like multilayer PtSe2 reveal efficient saturable absorption property at around 3 µm showing a modulation depth of 8.54% and a saturation intensity of 0.074 GW/cm2. By introducing the bulk-like PtSe2-SA into the Ho3+/Pr3+ co-doped ZBLAN fiber laser, stable Q-switched pulses with a duration as short as 620 ns are achieved at the pulse repetition rate of 238.1 kHz. The maximum average power is 93 mW, corresponding to a peak power of 0.63 W. The excellent long-term stability of the PtSe2-SA was also verified utilizing the same experimental setup after 40 days of ambient storage of the PtSe2 sample. The results not only validate the excellent nonlinear optical performance of PtSe2, but also indicate that the bulk-like PtSe2 is a promising long-term stable SA material under ambient conditions for nanosecond pulse generation in the 3-µm mid-infrared spectral region.
Phase-only modulation with two vertical aligned liquid crystal devices
Authors: Arias Augusto , Paniagua-Diaz Alba M. , Prieto Pedro M. , Roca Javier , Artal Pablo
Published: October 2020

Spatial Light Modulators (SLMs) are widely used in several fields of optics such as adaptive optics. SLMs based on Liquid Crystal (LC) devices allow a dynamic and easy representation of two-dimensional phase maps. A drawback of these devices is their elevated cost, preventing a massive use of the technology. We present a more affordable approach based on the serial arrangement of vertical aligned LC devices, with characteristics of phase modulation similar to a widely used parallel aligned LC device. We discuss the peculiarities of the approach, the performance and some potential areas of applications.
Direct growth of high quality graphene nanowalls on dielectric surfaces by plasma-enhanced chemical vapor deposition for photo detection
Authors: Qian Fengsong , Deng Jun , Xiong Fangzhu , Dong Yibo , Hu Liangchen , Pan Guanzhong , Wang Qiuhua , Xie Yiyang , Sun Jie , Xu Chen
Published: October 2020

A method for direct growth of graphene nanowalls (GNWs) on an insulating substrate by plasma enhanced chemical vapor deposition (PECVD) is reported. The effects of growth temperature, plasma power, carbon source concentration, gas ratio and growth time on the quality of GNWs are systematically studied. The Raman spectrum shows that the obtained GNWs have a relatively high quality with a D to G peak ratio (ID/IG) of 0.42. Based on the optimization of the quality of GNWs, a field-effect transistor (FET) photodetector is prepared for the first time, and its photo-response mechanism is analyzed. The responsivity of the photodetector is 160 mA/W at 792 nm and 55 mA/W at 1550 nm. The results reveal that the GNWs are promising for high performance photodetectors.
All-optical tunable terahertz modulator based on a BiFeO3/Si heterostructure
Authors: Yue Jin , Ling Furi , Yao Jianquan
Published: October 2020

An all-optical tunable terahertz modulator based on a BiFeO3/Si heterostructure is proposed. Optical and transmission properties of the BiFeO3/Si sample are characterized by the terahertz time-domain spectrometer. Under an external optical pumping, the modulator demonstrates an optical power-dependent modulation effect. A maximum modulation depth of 91.13% can be acquired when the optical pumping power is 700mW in the observed frequency. Due to the separation and localization of photogenerated carriers caused by the BiFeO3/Si heterostructure, the conductivity of the device can be changed and finally resulting in a modulation of the incident terahertz wave. In addition, the photoconductive property of the BiFeO3 thin film on Si substrate is investigated to further explore and interpret the working mechanism of the proposed modulator.
X-ray verification of sol-gel resist shrinkage in substrate-conformal imprint lithography for a replicated blazed reflection grating
Authors: McCoy Jake A. , Verschuuren Marc A. , Miles Drew M. , McEntaffer Randall L.
Published: October 2020

Surface-relief gratings fabricated through nanoimprint lithography (NIL) are prone to topographic distortion induced by resist shrinkage. Characterizing the impact of this effect on blazed diffraction efficiency is particularly important for applications in astrophysical spectroscopy at soft x-ray wavelengths (λ ≈ 0.5 − 5 nm) that call for the mass-production of large-area grating replicas with sub-micron, sawtooth surface-relief profiles. A variant of NIL that lends itself well for this task is substrate-conformal imprint lithography (SCIL), which uses a flexible, composite stamp formed from a rigid master template to imprint nanoscale features in an inorganic resist that cures thermodynamically through a silica sol-gel process. While SCIL enables the production of several hundred imprints before stamp degradation and avoids many of the detriments associated with large-area imprinting in NIL, the sol-gel resist suffers shrinkage dependent on the post-imprint cure temperature. Through atomic force microscopy and diffraction-efficiency testing at beamline 6.3.2 of the Advanced Light Source, the impact of this effect on blaze response is constrained for a ∼160-nm-period grating replica cured at 90°C. Results demonstrate a ∼2° reduction in blaze angle relative to the master grating, which was fabricated by anisotropic wet etching in 〈311〉-oriented silicon to yield a facet angle close to 30°.
Selektion von Geschäftsprozessen zur Anwendung von Robotic Process Automation am Beispiel einer Versicherung
Authors: Eggert Mathias , Moulen Tobias
Published: October 2020

Häufig bremsen geringe IT-Ressourcen, fehlende Softwareschnittstellen oder eine veraltete und komplex gewachsene Systemlandschaft die Automatisierung von Geschäftsprozessen. Robotic Process Automation (RPA) ist eine vielversprechende Methode, um Geschäftsprozesse oberflächenbasiert und ohne größere Systemeingriffe zu automatisieren und Medienbrüche abzubauen. Die Auswahl der passenden Prozesse ist dabei für den Erfolg von RPA-Projekten entscheidend. Der vorliegende Beitrag liefert dafür Selektionskriterien, die aus einer qualitativen Inhaltanalyse von elf Interviews mit RPA-Experten aus dem Versicherungsumfeld resultieren. Das Ergebnis umfasst eine gewichtetet Liste von sieben Dimensionen und 51 Prozesskriterien, welche die Automatisierung mit Softwarerobotern begünstigen bzw. deren Nichterfüllung eine Umsetzung erschweren oder sogar verhindern. Die drei wichtigsten Kriterien zur Auswahl von Geschäftsprozessen für die Automatisierung mittels RPA umfassen die Entlastung der an dem Prozess mitwirkenden Mitarbeiter (Arbeitnehmerüberlastung), die Ausführbarkeit des Prozesses mittels Regeln (Regelbasierte Prozessteuerung) sowie ein positiver Kosten-Nutzen-Vergleich. Praktiker können diese Kriterien verwenden, um eine systematische Auswahl von RPA-relevanten Prozessen vorzunehmen. Aus wissenschaftlicher Perspektive stellen die Ergebnisse eine Grundlage zur Erklärung des Erfolgs und Misserfolgs von RPA-Projekten dar.
La baraja del Joker: factores desencadenantes de la conducta agresiva en el paciente con afección pseudobulbar
Authors: Viana-Vivanco Estefany , Flores-Pereira Andrés Alejandro , Alvarez-Baeza Alberto , Janssen-Aguilar Reinhard , Méndez-Domínguez Nina I.
Published: October 2020

La trama del Joker nos muestra el surgimiento del antihéroe a partir de Arthur, un individuo con un trastorno llamado afectación pseudobulbar, con antecedentes de abandono y abuso físico severo y maltrato con probable traumatismo encefálico, que vive sin vínculos sociales, carente de afecto, como cuidador primario de una familiar dependiente enteramente de él; el protagonista se mueve en un ambiente adverso, hostil en el que la sociedad que espera que él se comporte como si no tuviera ningún trastorno. un comportamiento normal”. Sin recursos y rechazado por su medio, resulta colateralmente afectado por la reducción de presupuesto para terapia y medicamentos. En un momento decisivo, convergen los diferentes detonantes de sus manifestaciones psicopatológicas que dan paso a la transformación del joker y paradójicamente lo llevarán a ser aceptado socialmente. Joker nos invita a reflexionar sobre la importancia de a los programas de salud mental, los valores humanos, la cultura de la Paz y el buen trato como pilares fundamentales para promover la salud mental en la sociedad. El presente artículo tiene por objetivo el revisitar la fisiopatología de la afección pseudobulbar y establecer los aspectos clínicos, familiares, ambientales y socioculturales potencialmente asociados a la conducta destructiva de Joker.
WYZNACZNIKI PROFESJONALIZMU NAUCZYCIELA – DYSKUSJA GLOTTODYDAKTYCZNA A POLITYKA I PRAKTYKA OŚWIATOWA
Authors: Jaworska Mariola
Published: October 2020

The professionalism of a teacher is their competence, expertise, “knowledge of the craft”, but also the ability to meet high cognitive, operational and ethical standards. On the one hand, this is rooted in social and cultural expectations, related to the educational needs of society, but on the other it has a personality dimension, connected with the teacher’s individuality, which is evidenced in the specific relations they have with students.

This article aims to analyse the determinants of the professionalism of the contemporary foreign language teacher found in recent glottodidactic discussion and compare these to the current educational policy and practice. It will present both theoretical approaches and the selected results of studies and reports on this topic.
LE RÔLE DE L’INTERDISCIPLINARITÉ DES TRADUCTIONS PÉDAGOGIQUES DANS LA FORMATION LINGUISTIQUE DES ÉTUDIANTS EN PHILOLOGIE ROMANE
Authors: Chmiel-Bożek Halina
Published: October 2020

Despite the growing number of academic publications discussing the advantages of translation for language learning, school teachers of French rarely use such exercises in their work with students, complaining mainly about lack of time and suitable teaching materials. Academic centres which educate future linguists offer more opportunities to use translation in practical French language classes. This article presents the opinions of students of Romance studies on the subject of translation in language learning after a semester of work with Janina Radej’s publication entitled “Francuski w tłumaczeniach. Gramatyka 1-4” [French in translation. Grammar 1-4]. It was found that for students, translation is a new and attractive exercise that diversifies the language learning process. Despite the greater effort needed, students unanimously declared that they want to do this type of exercise. They recognised not only benefits in terms of linguistic improvement, but also the interdisciplinary value, since translation exercises in the language course also offer students preparation for classes in translation studies, and serve as a prelude for doing translations in the future.
Questionnaire - Answer
Authors: Misiak Tomasz
Published: October 2020

-
Antropologia wolności w filozofii Sartre’a i Lévinasa
Authors: Błaszczyk Marek
Published: October 2020

This paper sets out to outline the singular nature of the dimension of anthropology of freedom in the philosophies of Jean-Paul Sartre and Emmanuel Lévinas, the leading existentialists of the 20th century. It seems that the phenomenon of human freedom, one of the fundamental issues in philosophical anthropology, in particular in the humanist reflection, proves to be problematic when one seeks to elucidate it without ambiguity. This becomes even more difficult given that it prompts further momentous intellectual quandaries, mostly those concerned with the nature of the meaning of existence itself. The concepts advanced by Sartre and Lévinas – although they represent different visions of the human – undoubtedly provide much philosophical inspiration for all kinds of reflection on the vital issue of freedom.
Ceny niewolników w „Historia Lausiaca” autorstwa Palladiusza z Helenopolis
Authors: Milewski Ireneusz
Published: October 2020

The paper draws on the accounts by Palladius, bishop of Bithynian Helenopolis, to gather insights into slave prices. The figures contained in the source vary to a great extent (from 3 to 20 solidii for a slave). The author verifies the information against other late antique and early Byzantine accounts regarding slave prices.
Nowe ruchy religijne a koncepcje zrównoważonego rozwoju: ekoteologia Wiary Bahá’í
Authors: Anoszko Sergiusz
Published: October 2020

The chief aim of this paper is to outline the concept of sustainable development which is integrated into the doctrine of a relatively novel world religion known as the Bahá’í Faith. The study focuses on the description of causes behind the crisis and potential solutions as they are seen by the Baha’is, by means of analysis of their Sacred Writings and more profound insights into the doctrine, in particular where it concerns ecology and social-economic development.
Żołnierze a dzikie i obce zwierzęta na linii frontu wojennego w ujęciu autorów antycznych
Authors: Kostuch Lucyna
Published: October 2020

The aim of this paper is to analyze antique testimonies documenting the relationships between soldiers and the wild and strange animals that armies encountered on the march, in military camps, on the battlefield and during clashes at sea. Also, the author attempts to discuss the numerous problems of reconstructing such relationships. The wild and strange beasts on the frontline drew the attention of writers for several reasons: they were attributed the role of divine omens, and therefore their spontaneous appearance may have had an impact on the course of military action; when soldiers saw an animal of a particular species, things were discussed; one would also describe the animals the soldiers observed, hunted, or played with. Thus the paper highlights one of the aspects in the daily life of soldiers of the Greco-Roman world. In a broader sense, the study combines historical research with ethological inquiry.
Sprawozdanie z warsztatów terenowych „Przybliżenia: Łemkowszczyzna na styku kultur”
Authors: Ksenicz Igor
Published: October 2020

Sprawozdanie z warsztatów terenowych „Przybliżenia: Łemkowszczyzna na styku kultur”
The Obsessive-Compulsive Inventory–Revised: Replication of the psychometric properties in China
Authors: Gong Hengfen , Nederpel Tessa M. H. , Lin Guozhen , Zhang Yingying , Yang Yong , Li Bin , Luo Xiao , Fang Fang , Li Bin , Liu Wenjuan , Zhang ChenCheng , Sun Xirong , Lee Eric B. , Storch Eric A. , Zhan Shikun
Published: October 2020

The aim of this study is to replicate the findings from previous research about the psychometric properties of the Mandarin Chinese version of the Obsessive-Compulsive Inventory–Revised (OCI-R), which assesses the presence of symptoms obsessive-compulsive disorder and the distress associated with those symptoms. The final clinical sample included 80 participants from multiple psychiatric outpatient clinics in China. Participants completed the following questionnaires: the OCI-R, the Depression, Anxiety, and Stress Scale (DASS-21), the Yale-Brown Obsessive-Compulsive Scale–II (Y-BOCS-II), and the Clinical Global Impressions Scale, Severity (CGI-S). The Mandarin Chinese version of the OCI-R demonstrated good internal consistency for the total scale and each subscale. Good convergent and divergent validity was established. The Mandarin Chinese version of the OCI-R demonstrated good psychometric properties. Further research is needed to examine the factor structure of the Chinese version of the OCI-R and the extent to which it aligns with the original version.
Effects of different pretreatment methods on the enzymatic hydrolysis of cassava residue
Authors: Jia Zhixin , Zheng Ying , Zhou Jinghong
Published: October 2020

The enzymatic hydrolysis of cassava residue treated by a hot water (HW) pretreatment, an extreme-low acid (ELA) pretreatment, and an alkaline hydrogen peroxide (AHP) pretreatment was investigated. The results showed that the ELA pretreatment dissolved greater xylan and glucose quantities than the HW pretreatment under the same conditions, and the xylan and glucan contents of the pretreated substrate affected the subsequent cellulase hydrolysis. The conversion to glucose by cellulase hydrolysis reached 81.4% after the HW pretreatment, while the glucose yields under the ELA and AHP pretreatment conditions were 78.3% and 71.0%, respectively. In addition, supplementation with xylanase improved cellulase efficiency. At an equal xylanase dosage, a higher glucose yield (i.e., 91.3%) was achieved for the ELA-pretreated substrates that contained a lower xylan content. Xylanase supplementation in the AHP pretreatment had little effect on the glucose conversion. Finally, X-ray diffraction studies showed that the HW and ELA pretreatments increased the cassava residue crystallinity, while the AHP pretreatment had little effect.
Facile synthesis of lignosulfonate-graphene porous hydrogel for effective removal of Cr(VI) from aqueous solution
Authors: Zhang Zhili , Li Fengfeng , Ji Xingxiang , Chen Jiachuan , Yang Guihua , Lucia Lucian A.
Published: October 2020

A green and facile fabrication strategy for synthesis of lignosulfonate-graphene porous hydrogel (LGPH) was designed via incorporation of lignosulfonate (LS) into graphene oxide (GO). This process was achieved by a simple self-assembly method at low temperature, with LS serving as surface functionalization agent. Benefiting from the abundant functional groups of LS and the large surface areas of graphene oxide, the prepared LGPH hydrogel displayed 3D interconnected pores and exhibited an excellent adsorption capacity for Cr(VI) (601.2 mg/g) ions dissolved in water. Importantly, the free-standing LGPH was easily separated from water after the adsorption process, and the adsorption capacities of Cr(VI) onto LGPH maintained 439.1 mg/g after 5 adsorption-desorption cycles. The cost-effectiveness and environmental friendliness of LGPH make it a promising material for removing heavy metals from wastewater.
Evaluación de materiales flotantes biodegradables para cultivos hidropónicos de lechuga (Lactuca sativa)
Authors: Tamayo Gutiérrez Evelin Alexandra , Carrera Pozo Bonye , Racines-Oliva Mauricio Andrés
Published: October 2020

This study proposes an alternative biodegradable material for use with lettuce crops utilizing the bare-root hydroponic system, with the aim of functionally replacing expanded polystyrene, commonly used as a supporting material despite being a highly contaminating substance. This proposal is based on the production of individual pieces of floating material made from agro-industrial waste with an organic wax waterproof coating. The materials were produced in Quito, Ecuador, and the variables analyzed were hardness, compressive strength, flexural strength and microbiological contamination of the material during the vegetable growing period. Results showed that the alternative substrate with the greatest adaptability to the crops was made from a carnauba wax-coated palm fiber (Elaeis guineensis) blended with rice, in a ratio of 70%-30%, respectively.
Clima de seguridad laboral y conductas de seguridad en una empresa de la industria del acero en el Perú
Authors: Herrera Díaz Manuel Enrique
Published: October 2020

Los trabajadores son el eje principal de la seguridad y salud en el trabajo, razón por la cual las empresas deben orientar sus esfuerzos hacia conocer cada vez más a su capital humano y lograr su toma de conciencia y participación en la gestión preventiva de la seguridad. Las variables utilizadas en la presente investigación son el clima de seguridad laboral (CLS), las conductas de seguridad (COS) y variables sociolaborales. Se verificó la fiabilidad mediante el alfa de Cronbach y las relaciones entre las variables se evaluaron con el coeficiente de Spearman, las pruebas t y ANOVA. Los principales resultados obtenidos son: 1) la fiabilidad de los constructos, 2) la verificación de la correlación significativa y positiva entre CLS y COS, 3) no se encontraron relaciones de causalidad de las variables sociolaborales con el CLS y las COS, y 4) las variables sociolaborales edad y tiempo de servicio influyen en la participación en la seguridad (PAS).
The Idea of Minimum Protection of Socioeconomic Rights under the ECHR
Authors: Milašiūtė Vygantė
Published: October 2020

The article examines to what extent and how the protection of socioeconomic rights can be and is actually effected under the ECHR. This is done taking into account the fact that only minimum protection of some socioeconomic rights is necessary for the realization of the ECHR rights.
The Issue of Complicity with a Non-Identified Person in Lithuanian Case Law
Authors: Skripkutė Greta
Published: October 2020

The article aims to reveal the issues of complicity with an unidentified person and to analyze the peculiarities of the application of this institute in the practise of the courts of all levels after the plenary session of the Supreme Court of Lithuania on January 6, 2009 when the position was formed. The issues include assumptions based on court decisions, a possible breach of the presumption of innocence against an unidentified person, and the principle of the inevitability of criminal liability is also discussed. The analysis highlighted the incompatibility of some court decisions with the provisions of criminal law, the importance of the wording used by courts and pre-trial officers, prosecutors for the presumption of innocence, and the need to maintain a balance when convicting an identified accused who was associated with an unidentified person.
Considerações teóricas sobre governança corporativa no terceiro setor à luz da teoria da agência
Authors: LACRUZ ADONAI JOSÉ
Published: October 2020

Resumo Apresenta-se neste artigo uma revisão da literatura sobre governança corporativa em Organizações Não Governamentais (ONGs) sob a perspectiva analítica da teoria da agência, em especial alinhando os conceitos ao contexto do terceiro setor brasileiro e à relação de agência na qual o doador (principal) contrata a ONG (agente) para o desenvolvimento de projeto por meio da doação de recursos vinculados. Espera-se, com isso, contribuir para o melhor entendimento da relação entre ONGs e doadores e para o desenvolvimento de futuras pesquisas. Os fundamentos da teoria da agência são muitas vezes abordados de forma incompleta, quando a governança corporativa é sobreposta ao contexto do terceiro setor. Assim, foram extrapolados os pressupostos e conceitos para o ambiente do terceiro setor no Brasil. Como resultados podem-se destacar a proposição de que o pressuposto da incompatibilidade de horizontes de planejamento entre principal (doador) e agente (ONG) ocorre de forma inversa no terceiro setor ao assumido como regra geral para organizações empresariais e o reconhecimento de custos de agência relacionados às perdas residuais, dos quais decorrem problemas de agência de natureza propriedade x gestão também no ambiente do terceiro setor. Assim, a estruturação da governança corporativa no terceiro setor sob a perspectiva da teoria da agência permitiu formular relações que complementam as generalidades da teoria, contribuindo para o melhor entendimento da sua aplicação, bem como para a proposição de uma agenda de pesquisa.
Theoretical considerations on corporate governance in the third sector in the agency theory perspective
Authors: LACRUZ ADONAI JOSÉ
Published: October 2020

Resumo Apresenta-se neste artigo uma revisão da literatura sobre governança corporativa em Organizações Não Governamentais (ONGs) sob a perspectiva analítica da teoria da agência, em especial alinhando os conceitos ao contexto do terceiro setor brasileiro e à relação de agência na qual o doador (principal) contrata a ONG (agente) para o desenvolvimento de projeto por meio da doação de recursos vinculados. Espera-se, com isso, contribuir para o melhor entendimento da relação entre ONGs e doadores e para o desenvolvimento de futuras pesquisas. Os fundamentos da teoria da agência são muitas vezes abordados de forma incompleta, quando a governança corporativa é sobreposta ao contexto do terceiro setor. Assim, foram extrapolados os pressupostos e conceitos para o ambiente do terceiro setor no Brasil. Como resultados podem-se destacar a proposição de que o pressuposto da incompatibilidade de horizontes de planejamento entre principal (doador) e agente (ONG) ocorre de forma inversa no terceiro setor ao assumido como regra geral para organizações empresariais e o reconhecimento de custos de agência relacionados às perdas residuais, dos quais decorrem problemas de agência de natureza propriedade x gestão também no ambiente do terceiro setor. Assim, a estruturação da governança corporativa no terceiro setor sob a perspectiva da teoria da agência permitiu formular relações que complementam as generalidades da teoria, contribuindo para o melhor entendimento da sua aplicação, bem como para a proposição de uma agenda de pesquisa.