C on f e r e n c e P r o g r a m

OPTM
Tuesday, 20 April[OPTM-1]  15:30-17:00
OPTM Session 1
Chair: Yukitoshi Otani
Utsunomiya University

Wednesday, 21 April

OPTM-1-05  16:45
On the possibility of visualization ofrelief of rough surfaces via laser
induced thermal emission‌1‌

Program

OPTM-1-03  16:15
Ghost Imaging with Probability
Estimation Using Convolutional Neural
Network - Improving Estimation
Accuracy Using Parallel Convolutional
Neural Network Shoma Kataoka, Yasuhiro Mizutani,
Tsutomu Uenohara, Yasuhiro Takaya
Osaka University
Deep learning ghost imaging (DLGI) is amethod to obtain high-quality images fromimages obtained by ghost imaging withfewer measurements. We improved theaccuracy of DLGI by parallelizing theconvolutional layers.

OPTM-1-04  16:30
Time of flight three-dimensional
imaging camera using temporalcompressive sampling technique
Quang Duc Pham‌1,2‌, Yoshio Hayasaki‌3‌‌1‌
National Center for Technological Progress‌
Institute of Science
Vietnam, ‌2Vietnam‌
Technology and Innovation, ‌3Utsunomiya
University Center for Optical Research and
Education
A new type camera constructed by an active
light source and a high frame rate imaging
sensor was introduced. The intensity of thelight encoded by the compressive sensing
technique and a gigahertz range carrier
wave generator was illuminated the object.
The waveform of the carrier wave can bereconstructed with few frames by thecompressive sensing technique. Resultantly,
3D image of the object was extracted fromthe phase of the carrier wave in very short
time.

60

[OPTM-3]  11:00-12:00
OPTM Session 3

Chair: Masaki Michihata
The Univesity of Tokyo

Chair: Motoharu Fujigaki
University of Fukui‌2‌

Kateryna Zelenska , Olga Tkach ,Serge Zelensky‌2‌, Olexandr Kolesnik‌2‌, Toru Aoki‌1‌‌1‌
Research Institute of Electronics, Shizuoka
University, ‌2‌Faculty of Physics, Taras
Yukitoshi Otani‌1‌, Toru Yoshizawa‌2,‌
Shevchenko National University of Kyiv
Takashi Hatsuzawa‌3,‌ Rainer Tutsch‌4‌‌1‌‌
Utsunomiya University, ‌2NPO
3D association, Computer simulation is performed for pulsed‌3‌‌
laser heating of a surface with
Tokyo Insitute of Technology, ‌4Technische
submicrometer-sized truncated-coneUniversität Braunschweig
shaped peaks and holes. Transient
OPTM-1-02  15:45
Invited temperature field is calculated, and thevisual appearance of the surface roughness
Single pixel imaging and its
elements is modeled with the laser-induced
applications
thermal emission.
Kouichi Nitta
Kobe University
In this presentation, the principle of SPI is
explained. In the SPI, two dimensional
spatial modulation for optical signals is an
important operations. A procedure forrenewal of the modulation has been
proposed. This procedure with spatial
pattern shift is suitable for a some specificimplementation based on SPI. Especially, it isuseful for imaging of a target moving at aconstant velocity. This procedure is
introduced and usefulness of it is discussed.

OPTM-1-01  15:30
Openning remarks[OPTM-2]  9:00-10:15
OPTM Session 2

OPTM-2-01  9:00
Invited OPTM-3-01  11:00
InvitedPreparation of Luminescent Si
3D profile measurement of openings
Nanocrystals from Rice Husks
with optical caliper
Kimihisa Matsumoto‌1‌, So Ito‌1‌,
Kazuhide Kamiya‌1‌, Mitsuru Inada‌2‌,
Hidehiro Yasuda‌3‌‌1‌‌
Toyama Prefectural University, ‌2Kansai
University, ‌3‌Osaka University
Luminescent Si nanocrystals were preparedfrom rice husks and the optical properties
and structure analysis were studied. By thetransmission electron microscopeobservation of the Si powder from ricehusks, aggregates that are composed of Si
nanoparticles with crystalline structure wereconfirmed. Room temperature PL with nearinfrared-red regions were observed from theSi nanocrystals.

OPTM-2-02  9:30
Simulation Study on Diameter
Measurement Technique for
Submicrometer-sized Tapered Fibers
with Standing Wave Illumination
Sojiro Murakami‌1‌, Shotaro Kadoya‌2‌,
Masaki Michihata‌1‌, Satoru Takahashi‌2‌‌1‌
School of Engineering, Department ofPrecision Engineering, The University of Tokyo,‌2‌
Research Center for Advanced Science andTechnology, The University of Tokyo
In this research, we propose an in-process
measurement method of the diameter ofsub-micro-optical fiber such as a tapered
optical fiber. The proposed technique isbased on analyzing optically scattered light
generated by standing wave illumination.
From the result of numerical simulation
based on finite element method (FEM), it
was revealed that the optical fiber of 100 nm
in diameter can be evaluated with thestanding wave illumination.

OPTM-2-03  9:45
Shape Control Using HologramAssisted Talbot Lithography

Lianhua Jin‌1‌, Takuma Ashizawa‌1‌,
Toru Yoshizawa‌2‌‌1‌
University of Yamanashi, ‌2‌NPO 3D Associates
We developed an optical caliper formeasurement of 3D profiles of openings. It
consists of a disk beam generator and acamera. The 3D inner profile of an art craft
was measured with this system.

OPTM-3-02  11:30
Modeling the dynamic optical gain in a
3D printed waveguide due to polymer
swelling
Kunal Sharma‌1‌, Waleed S Mohammed‌2,‌
Tanujjal Bora‌1‌‌1‌
Asian Institute of Technology, ‌2‌Bangkok
University
A theoretical model is developed to study the
dynamic optical gain in the transmitted
optical power through a 3D printed
photopolymer waveguide. The developedmodel shows that the solvent molecules
diffused in the photopolymer and develops aswelling layer that acts as cladding. The
formation of the cladding layer results in a
reduction of surface scattering losses and anincrease in the transmitted optical power.

OPTM-3-03  11:45
Single-step fabrication of microfiber
long period grating structure througha modulated arc discharge process
Mohammad Javad Khodarahmi‌2‌,
Pedram Hosseini‌1‌, Mohmmad Kazemzadeh‌2‌,
Hamidreza Karimi-Alavijeh‌2‌‌1‌‌
Polytechnic University of Turin, ‌2The
Universityof Isfahan
We present a novel approach to fabricate
optical microfiber long period grating(MF-LPG) structures through a single-step
technique. This method is based on heating
and pulling single-mode fiber optics via a
modulated arc discharge process.

Naoki Ura‌1,‌ Yasuhiro Mizutani‌1‌, Ryu Ezaki‌1‌,
Tsutomu Uenohara‌1‌, Yoshihiko Makiura‌2‌,
Yasuhiro Takaya‌1‌[OPTM-4]  13:30-15:00‌1‌‌
Osaka University, ‌2Kurabo
Industries Ltd.
OPTM Session 4
To improve the processing flexibility of Talbot Chair: Lianhua Jinlithography, we studied the learning of CNN
University of Yamanashi
to improve the accuracy of the method tocontrol the period of the structure by
OPTM-4-01  13:30
hologram-assisted Talbot lithography.

OPTM-2-04  10:00
Hologram optimized in holographic
laser processing system
Honghao Zhang‌1,‌ Satoshi Hasegawa‌1‌,
Haruyoshi Toyoda‌2‌, Yoshio Hayasaki‌1‌‌1‌
The university of Utsunomiya, ‌2‌Central
Research Laboratory, Hamamatsu Photonics
K.K.
We proposed an optimization method of ahologram in holographic laser processing.
This method provides the holographic laser
processing system with high-stability, thatis, the ability to dynamically compensate forsystem imperfections, and has the ability to
be suitable for a wide range of highprecision, high-throughput applications in
the field of 3D manufacturing.

InvitedNoise floor comparison of opticaldisplacement measuring
interferometer between air andvacuum environments
Masato Aketagawa‌1‌, Kousuke Sakasai‌1‌,
Masato Higuchi‌1,‌ Dong Wei‌1‌,
Thanh Dong Nguyen‌2‌‌1‌
Nagaoka University of Technology, ‌2‌Hanoi
University of Science and Technology
In this presentation, we discuss noise floor
comparisons of an optical displacement
measuring interferometer between air andvacuum environments. A heterodyne
interferometer and its phasemeter, with theresolution of 10-6 radian, implemented in afield programmable gate array (FPGA) areutilized for the comparison. A heterodyne
laser source consists of a frequency
stabilized He-Ne laser and two acoustic
optic modulators (AOMs).

OPIC 2021・19-22 April, 2021

C on f e r e n c e P r o g r a m

OPTM

OPTM-4-02  14:00
Radius measurement of large aperturelong-focal-length lens using
computer-generated hologramJian-Peng Cui, Zhi-Gang Li, Zhen-Jun Bao,
Heng Zhao, Ning Zhang, Jie Liu, Di-Long Wu,
Hua Xu, Ping Ma
Chengdu Fine Optical Engineering ResearchCenterIn this paper, we will present a method ofusing 450 mm × 450 mm transmission
computer-generated hologram (CGH) tomeasure the radius of curvature of 440 mm
× 440mm large aperture long-focal-lengthlens.

OPTM-5-03  16:30
The FDTD analysis for diffraction
limited microgroove structure withstanding wave illumination for therealization of coherent structured
illumination microscopy
Yizhao Guan‌1‌, Masahiro Kume‌1‌,
Shotaro Kadoya‌2,‌ Masaki Michihata‌2,1‌,
Satoru Takahashi‌2‌‌1‌
Department of Precision Engineering, The
University of Tokyo, ‌2‌Research Center for
Advanced Science and Technology (RCAST),The University of Tokyo
In this research, the depth measurement of
microgroove structures with coherent
Structured Illumination Microscopy (SIM) is
studied. FDTD analysis is applied forobserving the near-field response of
microgroove narrower than the diffraction
limit under the standing-wave illumination.
The near-field phase shows depth
dependency in this analysis.

Thursday, 22 April[OPTM-6]  9:00-10:30
OPTM Session 6[OPTM-7]  11:00-12:00
OPTM Session 7

Chair: Nathan Hagen
Utsunomiya University

Chair: Kazuhiko Oka
Hirosaki University

OPTM-6-01  9:00
InvitedFourier Demodulation Approach for a
Rotating Polarizer Analyzer
Polarimeter for Retardance
Measurements

OPTM-7-01  11:00
InvitedExtended range dynamic calibration
for channeled spectropolarimetry

Nathan Hagen‌1‌, Benjamin D. Chrysler‌2‌‌1‌
Utsunomiya University, ‌2‌University of Arizona
David Ignacio Serrano Garcia,
We show how to extending the temperature
Francisco Joel Cervantes Lozano,
range of channeled spectropolarimetry’s
Geliztle Alejandra Parra Escamilla,
dynamic calibration method to handle
Jorge L. Flores Nuñez,
virtually all practical scenarios. This is
Guillermo Garcia Torales
demonstrated by running a channeled
University Center of Exact Sciences andspectropolarimeter continuously over a
OPTM-4-03  14:15
Engineering (CUCEI) - Electronics Department - temperature change of 40 degC, achieving
University of Guadalajara
stable reconstruction of the spectrallyOut-of-plane displacement
We present a demodulation approach for a
resolved polarization state over this entire
measurement using laser parallel
rotating polarizer-analyzer polarimeter
range.
fringes generated in camera withdedicated to retardance measurements.
diffraction grating
Through the Mueller matrix approach and
OPTM-7-02  11:30
Wei Jiang, Takuya Hara, Motoharu Fujigaki
the theoretical Fourier transform, we
University of Fukui
Ellipsometric characterizations of
OPTM-5-04  16:45
developed a demodulation algorithm
For measuring out-of-plane displacement
individual nanoform structuresconsidering the two linear polarizers’ initial
Resolution
evaluationofdisplacementwith phase analysis method, a diffraction
Tim Kaeseberg‌1‌, Jana Grundmann‌1,‌orientation as calibration. We present
measuringinterferometerwith‌1‌grating was used to generated laser parallel
Wurm‌1‌,experimental results showing the feasibility Sven Teichert ,‌1Matthias
sinusoidal
phase
modulation
andfringes in a camera. A green laser, aThomas Siefke ,2‌, Stefanie Kroker‌1,3‌,of our proposal.
modifiedphase-locked
loop
diffraction grating and an industrial camera
Bernd Bodermann‌1‌
Masato Higuchi, Tomohiro Sowa, Dong Wei,
‌1‌
were used as experimental devices. Phase
Physikalisch-Technische Bundesanstalt
OPTM-6-02  9:30
difference was calculated by images before Masato Aketagawa
Braunschweig, ‌2‌Institute of Applied Physics,
Nagaoka University of Technology
and after displacement. Laser parallel
RGB full Stokes imaging by color
Abbe Center of Photonics, Friedrich-Schiller‌
A resolution evaluation of displacement
fringes can be generated in a camera andpolarization cameras
for Emerging
Universität Jena, ‌3Laboratory
measuring interferometer using a sinusoidal Yukitoshi Otani, Shuhei Shibata, Nathan Hagen Nanometrology, Technische Universität
displacement was successfully measured.
phase modulation (SPM) and a modified
Utsunomiya University
Braunschweig
OPTM-4-04  14:30
Invited phase-locked loop (PLL) is discribed in this RGB full Stokes imaging by color polarization We constructed an imaging Mueller matrix
presentation. Displacement measuring
camerasellipsometer for measurements in both
Optically smooth and optically roughinterferometer with frequency stabilized lighttransmission and reflection. Additionally, we
surfaces in 3D profilometry
source has advantages of high resolution
designed, fabricated, and characterized
OPTM-6-03  9:45
Pavel Pavlicek
and traceable to the definition, and thenanostructures with simple shapes to
Palacky University Olomouc
combination of the SPM and modified PLL is Large scale thin film thickness
examine the link between Mueller matrix
The operation of optical 3D measurement
uniformity extraction based on
one of the interpolation methods.
elements and geometrical features.
methods depends on whether the measured
dynamic spectroscopic ellipsometry
surface is optically smooth or rough. We
Gukhyeon Hwang, Sukhyun Choi,
OPTM-7-03  11:45
present an analysis on which conditons the
Vamara Dembele,
surface is classified as one or the other.
Optical and Anisotropic Stress
Saeid Kheiryzadehkhanghah,Properties of Flexible (Ta2O5/SiO2)2
Inho Choi, Chung Song Kim, Daesuk Kim
Anti-reflection Film Deposited by[OPTM-5]  15:30-17:00
Jeonbuk National University
E-gun Evaporation with Ion-beam
OPTM Session 5This paper describes a new approach for
Assisted Deposition
Chair: Kazuhide Kamiya
large-scale thin film thickness mapping
Kun-Hong Chen, Chen Hsi Chao, Chen Sheng
Toyama Prefectural University
based on dynamic spectroscopic
Bin, Chen Guan Yu, Wu Tsung Tse, Kuo Chouellipsometry. The proposed system canKaiprovide a real time thin film uniformity
OPTM-5-01  15:30
Invitedmeasurement capability with high precision. National Yunlin University of Science andMid-infrared (LWIR) Hyperspectral
Technology
We expect the proposed scheme can be
camera for on-site analysis
The research proposal was used tantalum
applied for various large-scale thin film
Ichiro Ishimaru
deposition process applications such as roll pentoxide (Ta2O5) and silicon dioxide (SiO2)
Kagawa University
as the high and low refractive index for theto roll manufacturing where real time
For on-site analysis in the remote world, we
multilayer anti-reflection (AR) films were
process uniformity monitoring becomes
proposed 3 kinds of Fourier transform
deposited on a flexible polyethylene
crucial.
spectroscopic imager whose opticalterephthalate (PET) by electron-beamconfiguration were the near-common-path
OPTM-6-04  10:00
Invited evaporator with ion-beam assisted
phase-shift interferometer. And to measuredeposition (IAD). The optical and stress
Spectroscopic polarizationsuspending solutions and biological samples
properties of these multilayer (Ta2O5/SiO2)2
measurement
andcontrolusing
without preparations like smart toiles andfilms were investigated.
channeledspectrum
non-invasive blood glucose sensors, we
Kazuhiko OKA‌1,‌ Keisaku YAMANE‌2‌,
proposed 2 types of the ultrasonic-assisted
Moritsugu SAKAMOTO‌3‌, Ryuji MORITA‌2‌
spectroscopy.
‌1‌‌
Hirosaki University, ‌2Hokkaido
University,‌3‌
Nagaoka University of Technology
OPTM-5-02  16:00
InvitedPolarization measurement and control using
Fringe Projection Method for 3D Shapechanneled spectrum has several unique
Measurement Using Linear LED Device
features and useful for various spectroscopic
and Cylindrical Lens Array
instruments. Its basic features and several
Motoharu Fujigaki, Takuya Hara
applications are described in this
University of Fukui
presentation.
Recently, it is required to improve the fringe
projection device to develop a compact andfast 3D shape measurement. In this study, afringe projection method using a linear LED
device and a cylindrical lens array to
improve the LSSM is proposed. In the caseof a conventional light-source-stepping
method, the half of the emitted power iswasted at the grating plate.

OPIC 2021・19-22 April, 2021

ProgramWednesday, 21 April

61

C on f e r e n c e P r o g r a m

OPTM
Poster[OPTM-P]
Poster Session

Program

OPTM-P-01
Calibration of the astigmatism errors
induced by misalignment of quadriwave lateral shearing interferometerYiwei Si, Ke Liu, Yanqiu Li, Peng Qin,
Hui ZhongBeijing Institute of Technology
In this paper, the astigmatism errors inducedby misalignment of quadri-wave lateralshearing interferometer are analyzed using
the optical wave interference and wavefront
reconstruction theory. This paper can
provide technical support for the alignmentof QWLSI with small shearing ratio and highprecision.

OPTM-P-02
Quality Map guided parallel Phase
unwrapping algorithm for multi-lateralshearing interferometry
Liang Wang, Ke Liu, Yanqiu Li
Beijing Institute of Technology
The quality map guided algorithm is areliable algorithm in the phase unwrappingof two-dimensional interferogram. In thispaper, the computer unified device
architecture (CUDA) programming platform
is used to realize the parallel processing of
the phase derivative variance map, themaximum phase gradient map, and thepseudo-correlation quality map, in order toimprove the speed of phase unwrapping.

OPTM-P-03
Fast calibration for Star test
polarimetry via polarization orthogonalbasis mapping
Tianlei Ning, Guodong Zhou, Jiazhi Wang,
Yanqiu Li
School of Optics and Photonics, Beijing
Institute of Technology
This paper develops a fast calibration
method for Star test polarimetry bymeasuring three intensity distribution oforthogonal polarization state and an intensity
distribution of left-handed circularpolarization to rapidly calibrate thetheoretical model.

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OPIC 2021・19-22 April, 2021