| Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
| IEICE-MRIS, MMS |
2024-12-06
11:20 |
Ehime |
Ehime Univ. (CITE)
(Primary: On-site, Secondary: Online) |
Evaluation of robustness against noise in super-resolution complex amplitude measurements using free-space optical propagation and virtual phase conjugation
Ippo Matsushita, Atsushi Okamoto, Akihisa Tomita (Hokkaido Univ.) |
Optical measurement, a crucial technique employed in diverse fields such as three-dimensional biological
tissue imaging... [more] |
MMS2024-41
pp.25-31 |
| IEICE-OCS, IEICE-OFT, IEE-CMN, BCT [detail] |
2023-11-09
16:45 |
Kyoto |
(Primary: On-site, Secondary: Online) |
Phase Compensation Method in Mode Selective Switch Using Volume Holographic De-multiplexer
Yui Yoshikata, Atsushi Okamoto, Akihisa Tomita (Hokkaido Univ.) |
In mode-division multiplex (MDM) communication using few-mode fiber, it is expected to realize ROADM by introducing mode... [more] |
|
| AIT, ME, MMS, IEICE-IE, IEICE-ITS [detail] |
2022-02-21
14:40 |
Online |
online |
Effect of post-exposure time on diffraction efficiency of volume holograms during recording
Yuya Kuroda, Atsushi Okamoto (Hokkaido Univ.), Satoshi Shinada, Yuta Goto (NICT), Akihisa Tomita (Hokkaido Univ.) |
To realize the mode division multiplexing transmission, we have proposed a volume holographic mode de-multiplexer (VHDM)... [more] |
MMS2022-13 ME2022-38 AIT2022-13
pp.67-70 |
| AIT, ME, MMS, IEICE-IE, IEICE-ITS [detail] |
2022-02-21
15:05 |
Online |
online |
Mode diffusion technique for reduction of crosstalk in volume holographic mode demultiplexer
Shuanglu Zhang, Atsushi Okamoto, Akihisa Tomita (Hokkaido Univ.) |
Volume holographic demultiplexers (VHDMs) utilize angularly multiplexed volume holograms to separate multiplexed spatial... [more] |
MMS2022-14 ME2022-39 AIT2022-14
pp.71-75 |
| AIT, ME, MMS, IEICE-IE, IEICE-ITS [detail] |
2022-02-21
15:20 |
Online |
online |
Resolution in 3D super-resolution projection using single-lens spatial cross modulation method
Xinruinan Zhang, Atsushi Okamoto (Hokkaido Univ.), Hisatoshi Funakoshi (Gifu Univ.), Shuanglu Zhang, Akihisa Tomita (Hokkaido Univ.) |
Spatial cross modulation (SCMM) can regenerate optical complex amplitudes by combining a single spatial light modulator ... [more] |
MMS2022-15 ME2022-40 AIT2022-15
pp.77-80 |
| BCT, IEICE-OFT, IEICE-OCS, IEE-CMN [detail] |
2020-11-12
16:25 |
Online |
Online |
Wave front compensation method for output signal in volume hologram demultiplexer
Hotaka Hayashi, Atsushi Okamoto (Hokkaido Univ.), Taketoshi Takahata (OPTOQUEST), Satoshi Shinada, Yuta Goto, Naoya Wada (NICT), Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
(Advance abstract in Japanese is available) [more] |
|
| HI, IEICE-IE, IEICE-ITS, MMS, ME, AIT [detail] |
2020-02-28
13:00 |
Hokkaido |
Hokkaido Univ.
(Cancelled) |
Influence of the distance between the observation plane and the focal plane on the resolution in tomographic imaging using VPC
Jiang Mengying, Atsushi Okamoto, Satosi Kawashima, Kazuhisa Ogawa, AkihisaTomita (Hokkaido Univ.) |
[more] |
MMS2020-30 HI2020-30 ME2020-58 AIT2020-30
pp.267-269 |
| HI, IEICE-IE, IEICE-ITS, MMS, ME, AIT [detail] |
2020-02-28
13:15 |
Hokkaido |
Hokkaido Univ.
(Cancelled) |
Numerical analysis of relationship between light utilization efficiency and modulation accuracy in complex amplitude modulation based on iterative spatial cross modulation
Tomohiro Maeda, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
[more] |
MMS2020-31 HI2020-31 ME2020-59 AIT2020-31
pp.271-276 |
| ME, IEICE-IE, IEICE-ITS, MMS, HI, AIT [detail] |
2019-02-19
11:30 |
Hokkaido |
Hokkaido Univ. |
Improvement of noise separation accuracy in image reconstruction in virtual phase conjugation based optical tomography
Sota Nagayoshi, Atsushi Okamoto (Hokkaido Univ.), Yuta Goto (Fukui Univ.), Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
Virtual phase conjugation based optical tomography (VPC-OT) realizes single-shot three-dimensional (3D) measurement. In ... [more] |
MMS2019-11 HI2019-11 ME2019-33 AIT2019-11
pp.71-74 |
| ME, IEICE-IE, IEICE-ITS, MMS, HI, AIT [detail] |
2019-02-20
13:00 |
Hokkaido |
Hokkaido Univ. |
Analysis on Basic Operation of Virtual Shift Method for Accuracy Improvement of Holographic Diversity Interferometry
Nobuhiro Yamagishi, Atsushi Okamoto, Tomohiro Maeda (Hokkaido Univ.), Jin Nozawa (Aisin Seiki), Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
Holographic diversity interferometry (HDI) enables single-shot phase measurement by using two image sensors. However, mi... [more] |
MMS2019-18 HI2019-18 ME2019-40 AIT2019-18
pp.197-200 |
| ME, IEICE-IE, IEICE-ITS, MMS, HI, AIT [detail] |
2019-02-20
13:45 |
Hokkaido |
Hokkaido Univ. |
Accuracy improvement of phase modulated signal by calibrating spatial light modulator
Tomohiro Maeda, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
The modulation accuracy of phase-only spatial light modulators (SLMs) decreases by the distortion of the phase response ... [more] |
MMS2019-21 HI2019-21 ME2019-43 AIT2019-21
pp.209-213 |
| BCT, IEICE-OCS, IEICE-OFT, IEE-CMN [detail] |
2018-11-09
15:45 |
Okayama |
Kurashiki-City-Geibunnkan |
Separation Characteristics of Volume Holographic Spatial Mode Demultiplexer at 1550 nm Wavelength
Satoshi Shinada (NICT), Shimpei Shimizu, Taijun Shiba (Hokkaido Univ.), Taketoshi Takahata (Optoquest), Atsushi Okamoto (Hokkaido Univ.), Naoya Wada (NICT) |
[more] |
|
| IEICE-ITS, IEICE-IE, MMS, HI, ME, AIT [detail] |
2018-02-16
13:00 |
Hokkaido |
Hokkaido Univ. |
Experiment on digital image multiplexing/demultiplexing using virtual phase conjugation for high density holographic memory
Yuta Goto, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
We experimentally implemented and proved the concept of the multiplexing and demultiplexing in digital images using VPC,... [more] |
MMS2018-24 HI2018-24 ME2018-24 AIT2018-24
pp.261-265 |
| CE, MMS, AIT, HI, ME, IEICE-ITS, IEICE-IE [detail] |
2017-02-20
13:30 |
Hokkaido |
Hokkaido Univ. |
Characterization of multiplexing technique using virtual phase conjugation for high density holographic memory
Yuta Goto, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
In the holographic memory, the achievable multiplexing number of holograms and the recording density are inherently rest... [more] |
MMS2017-25 CE2017-25 HI2017-25 ME2017-49 AIT2017-25
pp.149-154 |
| CE, MMS, AIT, HI, ME, IEICE-ITS, IEICE-IE [detail] |
2017-02-20
13:45 |
Hokkaido |
Hokkaido Univ. |
Experiment on Virtual Shift Method for Reduction of Alignment Error in Holographic Diversity Interferometry
Nobuhiro Yamagishi, Atsushi Okamoto, Jin Nozawa, Yuta Goto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
In phase measurement using Holographic Diversity Interferometry (HDI), misalignment of two holograms captured by two ima... [more] |
MMS2017-26 CE2017-26 HI2017-26 ME2017-50 AIT2017-26
pp.155-158 |
| CE, MMS, AIT, HI, ME, IEICE-ITS, IEICE-IE [detail] |
2017-02-20
14:15 |
Hokkaido |
Hokkaido Univ. |
Experiment on spatial mode separation and conversion technique using volume hologram
Fumiya Mizukawa, Atsushi Okamoto, Yuta Goto, Shimpei Shimizu, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
[more] |
MMS2017-27 CE2017-27 HI2017-27 ME2017-51 AIT2017-27
pp.159-163 |
| CE, MMS, AIT, HI, ME, IEICE-ITS, IEICE-IE [detail] |
2017-02-20
14:30 |
Hokkaido |
Hokkaido Univ. |
Experiment on Dual-Wavelength Method toward Spatial Mode De-Multiplexing with Volume Hologram in Optical Communication Wavelength Band
Shimpei Shimizu, Atsushi Okamoto, Fumiya Mizukawa, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.), Taketoshi Takahata (OPTOQUEST), Satoshi Shinada, Naoya Wada (NICT) |
In the mode division multiplexing transmission, the spatial mode de-multiplexing technique is required on the receive si... [more] |
MMS2017-28 CE2017-28 HI2017-28 ME2017-52 AIT2017-28
pp.165-170 |
| HI, IEICE-IE, AIT, IEICE-ITS, ME, MMS, CE [detail] |
2016-02-23
10:30 |
Hokkaido |
Hokudai |
Virtual interferogram-generation method for high accurate phase detection using only two holograms
Jin Nozawa, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
[more] |
MMS2016-34 CE2016-34 HI2016-34 ME2016-67 AIT2016-34
pp.303-307 |
| HI, IEICE-IE, AIT, IEICE-ITS, ME, MMS, CE [detail] |
2016-02-23
10:45 |
Hokkaido |
Hokudai |
Basic operation simulation of novel 3D display based on high-speed analysis method for volume hologram
Hisatoshi Funakoshi (Gifu Univ.), Atsushi Okamoto (Hokkaido Univ.), Atsushi Shibukawa (CIT), Yuta Kan, Hiroki Sakuma (Hokkaido Univ.) |
We have proposed a 3D display using the spatial cross modulation method (SCMM), which is a novel light complex amplitude... [more] |
MMS2016-35 CE2016-35 HI2016-35 ME2016-68 AIT2016-35
pp.309-313 |