Spatial-Mode Demultiplexer Using 1550-Nm-Band Angularly Multiplexed Volume Holograms

2018 ◽  
Author(s):  
Satoshi Shinada ◽  
Shimpei Shimizu ◽  
Taijun Shiba ◽  
Taketoshi Takahata ◽  
Atsushi Okamoto ◽  
...  
Keyword(s):  
Spatial Mode ◽  
Volume Holograms

Spatial mode exchange technique using volume holograms with a random optical diffuser for reduction of crosstalk

2021 ◽  
Author(s):  
Shuanglu Zhang ◽  
Atsushi Okamoto ◽  
Taijun Shiba ◽  
Hotaka Hayashi ◽  
Kazuhisa Ogawa ◽  
...  
Keyword(s):  
Spatial Mode ◽  
Volume Holograms ◽  
Optical Diffuser ◽  
Exchange Technique

scholarly journals Spatial mode demultiplexing technique using angularly multiplexed volume holograms with a phase plate

2017 ◽  
Vol 56 (9S) ◽  
pp. 09NA05
Author(s):  
Shimpei Shimizu ◽  
Atsushi Okamoto ◽  
Fumiya Mizukawa ◽  
Kazuhisa Ogawa ◽  
Akihisa Tomita ◽  
...  
Keyword(s):  
Phase Plate ◽  
Spatial Mode ◽  
Volume Holograms

Examining the spatial mode in the early market for electric vehicles adoption: evidence from 41 cities in China

2021 ◽  
pp. 1-11
Author(s):  
Zhengxia He ◽  
Yanqing Zhou ◽  
Xin Chen ◽  
Jianming Wang ◽  
Wenxing Shen ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Spatial Mode ◽  
Early Market

scholarly journals Spatial Mode Correction of Single Photons Using Machine Learning

2021 ◽  
pp. 2000103
Author(s):  
Narayan Bhusal ◽  
Sanjaya Lohani ◽  
Chenglong You ◽  
Mingyuan Hong ◽  
Joshua Fabre ◽  
...  
Keyword(s):  
Machine Learning ◽  
Single Photons ◽  
Spatial Mode

scholarly journals Inverse design of an ultra-compact broadband optical diode based on asymmetric spatial mode conversion

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Francois Callewaert ◽  
Serkan Butun ◽  
Zhongyang Li ◽  
Koray Aydin
Keyword(s):  
Mode Conversion ◽  
Inverse Design ◽  
Spatial Mode ◽  
Optical Diode

scholarly journals Titanium-Based Microbolometers: Control of Spatial Profile of Terahertz Emission in Weak Power Sources

2020 ◽  
Vol 10 (10) ◽  
pp. 3400
Author(s):  
Linas Minkevičius ◽  
Liang Qi ◽  
Agnieszka Siemion ◽  
Domas Jokubauskis ◽  
Aleksander Sešek ◽  
...  
Keyword(s):  
Imaging Techniques ◽  
Dark Field ◽  
Spatial Mode ◽  
Contrast Imaging ◽  
Optical Components ◽  
Broadband Antenna ◽  
Power Sources ◽  
Precise Control ◽  
Imaging And Spectroscopy ◽  
And Control

Terahertz (THz) imaging and spectroscopy set-ups require fine optical alignment or precise control of spatial mode profile. We demonstrate universal, convenient and easy-to-use imaging—resonant and broadband antenna coupled ultrasensitive titanium-based—dedicated to accurately adjust and control spatial mode profiles without additional focusing optical components of weak power THz sources. Versatile operation of the devices is shown using different kinds of THz—electronic multiplier sources, optical THz mixer-based frequency domain and femtosecond optoelectronic THz time-domain spectrometers as well as optically pumped molecular THz laser. Features of the microbolometers within 0.15–0.6 THz range are exposed and discussed, their ability to detect spatial mode profiles beyond the antennas resonances, up to 2.52 THz, are explored. Polarization-sensitive mode control possibilities are examined in details. The suitability of the resonant antenna-coupled microbolometers to resolve low-absorbing objects at 0.3 THz is revealed via direct, dark field and phase contrast imaging techniques as well.

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