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Waveguide-integrated plasmonics is a growing field with many innovative concepts and demonstrated devices in the visible and near-infrared. Here, we extend this body of work to the mid-infrared for the application of surface-enhanced…

光学 · 物理学 2018-12-05 Daniel A. Mohr , Daehan Yoo , Che Chen , Mo Li , Sang-Hyun Oh

This work presents a lightweight super-resolution (LiteSR) neural network for depth and intensity images acquired from a consumer-grade single-photon avalanche diode (SPAD) array with a 48x32 spatial resolution. The proposed framework…

图像与视频处理 · 电气工程与系统科学 2026-03-31 Zhenya Zang , Xingda Li , David Day Uei Li

Enhancing scene understanding in adverse visibility conditions remains a critical challenge for surveillance and autonomous navigation systems. Conventional imaging modalities, such as RGB and thermal infrared (MWIR / LWIR), when fused,…

机器学习 · 计算机科学 2025-11-25 Muhammad Ishfaq Hussain , Ma Van Linh , Zubia Naz , Unse Fatima , Yeongmin Ko , Moongu Jeon

The future upgrade of Keck II telescope's adaptive optics system will include a pyramid wavefront sensor working in the near-infrared (J and H band). It will benefit from the recently developed avalanche photodiode arrays, specifically the…

天体物理仪器与方法 · 物理学 2023-01-18 Cédric Plantet , Guido Agapito , Christophe Giordano , Simone Esposito , Peter Wizinozich , Charlotte Bond

The short-wave infrared (SWIR) wavelength, especially 1.55 um, has attracted significant attention in various areas such as high-speed optical communication and LiDAR systems. Avalanche photodiodes (APDs) are a critical component as a…

Single photon detection is important for a wide range of low-light applications, including quantum information processing, spectroscopy, and light detection and ranging (LiDAR). A key challenge in these applications has been to integrate…

Single-photon avalanche diode (SPAD) arrays have transformed optical imaging by enabling photon-counting sensitivity, picosecond resolution, and high frame-rate operation. These capabilities, however, have remained confined to the visible…

Photodetectors that are sensitive in shortwave infrared (SWIR) range (1 um - 2 um) are of significant interest for applications in 3D, night and adverse weather imaging, machine vision and autonomous driving, among others. Currently…

We demonstrate a low noise short wavelength infrared (SWIR) Sb based type II superlattice (T2SL) avalanche photodiodes (APD). The SWIR GaSb/(AlAsSb/GaSb) APD structure was designed based on impact ionization engineering and grown by…

应用物理 · 物理学 2021-04-02 Arash Dehzangi , Jiakai Li , Manijeh Razeghi

In this work we investigate operation in the Geiger mode of the new single photon avalanche photo diode (SPAD) SAP500 manufactured by Laser Components. This SPAD is sensitive in the range 400-1000nm and has a conventional reach-through…

仪器与探测器 · 物理学 2015-03-14 M. Stipcevic , H. Skenderovic , D. Gracin

We present a novel structured light technique that uses Single Photon Avalanche Diode (SPAD) arrays to enable 3D scanning at high-frame rates and low-light levels. This technique, called "Single-Photon Structured Light", works by sensing…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Varun Sundar , Sizhuo Ma , Aswin C. Sankaranarayanan , Mohit Gupta

Future space-based far-infrared astrophysical observatories will require exquis-itely sensitive detectors consistent with the low optical backgrounds. The PRobe far-Infrared Mission for Astrophysics (PRIMA) will deploy arrays of thousands…

The Cassiop\'ee project aims to develop the key technologies that will be used to deploy very high-performance Adaptive Optics for future ELTs. The ultimate challenge is to detect earth-like planets and characterize the composition of their…

天体物理仪器与方法 · 物理学 2024-06-04 Jean-Luc Gach , Piero Bruno , Julien Charton , Philippe Feautrier , Thierry Fusco , Benoit Neichel , Jean-François Sauvage

SINFONI, the SINgle Faint Object Near-infrared Investigation, is an instrument for the Very Large Telescope (VLT), which will start its operation mid 2002 and allow for the first time near infrared (NIR) integral field spectroscopy at the…

天体物理学 · 物理学 2015-06-24 S. Mengel , F. Eisenhauer , M. Tecza , N. Thatte , C. Roehrle , K. Bickert , J. Schreiber

Ultra-sensitive short-wave infrared (SWIR) photon detection is a crucial aspect of ongoing research in quantum technology. However, developing such detectors on a CMOS-compatible silicon technological platform has been challenging due to…

应用物理 · 物理学 2024-11-15 P. Sudha , S. Miyagawa , A. Samanta , D. Moraru

Single-photon detection is an invaluable tool for many applications ranging from basic research to consumer electronics. In this respect, the Single Photon Avalanche Diode (SPAD) plays a key role in enabling a broad diffusion of these…

仪器与探测器 · 物理学 2021-02-05 Angelo Gulinatti , Francesco Ceccarelli , Massimo Ghioni , Ivan Rech

A near-infrared (NIR) measurement based on digital orthogonal vector lock-in amplifier (LIA) is present in this paper. NIR sky background radiation is very weak. To detect the signals obscured by noise, the best way achieved is to use a…

天体物理仪器与方法 · 物理学 2019-09-04 Qi-Jie Tang , Yi-hao Zhang , Shu-cheng Dong , Jin-ting Chen , Feng-xin Jiang , Zhi-yue Wang , Ya-qi Chen , Hong-fei Zhang , Jian Wang

Mid-wave infrared (MWIR) cameras for large number pixels are extremely expensive compared with their counterparts in visible light, thus, super-resolution imaging (SRI) for MWIR by increasing imaging pixels has always been a research…

图像与视频处理 · 电气工程与系统科学 2025-03-19 Xiao-Peng Jin , Qing Zhao , Xue-Feng Liu , An-Dong Xiong

Low-noise lasers are of central importance in a wide variety of applications, including high spectral-efficiency coherent communication protocols, distributed fibre sensing, and long distance coherent LiDAR. In addition to low phase noise,…