Woon-Seng Choong,Stephen E Holland
Woon-Seng Choong
We present a novel structure for the back-side readout silicon photomultipler (SiPM). Current SiPMs are front-illuminated structures with front-side readout, which have relatively small geometric fill factor leading to degradation in their ...
LED-Based Optical Device for Chronic In Vivo Cerebral Blood Volume Measurement [0.03%]
基于LED的用于慢性在体脑血量测定的光学器件
Marshall P Cox,Hongtao Ma,Matthias E Bahlke et al.
Marshall P Cox et al.
We demonstrate a reflectivity-based cerebral blood volume sensor comprised of surface-mount light-emitting diodes on a flexible substrate with integrated photodetectors in a form factor suitable for direct brain contact and chronic implanta...
Demonstration of a 140-GHz 1-kW Confocal Gyro-Traveling-Wave Amplifier [0.03%]
一种140GHz 1kW共焦回旋行波放大器的概念验证实验
Colin D Joye,Michael A Shapiro,Jagadishwar R Sirigiri et al.
Colin D Joye et al.
The theory, design, and experimental results of a wideband 140-GHz 1-kW pulsed gyro-traveling-wave amplifier (gyro-TWA) are presented. The gyro-TWA operates in the HE(06) mode of an overmoded quasi-optical waveguide using a gyrating electro...