A novel SWIR detector with an ultra-high internal gain and negligible excess noise

2007 ◽  
Author(s):  
H. Mohseni ◽  
O. G. Memis ◽  
S. C. Kong ◽  
A. Katsnelson ◽  
W. Wu
Keyword(s):  
Excess Noise ◽  
Internal Gain

Infrared Avalanche Photodiode Detectors

2017 ◽  
Vol 67 (2) ◽  
pp. 159 ◽  
Author(s):  
Anand Singh ◽  
Ravinder Pal
Keyword(s):  
Avalanche Photodiode ◽  
Fast Response ◽  
Optical Signal ◽  
Excess Noise ◽  
Space Applications ◽  
High Quantum Efficiency ◽  
Avalanche Gain ◽  
Internal Gain ◽  
The Status ◽  
Combined Solution

This study presents on the design, fabrication and characteristics of HgCdTe mid-wave infrared avalanche photodiode (MWIR APD). The gain of 800 at - 8 V bias is measured in n+-ν-p+ detector array with pitch size of 30 μm. The gain independent bandwidth of 6 MHz is achieved in the fabricated device. This paper also covers the status of HgCdTe and III-V material based IR-APD technology. These APDs having high internal gain and bandwidth are suitable for the detection of attenuated optical signals such as in the battle field conditions/long range imaging in defence and space applications. It provides a combined solution for both detection and amplification if the detector receives a very weak optical signal. HgCdTe based APDs provide high avalanche gain with low excess noise, high quantum efficiency, low dark current and fast response time.

Exaggerated sensitivity in photodetectors with internal gain

2021 ◽  
Author(s):  
Simone Bianconi ◽  
Lincoln J. Lauhon ◽  
Hooman Mohseni
Keyword(s):  
Internal Gain

Excess noise in AlGaAs/GaAs heterojunction bipolar transistors and associated TLM test structures

1994 ◽  
Vol 41 (11) ◽  
pp. 2000-2005 ◽  
Author(s):  
C. Delseny ◽  
F. Pascal ◽  
S. Jarrix ◽  
G. Lecoy ◽  
J. Dangla ◽  
...  
Keyword(s):  
Heterojunction Bipolar Transistors ◽  
Bipolar Transistors ◽  
Excess Noise

Excess Noise in Deformed Germanium

1956 ◽  
Vol 27 (11) ◽  
pp. 1383-1384 ◽  
Author(s):  
James J. Brophy
Keyword(s):  
Excess Noise

A Study of the Excess Noise of Ir Transition Edge Sensors in the Frame of Statistical Models

2009 ◽  
Vol 19 (3) ◽  
pp. 445-450 ◽  
Author(s):  
D. Bagliani ◽  
D.F. Bogorin ◽  
E. Celasco ◽  
M. Celasco ◽  
R. Eggenhoffner ◽  
...  
Keyword(s):  
Statistical Models ◽  
Transition Edge Sensors ◽  
Excess Noise ◽  
Transition Edge

scholarly journals Small All-Range Lidar for Asteroid and Comet Core Missions

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3081
Author(s):  
Xiaoli Sun ◽  
Daniel R. Cremons ◽  
Erwan Mazarico ◽  
Guangning Yang ◽  
James B. Abshire ◽  
...  
Keyword(s):  
Fiber Lasers ◽  
Dynamic Range ◽  
Photon Counting ◽  
Avalanche Photodiode ◽  
Integration Time ◽  
Sample Collection ◽  
Long Distance ◽  
Linear Mode ◽  
Internal Gain ◽  
Pseudo Noise

We report the development of a new type of space lidar specifically designed for missions to small planetary bodies for both topographic mapping and support of sample collection or landing. The instrument is designed to have a wide dynamic range with several operation modes for different mission phases. The laser transmitter consists of a fiber laser that is intensity modulated with a return-to-zero pseudo-noise (RZPN) code. The receiver detects the coded pulse-train by correlating the detected signal with the RZPN kernel. Unlike regular pseudo noise (PN) lidars, the RZPN kernel is set to zero outside laser firing windows, which removes most of the background noise over the receiver integration time. This technique enables the use of low peak-power but high pulse-rate lasers, such as fiber lasers, for long-distance ranging without aliasing. The laser power and the internal gain of the detector can both be adjusted to give a wide measurement dynamic range. The laser modulation code pattern can also be reconfigured in orbit to optimize measurements to different measurement environments. The receiver uses a multi-pixel linear mode photon-counting HgCdTe avalanche photodiode (APD) array with near quantum limited sensitivity at near to mid infrared wavelengths where many fiber lasers and diode lasers operate. The instrument is modular and versatile and can be built mostly with components developed by the optical communication industry.

Excess Noise in InSb

1956 ◽  
Vol 27 (11) ◽  
pp. 1385-1385 ◽  
Author(s):  
G. H. Suits ◽  
W. D. Schmitz ◽  
R. W. Terhune
Keyword(s):  
Excess Noise
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