Antimonide based avalanche photodiodes

Sanjay Krishna

doi:10.1117/12.2588360

12 April 2021 Antimonide based avalanche photodiodes

Sanjay Krishna

Proceedings Volume 11741, Infrared Technology and Applications XLVII; 117410T (2021) https://doi.org/10.1117/12.2588360
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

There is a lot of interest in developing low noise avalanche photodiodes (APDs) in the short wave infrared (1.5-3 microns) and mid-wave infrared (3-5 microns). State of the art APDs are are based on based on interband transitions in mercury cadmium telluride (MCT, HgCdTe) with large multiplication gains and low excess noise factors due to the favorable bandstructure that promotes single carrier impact ionization. However, their dark currents are high (3-5e-4A/cm2 at a gain of 10 at 125K) that requires cryogenic cooling. We have investigated the multiplication characteristics of three different multipliers on InP substrate (AlGaInAs (M1), AlGaAsSb (M2) and AlInAsSb (M3)). We have demonstrated decrease in the excess noise factors using ternary superlattices and extremely low excess noise factors (k~0.01) and low dark current density (~10 A/cm2) at 300K. We will discuss the research challenges associated with the design, growth, fabrication and radiometric characterization of these APDs

Conference Presentation

Citation Download Citation

Sanjay Krishna "Antimonide based avalanche photodiodes", Proc. SPIE 11741, Infrared Technology and Applications XLVII, 117410T (12 April 2021); https://doi.org/10.1117/12.2588360

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available