Subwavelength antimonide infrared detector coupled with dielectric resonator antenna

Alireza Kazemi; Qingyuan Shu; Vinita Dahiya; Zahra Taghipour; Pablo Paradis; Christopher Ball; Theodore J. Ronningen; Stefan Zollner; Steven M. Young; Jordan Budhu; Kevin A. Grossklaus; Thomas E. Vandervelde; Anthony Grbic; Sanjay Krishna

doi:10.1117/12.2518807

7 May 2019 Subwavelength antimonide infrared detector coupled with dielectric resonator antenna

Alireza Kazemi, Qingyuan Shu, Vinita Dahiya, Zahra Taghipour, Pablo Paradis, Christopher Ball, Theodore J. Ronningen, Stefan Zollner, Steven M. Young, Jordan Budhu, Kevin A. Grossklaus, Thomas E. Vandervelde, Anthony Grbic, Sanjay Krishna

Author Affiliations +

Proceedings Volume 11002, Infrared Technology and Applications XLV; 1100221 (2019) https://doi.org/10.1117/12.2518807
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Antenna coupled detectors break the intrinsic tradeoff between signal and noise by “collecting over a large area” and “detecting over a small area”. Most antenna coupled detectors in the infrared rely on a metal resonator structure. However, there are losses associated with metallic structures. We have demonstrated a novel long-wave infrared (LWIR) detector that combines a dielectric resonator antenna with an antimonide-based absorber. The detector consists of a 3D, subwavelength InAsSb absorber embedded in a resonant, cylindrical dielectric resonator antenna made of amorphous silicon. This architecture enables the antimonide detection element to shrink to deep subwavelength dimensions, thereby reducing its thermal noise. It is important to note that this concept only applies when (a) the detector noise is limited by bulk noise mechanisms with negligible surface leakage currents and (b) the dominant source of current in the device is due to dark current (such as diffusion) that scales with the volume of the detector. The dielectric resonator enhances the collection of photons with its resonant structure that couples incident radiation to the detector. We will present results on the absorption in structures with and without the dielectric resonator antenna. The signal to noise enhancement in the LWIR photodiodes integrated with the dielectric resonator antenna using radiometric characterization will be discussed.

Citation Download Citation

Alireza Kazemi, Qingyuan Shu, Vinita Dahiya, Zahra Taghipour, Pablo Paradis, Christopher Ball, Theodore J. Ronningen, Stefan Zollner, Steven M. Young, Jordan Budhu, Kevin A. Grossklaus, Thomas E. Vandervelde, Anthony Grbic, and Sanjay Krishna "Subwavelength antimonide infrared detector coupled with dielectric resonator antenna", Proc. SPIE 11002, Infrared Technology and Applications XLV, 1100221 (7 May 2019); https://doi.org/10.1117/12.2518807

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