Photonic jets for strained-layer superlattice infrared photodetector enhancement

Author

Allen, Kenneth W. ; Duran, Joshua M. ; Ariyawansa, Gamini ; Vella, Jarrett H. ; Limberopoulos, Nicholaos I. ; Urbas, Augustine M. ; Astratov, Vasily N.

Author_Institution

Dept. of Phys. & Opt. Sci., Univ. of North Carolina at Charlotte, Charlotte, NC, USA

fYear

2014

Firstpage

32

Lastpage

33

Abstract

Photonic jets are light beams focused by dielectric microspheres down to subwavelength dimensions. In this work we show that they can be used for enhancing performance of strained-layer superlattice (SLS) infrared (IR) photodiodes in the midwave-infrared spectral band (3-5 μm). We optimized the design of these structures and experimentally demonstrated the increased sensitivity compared to conventional photodetectors.

Keywords

infrared detectors; jets; photodetectors; photodiodes; superlattices; infrared photodiodes; midwave-infrared spectral band; photonic jets; sensitivity; strained-layer superlattice infrared photodetector enhancement; wavelength 3 mum to 5 mum; Dielectrics; Focusing; Laser beams; Photodetectors; Photonics; Sensitivity; Superlattices; microspheres; midwave-infrared; photodetectors; photodiodes; photonic jets; sensitivity of photodetectors; strained-layer superlattice;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference, NAECON 2014 - IEEE National

Print_ISBN

978-1-4799-4690-7

Type

conf

DOI

10.1109/NAECON.2014.7045770

Filename

7045770