Study on the metal grating optical coupling for quantum cascade detector

Author

Li, Luoqing ; Xiong, D.Y.

Author_Institution

Key Lab. of Polar Mater. & Devices, East China Normal Univ., Shanghai, China

fYear

2013

fDate

19-22 Aug. 2013

Firstpage

27

Lastpage

28

Abstract

We present the simulation results of a method for the quantum cascade detectors (QCD) optical coupling. A metal grating was integrated with a QCD to convert normal-incident electromagnetic (EM) waves into non-normal, higher-order propagating wave (HOPW) and surface plasmon wave (SPW), which contribute to excite the bound-to-bound (BTB) intersubband transition of carriers in the QCD. The presented results have significance for the QCD optical coupling design and optimization.

Keywords

diffraction gratings; electromagnetic wave propagation; integrated optics; optical couplers; optical design techniques; photodetectors; surface plasmons; bound-to-bound intersubband transition; integrated optics; metal grating; nonnormal higher-order propagating wave; normal-incident electromagnetic waves; optical coupling design; optimization; quantum cascade detectors; surface plasmon wave; Absorption; Electric fields; Finite difference methods; Gratings; Metals; Optical coupling; Time-domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Numerical Simulation of Optoelectronic Devices (NUSOD), 2013 13th International Conference on

Conference_Location

Vancouver, BC

ISSN

2158-3234

Print_ISBN

978-1-4673-6309-9

Type

conf

DOI

10.1109/NUSOD.2013.6633107

Filename

6633107