Title :
Enhancing Infrared Photodetection with a Circular Metal Grating
Author :
Bhat, Ravi D R ; Panoiu, Nicolae C. ; Osgood, Richard M. ; Brueck, Steven R J
Author_Institution :
Columbia Univ., New York
Abstract :
We use finite-difference time-domain simulations to demonstrate enhanced infrared absorption in a photodetector topped with a metal film having a hole and a circular grating. The enhancement far exceeds comparable linear gratings.
Keywords :
diffraction gratings; finite difference time-domain analysis; infrared detectors; integrated optoelectronics; light absorption; optical films; photodetectors; circular metal grating; finite-difference time-domain simulations; infrared absorption; infrared photodetection enhancement; linear gratings comparison; metal film photodetector; Dielectric substrates; Electromagnetic wave absorption; Finite difference methods; Gratings; Optical films; Optical surface waves; Photodetectors; Plasmons; Surface waves; Time domain analysis;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4452668
