Photonic crystal slab quantum well infrared photodetector

Autor(en)

Stefan Kalchmair, Hermann Detz, Garrett Cole, A. M. Andrews, Pavel Klang, Michele Nobile, Roman Gansch, Clemens Ostermaier, Werner Schrenk, Gottfried Strasser

Abstrakt

In this letter we present a quantum well infrared photodetector (QWIP), which is fabricated as a photonic crystal slab (PCS). With the PCS it is possible to enhance the absorption efficiency by increasing photon lifetime in the detector active region. To understand the optical properties of the device we simulate the PCS photonic band structure, which differs significantly from a real two-dimensional photonic crystal. By fabricating a PCS-QWIP with 100x less quantum well doping, compared to a standard QWIP, we are able to see strong absorption enhancement and sharp resonance peaks up to temperatures of 170 K

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Technische Universität Wien

Journal

Applied Physics Letters

Band

98

Anzahl der Seiten

3

ISSN

0003-6951

DOI

https://doi.org/10.1063/1.3537954

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/847da408-82c6-412b-bd2c-c11d08bd76bb