Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Coupled absorption filters for thermal detectors

Not Accessible

Your library or personal account may give you access

Abstract

A resonant absorption cavity that couples long-wavelength infrared (LWIR) light into a movable plate has been demonstrated for thermal detectors, especially microbolometers. Each device is continuously tunable over 8.711.1μm by using electrostatic actuation with voltages from 0 to 42V. The width of the resonance is relatively broad, approximately 1.5μm, to match the large widths of many spectral features in the LWIR. At an actuation voltage of 45V, the device switches into a broadband mode with an absorption width of 2.83μm. This latter mode is used to enhance sensitivity in low-light situations in which little spectral information is present.

© 2006 Optical Society of America

Full Article  |  PDF Article
More Like This
Waveguide electro-optic modulator in fused silica fabricated by femtosecond laser direct writing and thermal poling

Guangyu Li, Kim A. Winick, Ali A. Said, Mark Dugan, and Philippe Bado
Opt. Lett. 31(6) 739-741 (2006)

Polarization-independent and tunable comb filter based on a free-space coupling technique

Haifeng Lu, Zhuangqi Cao, Honggen Li, Qishen Shen, and Xiaoxu Deng
Opt. Lett. 31(3) 386-388 (2006)

Critically coupled resonators in vertical geometry using a planar mirror and a 5 nm thick absorbing film

Jonathan R. Tischler, M. Scott Bradley, and Vladimir Bulović
Opt. Lett. 31(13) 2045-2047 (2006)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved