Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors

Yuyan Wang; Benjamin J. Potter; Michael Sutton; Joseph J. Talghader

Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors

Yuyan Wang
, Benjamin J. Potter
, Michael Sutton
, Joseph J. Talghader

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

A resonant long-wavelength infrared (LWIR) absorption filter for thermal detectors is proposed and demonstrated. The filter operates not by transmitting light like a typical Fabry-Perot, but rather by coupling light in a small wavelength region into one mirror where it dissipates and heats the thermal detector plate. The top plate, or mirror, is movable and can be continuously tuned to have a resonance from 8.7 to 11.1µm using electrostatic actuation with 0-42V applied voltage. Since LWIR features are often very course compared to those in the visible, the widths of the tuned resonances are about 1.5µm. At an actuation voltage of 45V, the filter switches into a broadband mode with an absorption width of 2.83µm to enhance sensitivity for scenes with few photons and little spectral information. The switching time between the modes is about 100µsec and the settling time about 400-700µsec. Both times are readily compatible with standard microbolometer frame times.

Original language	English (US)
Title of host publication	2006 Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006
Editors	Leland Spangler, Thomas W. Kenny
Publisher	Transducer Research Foundation
Pages	260-263
Number of pages	4
ISBN (Electronic)	0964002469, 9780964002463
State	Published - 2006
Event	13th Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006 - Hilton Head Island, United States Duration: Jun 4 2006 → Jun 8 2006

Publication series

Name	Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop

Conference

Conference	13th Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006
Country/Territory	United States
City	Hilton Head Island
Period	6/4/06 → 6/8/06

Bibliographical note

Publisher Copyright:
© 2006 TRF.

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Wang, Y., Potter, B. J., Sutton, M., & Talghader, J. J. (2006). Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors. In L. Spangler, & T. W. Kenny (Eds.), 2006 Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006 (pp. 260-263). (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop). Transducer Research Foundation.

Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors. / Wang, Yuyan; Potter, Benjamin J.; Sutton, Michael et al.
2006 Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006. ed. / Leland Spangler; Thomas W. Kenny. Transducer Research Foundation, 2006. p. 260-263 (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, Y, Potter, BJ, Sutton, M & Talghader, JJ 2006, Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors. in L Spangler & TW Kenny (eds), 2006 Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006. Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop, Transducer Research Foundation, pp. 260-263, 13th Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006, Hilton Head Island, United States, 6/4/06.

Wang Y, Potter BJ, Sutton M, Talghader JJ. Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors. In Spangler L, Kenny TW, editors, 2006 Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006. Transducer Research Foundation. 2006. p. 260-263. (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop).

Wang, Yuyan ; Potter, Benjamin J. ; Sutton, Michael et al. / Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors. 2006 Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006. editor / Leland Spangler ; Thomas W. Kenny. Transducer Research Foundation, 2006. pp. 260-263 (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop).

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title = "Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors",

abstract = "A resonant long-wavelength infrared (LWIR) absorption filter for thermal detectors is proposed and demonstrated. The filter operates not by transmitting light like a typical Fabry-Perot, but rather by coupling light in a small wavelength region into one mirror where it dissipates and heats the thermal detector plate. The top plate, or mirror, is movable and can be continuously tuned to have a resonance from 8.7 to 11.1µm using electrostatic actuation with 0-42V applied voltage. Since LWIR features are often very course compared to those in the visible, the widths of the tuned resonances are about 1.5µm. At an actuation voltage of 45V, the filter switches into a broadband mode with an absorption width of 2.83µm to enhance sensitivity for scenes with few photons and little spectral information. The switching time between the modes is about 100µsec and the settling time about 400-700µsec. Both times are readily compatible with standard microbolometer frame times.",

author = "Yuyan Wang and Potter, \{Benjamin J.\} and Michael Sutton and Talghader, \{Joseph J.\}",

note = "Publisher Copyright: {\textcopyright} 2006 TRF.; 13th Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006 ; Conference date: 04-06-2006 Through 08-06-2006",

year = "2006",

language = "English (US)",

series = "Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop",

publisher = "Transducer Research Foundation",

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editor = "Leland Spangler and Kenny, \{Thomas W.\}",

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TY - GEN

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AU - Wang, Yuyan

AU - Potter, Benjamin J.

AU - Sutton, Michael

AU - Talghader, Joseph J.

PY - 2006

Y1 - 2006

N2 - A resonant long-wavelength infrared (LWIR) absorption filter for thermal detectors is proposed and demonstrated. The filter operates not by transmitting light like a typical Fabry-Perot, but rather by coupling light in a small wavelength region into one mirror where it dissipates and heats the thermal detector plate. The top plate, or mirror, is movable and can be continuously tuned to have a resonance from 8.7 to 11.1µm using electrostatic actuation with 0-42V applied voltage. Since LWIR features are often very course compared to those in the visible, the widths of the tuned resonances are about 1.5µm. At an actuation voltage of 45V, the filter switches into a broadband mode with an absorption width of 2.83µm to enhance sensitivity for scenes with few photons and little spectral information. The switching time between the modes is about 100µsec and the settling time about 400-700µsec. Both times are readily compatible with standard microbolometer frame times.

AB - A resonant long-wavelength infrared (LWIR) absorption filter for thermal detectors is proposed and demonstrated. The filter operates not by transmitting light like a typical Fabry-Perot, but rather by coupling light in a small wavelength region into one mirror where it dissipates and heats the thermal detector plate. The top plate, or mirror, is movable and can be continuously tuned to have a resonance from 8.7 to 11.1µm using electrostatic actuation with 0-42V applied voltage. Since LWIR features are often very course compared to those in the visible, the widths of the tuned resonances are about 1.5µm. At an actuation voltage of 45V, the filter switches into a broadband mode with an absorption width of 2.83µm to enhance sensitivity for scenes with few photons and little spectral information. The switching time between the modes is about 100µsec and the settling time about 400-700µsec. Both times are readily compatible with standard microbolometer frame times.

UR - https://www.scopus.com/pages/publications/84891771702

UR - https://www.scopus.com/pages/publications/84891771702#tab=citedBy

M3 - Conference contribution

AN - SCOPUS:84891771702

T3 - Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop

SP - 260

EP - 263

BT - 2006 Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006

A2 - Spangler, Leland

A2 - Kenny, Thomas W.

PB - Transducer Research Foundation

T2 - 13th Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006

Y2 - 4 June 2006 through 8 June 2006

ER -

Absorption filters for wavelength tuning and finesse switching of long wave infrared thermal detectors

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