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

A Thin-Film Capacitive Bolometer

Not Accessible

Your library or personal account may give you access

Abstract

A thin-film capacitive bolometer is described, which depends on a temperature sensitivity derived from electron trapping effects in thin amorphous dielectric films containing an ionic space charge. The theory of this process is summarized and shown to be in good agreement with results obtained from anodized Nb2O5 capacitors. The capacitive elements can be formed on thin-film supporting structures to achieve large thermal detectivities D*. An analysis given for an optimized detector indicates that it is possible to reach the theoretical maximum D* at room temperature. Experimental detectors are described which were fabricated from anodized Nb2O5 and evaporated Al2O–TiO2 capacitors. Their performance at room temperature indicates responsivities of at least 2 mV/μW, effective time constants of about 0.05 sec, and D*’s in excess of 109.

© 1970 Optical Society of America

Full Article  |  PDF Article
More Like This
Resonant bolometer: results and an application

Mark Dragovan and S. Harvey Moseley
Appl. Opt. 24(12) 1770-1772 (1985)

Composite bolometers for submillimeter wavelengths

N. S. Nishioka, P. L. Richards, and D. P. Woody
Appl. Opt. 17(10) 1562-1567 (1978)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

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 (11)

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

Equations (25)

You do not have subscription access to this journal. Equations 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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved