Accession Number:

ADA361427

Title:

Optimization of a Multilayer Photothermal Sensor for Infrared Spectroscopy

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING

Personal Author(s):

• Wiggins, Janine O.

Report Date:

1999-03-01

Pagination or Media Count:

116.0

Abstract:

Tri-layer thermal diffusion modeling was applied to the optimization of a multi-layer reed sensor for use in a photothermal infrared detector. The multi-layer reed sensor deflects in response to increased temperature. Deflection, of angstroms or larger, is measured using an atomic force microscope. A newly developed thermal diffusion model for three layer reeds was combined with an existing two-layer cantilever model, in order to explore the effects of length, operating frequency, and layer thickness on signal to noise ratio. Model behavior is presented, and compared to laboratory results.

Descriptors:

• *INFRARED DETECTORS
• MATHEMATICAL MODELS
• VIBRATION
• INFRARED SPECTROSCOPY
• OPTIMIZATION
• DEFLECTION
• THESES
• THERMAL DIFFUSION
• PHOTOTHERMAL PROPERTIES

Subject Categories:

• Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE