Photothermal Spectroscopy Using a Pyroelectric Thin Film Detector.

Coufal, H.

Photothermal Spectroscopy Using a Pyroelectric Thin Film Detector.

Active / Technical Report | Accession Number: ADA134291 |

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Abstract:

The application of pyroelectric thin film transducers for photothermal studies is described. The sensitivity and versatility of pyroelectric detection is demonstrated by spectroscopic studies of neodymium oxide doped polymethylmethacrylate films. At energy fluences of less than 10 mJsq cm, sensitivities of 10 to the 14th power moleculessq cm are achieved with a conventional amplitude modulated light source as well as with a pulsed laser. A detector response time of less than 100 ns is observed with pulsed excitation.

Author(s):

Coufal, H.

Author Organization(s):

INTERNATIONAL BUSINESS MACHINES CORP SAN JOSE CALIF SAN JOSE RESEARCH LAB

Descriptive Note:

Technical rept.,

Pagination:

0015

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

TR-5

Contract/Grant Number(s):

N00014-81-C-0418

Subject Terms

Modernization Areas:

Microelectronics

Communities of Interest:

Advanced Electronics

Descriptor(s):

*Polymethyl methacrylate, *Detectors, *Pyroelectricity, *Spectroscopy, Transducers, Calorimetry, Photothermal energy, Thin films, Excitation, Pulsed lasers, Sensitivity

Field(s)/Group(s):

Plastics, Infrared Detection and Detectors, Atomic and Molecular Physics and Spectroscopy

Keyword(s):

WUNR051782

Report Date:

1983 Sep 16