Testing the accuracy of a laser calorimeter by comparison with an FTIR

Etsuo Kawate

doi:10.1117/12.403584

11 October 2000 Testing the accuracy of a laser calorimeter by comparison with an FTIR

Etsuo Kawate

Proceedings Volume 4103, Optical Diagnostic Methods for Inorganic Materials II; (2000) https://doi.org/10.1117/12.403584
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A laser calorimeter has been developed with a sensitivity of the order of 10^-6cm^-1 with one watt of laser power using a CO₂ laser (9(mu) m to 11(mu) m) in the infrared region. In order to evaluate the accuracy of the laser calorimeter, the absorptance of a thin and semitransparent silicon sample was measured using the laser calorimeter in the infrared region and the transmittance and the reflectance of the same sample were also measured by a conventional Fourier-transform infrared spectrometer. Two absorptances obtained from two independent methods agree will within 2%, however it becomes clear that an interval of a Fabry-Perot interference fringe doesn't agree in absorptance spectra measured by these methods.

Citation Download Citation

Etsuo Kawate "Testing the accuracy of a laser calorimeter by comparison with an FTIR", Proc. SPIE 4103, Optical Diagnostic Methods for Inorganic Materials II, (11 October 2000); https://doi.org/10.1117/12.403584

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available