Photothermal measuring techniques using pulsed laser

Volker Neumann; Peter Meja; Bernhard Steiger

doi:10.1117/12.306985

20 April 1998 Photothermal measuring techniques using pulsed laser

Volker Neumann, Peter Meja, Bernhard Steiger

Proceedings Volume 3244, Laser-Induced Damage in Optical Materials: 1997; (1998) https://doi.org/10.1117/12.306985
Event: Laser-Induced Damage in Optical Materials: 1997, 1997, Boulder, CO, United States

Abstract

An experimental set-up using different pulsed photothermal measuring techniques is presented. The set-up allows investigation of different optical components byu means of the photothermal reflectance microscopy, photothermal transmittance microscopy and the photothermal deflection microscopy both in reflection and transmission. The methods are based on different effects, such as a surface bending caused by thermally induced stress and thermal stress dependence of the refractive index. Therefore and in consequence of different reflectance's of the components, each photothermal techniques has different measuring sensitivity. The combination of several photothermal techniques allows an investigation of all optical component classes. Otherwise, more information could be determined about optical, thermal and mechanical properties of components. The experimental results of various optical components are presented. The absorbance, reflectance, transmittance and thermally conductivity are discussed on the basis of temporally measured signal curves. Thermally induced stress was also detected by means of the photothermal deflection microscopy in transmission.

Citation Download Citation

Volker Neumann, Peter Meja, and Bernhard Steiger "Photothermal measuring techniques using pulsed laser", Proc. SPIE 3244, Laser-Induced Damage in Optical Materials: 1997, (20 April 1998); https://doi.org/10.1117/12.306985

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