Optical Doppler tomography of near-surface mass transfer processes induced by femtosecond laser

Kirill P. Bestemyanov; Vyacheslav M. Gordienko; Alexei Konovalov; S. A. Magnitskii; J. S. Toursunov

doi:10.1117/12.427737

31 May 2001 Optical Doppler tomography of near-surface mass transfer processes induced by femtosecond laser

Kirill P. Bestemyanov, Vyacheslav M. Gordienko, Alexei Konovalov, S. A. Magnitskii, J. S. Toursunov

Proceedings Volume 4242, Saratov Fall Meeting 2000: Coherent Optics of Ordered and Random Media; (2001) https://doi.org/10.1117/12.427737
Event: Saratov Fall Meeting 2000, 2001, Saratov, Russian Federation

Abstract

A procedure of inspection of mass transfer processes by induced femtosecond laser has been suggested that is based on pump-probe Doppler tomography. In the experiments we used mode-locked Ti:sapphire laser with output power up to 150 mW. Pulse duration was 100fs at 100MHz repetition rate. In our experiments focused laser radiation induced on the surface of the target mass transfer processes (melting and convection). The Doppler shifted backscattered radiation was registered by heterodyne scheme based on Michelson interferometer. We have obtained information about depth and distribution of convection flows within melted paraffin bath with high spatial resolution ((delta) z~15micrometers ).

Citation Download Citation

Kirill P. Bestemyanov, Vyacheslav M. Gordienko, Alexei Konovalov, S. A. Magnitskii, and J. S. Toursunov "Optical Doppler tomography of near-surface mass transfer processes induced by femtosecond laser", Proc. SPIE 4242, Saratov Fall Meeting 2000: Coherent Optics of Ordered and Random Media, (31 May 2001); https://doi.org/10.1117/12.427737

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