Studying of mass transfer processes and defectoscopy of paper porosity using femtosecond OCT

Kirill P. Bestemyanov; Vyacheslav M. Gordienko; Alexey N. Konovalov; A. A. Podshivalov

doi:10.1117/12.568574

14 July 2004 Studying of mass transfer processes and defectoscopy of paper porosity using femtosecond OCT

Kirill P. Bestemyanov, Vyacheslav M. Gordienko, Alexey N. Konovalov, A. A. Podshivalov

Proceedings Volume 5475, Saratov Fall Meeting 2003: Coherent Optics of Ordered and Random Media IV; (2004) https://doi.org/10.1117/12.568574
Event: Saratov Fall Meeting 2003, 2003, Saratov, Russian Federation

Abstract

A procedure of inspection of femtosecond laser induced mass transfer processes 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.. 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 (Dz~15mm). We propose optical heterodyning technique based on OCT for obtaining temporal distribution of backscattered photons from media irradiated by Cr:forsterite femtosecond laser. The temporal resolution is about 60 fs. The technique was used for sheet paper porosity diagnostics.

Citation Download Citation

Kirill P. Bestemyanov, Vyacheslav M. Gordienko, Alexey N. Konovalov, and A. A. Podshivalov "Studying of mass transfer processes and defectoscopy of paper porosity using femtosecond OCT", Proc. SPIE 5475, Saratov Fall Meeting 2003: Coherent Optics of Ordered and Random Media IV, (14 July 2004); https://doi.org/10.1117/12.568574

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