Second harmonic generation and random lasing after two-photon excitation

Giannis Zacharakis; Dmitrios Anglos; Theodore G. Papazoglou

doi:10.1117/12.447429

2 November 2001 Second harmonic generation and random lasing after two-photon excitation

Giannis Zacharakis, Dmitrios Anglos, Theodore G. Papazoglou

Proceedings Volume 4431, Photon Migration, Optical Coherence Tomography, and Microscopy; (2001) https://doi.org/10.1117/12.447429
Event: European Conferences on Biomedical Optics, 2001, Munich, Germany

Abstract

Random lasing and second harmonic generation after two-photon excitation was observed for the first time, in both scattering and amplifying polymer samples. Pumping was performed with sub-picosecond laser pulses at 830 nm and the emission, was observed with a spectrograph streak camera detection system for simultaneous recording of spectral and temporal features. SHG was detected at 415 nm and random lasing at 470 nm. The advantages of two photons absorption are discussed because of its enhanced detection efficiency and minimized effects on the irradiated sample (e.g. healthy tissue surrounding tumors).

Citation Download Citation

Giannis Zacharakis, Dmitrios Anglos, and Theodore G. Papazoglou "Second harmonic generation and random lasing after two-photon excitation", Proc. SPIE 4431, Photon Migration, Optical Coherence Tomography, and Microscopy, (2 November 2001); https://doi.org/10.1117/12.447429

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