Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Biological laser action

Not Accessible

Your library or personal account may give you access

Abstract

The narrowing of the spectral linewidth and the increasing of the peak intensity characteristic of laser action were observed in emission spectra of dye-infused biological tissues. The tissue was infused with a solution of Rhodamine 640 perchlorate in ethanol and then excited with frequency-doubled Q-switched Nd:YAG laser pulses. The dependence of emission linewidth on the excitation radiant exposure and dye concentration was investigated. Laser action was also observed in biologically compatible fluorescein sodium dye dissolved in phosphate-buffered saline mixed with scattering polystyrene spheres. The sharp spectral peaks of laser action in tissues may find applications in the detection of superficial disease.

© 1996 Optical Society of America

Full Article  |  PDF Article
More Like This
Laser action in polymeric gain media containing scattering particles

R. M. Balachandran, D. P. Pacheco, and N. M. Lawandy
Appl. Opt. 35(4) 640-643 (1996)

Thermal action of laser irradiation in biological material monitored by egg-white coagulation

T. Halldórsson, J. Langerholc, L. Senatori, and H. Funk
Appl. Opt. 20(5) 822-825 (1981)

Theory of laser action in scattering gain media

R. M. Balachandran, N. M. Lawandy, and J. A. Moon
Opt. Lett. 22(5) 319-321 (1997)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved