Abstract

The temporal profiles of the emission from titania particle suspensions in Rhodamine 640 perchlorate dye solutions excited by 10-ps pulses of 527-nm radiation were measured over a wide range of particle and dye concentrations and laser powers. The dynamics of stimulated emission from random media is modeled by a random walk of photons within the colloid and rate equations for molecular excitations. The pulse width and the dependence of the threshold for laser action on dye and scatter concentration are computed by a Monte Carlo simulation of the model and are found to be in qualitative agreement with experiment.

© 1996 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Biological laser action

Lihong Wang, Da Liu, Nancy He, Steven L. Jacques, and Sharon L. Thomsen
Appl. Opt. 35(10) 1775-1779 (1996)

Spectral measurements of the emission from highly scattering gain media

G. Beckering, S. J. Zilker, and D. Haarer
Opt. Lett. 22(18) 1427-1429 (1997)

Lasing in active, sub-mean-free path-sized systems with dense, random, weak scatterers

B. Raghavendra Prasad, Hema Ramachandran, Ajay Kumar Sood, C. K. Subramanian, and Narendra Kumar
Appl. Opt. 36(30) 7718-7724 (1997)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (3)

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

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

Tables (1)

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

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

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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