Abstract

Comparing the absorption spectrum of a single-crystalline material and the reflection spectrum of its powder, we have derived a simple empirical formula for the reflection coefficient of absorbing powder. The proposed equation, which slightly resembles the Lambert-Beer law for transmission, does not correspond to the equation derived in the approximation of a simple one-dimensional diffusion model.

© 2004 Optical Society of America

Dependence of NdSc₃(BO₃)₄ random laser parameters on particle size

M. A. Noginov, G. Zhu, A. A. Frantz, J. Novak, S. N. Williams, and I. Fowlkes
J. Opt. Soc. Am. B 21(1) 191-200 (2004)

Determination of the transport mean free path in a solid-state random laser

Messaoud Bahoura and M. A. Noginov
J. Opt. Soc. Am. B 20(11) 2389-2394 (2003)

Random-wavelength solid-state laser

J. Kong, D. Y. Tang, J. Lu, and K. Ueda
Opt. Lett. 29(1) 65-67 (2004)

Short-pulsed stimulated emission in the powders of NdAl₃(BO₃)₄, NdSc₃(BO₃)₄, and Nd:Sr₅(PO₄)₃F laser crystals

M. A. Noginov, N. E. Noginova, H. J. Caulfield, P. Venkateswarlu, T. Thompson, M. Mahdi, and V. Ostroumov
J. Opt. Soc. Am. B 13(9) 2024-2033 (1996)

Optimization of the transport mean free path and the absorption length in random lasers with non-resonant feedback

M. A. Noginov, J. Novak, D. Grigsby, G. Zhu, and M. Bahoura
Opt. Express 13(22) 8829-8836 (2005)