Sharpening of enhanced backscattering peak in a disordered gain medium

Journal Article · Thu Aug 01 00:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.3240· OSTI ID:286671

Feng, S C ^[1]; Zhang, Z ^[2]

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1. Department of Physics, University of California, Los Angeles, California 90095-1547 (United States)
2. Department of Physics, Hong Kong, University of Science and Technology, Clear Water Bay, Kowloon (Hong Kong)

We study theoretically the phenomenon of enhanced backscattering (EBS) from a bulk disordered gain medium due to the presence of a dye and a pump beam. We show that the presence of the gain, in combination with the effect of saturation, can dramatically sharpen the EBS peak function. In the particular case of a point source incidence for the probe beam along with the presence of a plane-wave pump beam, the EBS approaches a {delta} function in angular space.{copyright} {ital 1996 The American Physical Society.}

• DOE Contract Number: FG03-88ER45378
• OSTI ID: 286671
• Journal Information: Physical Review, B: Condensed Matter, Vol. 54, Issue 5; Other Information: PBD: Aug 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMORPHOUS STATE
BACKSCATTERING
MULTIPLE SCATTERING
OPTICAL PROPERTIES
GAIN
PLANE WAVES