Features of the interaction of ultrashort laser pulses with a thin semiconductor film caused by the generation of excitons and biexcitons

Journal Article · Sat Aug 31 04:00:00 EDT 2002 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2002V032N08ABEH002277· OSTI ID:21470219

Khadzhi, P I ^[1]; Corovai, A V

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1. Department of Physics and Mathematics, T.G. Shevchenko Pridnestrie State University (Moldova, Republic of)

Nonstationary transmission (reflection) of two time-separated ultrashort laser pulses by thin semiconductor films is studied. Photons of one of these pulses generate biexcitons in the films due to two-photon absorption from the crystal ground state, while photons of the other pulse induce an optical exciton - biexciton conversion. Several basically new effects in nonstationary light transmission (reflection) are found and interpreted. (nonlinear optical phenomena)

• OSTI ID: 21470219
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 8 Vol. 32; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
BOSONS
CRYSTALS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EXCITONS
FILMS
LASER RADIATION
LIGHT TRANSMISSION
MASSLESS PARTICLES
MATERIALS
PHOTONS
PULSES
QUASI PARTICLES
RADIATIONS
REFLECTION
SEMICONDUCTOR MATERIALS
SORPTION
THIN FILMS
TRANSMISSION