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Belyanin Group: Optics of Semiconductors and
Nanostructures
Research highlights Electrons
in semiconductor nanostructures or in a strong magnetic field are confined
into a potential well narrower than their de Broglie wavelength. Such a
quantum-confined electron gas offers a fascinating playground for quantum
optics and condensed matter physics, in which electron wave functions,
energies, transition matrix elements, scattering rates, and many other
parameters can be designed and controlled. We study coherent and
ultrafast optical phenomena in these artificial materials. We apply the
results of our theoretical analysis and numerical modeling to design novel
optical semiconductor devices with unique functionalities such as operation
in new spectral ranges, generation of ultrafast pulses, ultra-sensitive
photon detection, or ultra-broad modulation bandwidth. Our most recent,
ongoing research projects include: ·
Magnetooptical
response of dilute magnetic semiconductors ·
Coherent terahertz
optical response of low-dimensional semiconductor plasmas ·
Superfluorescence in
high-density electro-hole plasma in magnetized quantum wells ·
Mode locking
and ultrashort pulse generation in quantum cascade lasers ·
Phase
coherence in quantum cascade lasers ·
Nonlinear
optics and terahertz generation in quantum cascade lasers Announcements Graduate
course for Spring 2010: Optical semiconductor devices |
