Confined and interface optical phonons in the semiconductor elliptic quantum wire with the axial heterostructure
نویسندگان
چکیده
منابع مشابه
Interface and confined polar optical phonons in spherical ZnO quantum dots with wurtzite crystal structure
We derive analytically the interface and confined polar optical-phonon modes for spherical quantum dots with wurtzite crystal structure. While the frequency of confined optical phonons in zincblende nanocrystals is equal to that of the bulk crystal phonons, the confined polar optical phonons in wurtzite nanocrystals are shown to have a discrete spectrum of frequencies different from those in bu...
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We derive within the dielectric-continuum model an integral equation that defines interface and confined polar optical-phonon modes in nanocrystals with a wurtzite crystal structure. It is demonstrated theoretically that, while the frequency of confined polar optical phonons in zinc-blende nanocrystals is equal to that of the bulk crystal phonons, the confined polar optical phonons in wurtzite ...
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This paper discusses the concept of enhancing semiconductor laser performance through tailoring of scattering rates of confined polar-optical phonons. Studies of optically pumped intersubband scattering in coupled quantum-well lasers have demonstrated that interface-phonon-assisted transitions are important in such structures; furthermore, simple analytical expressions have been derived that in...
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ژورنال
عنوان ژورنال: Journal of Physical Studies
سال: 2011
ISSN: 1027-4642,2310-0052
DOI: 10.30970/jps.15.2601