نتایج جستجو برای: band gap engineering
تعداد نتایج: 516322 فیلتر نتایج به سال:
the structure and the electronic properties of single-walled zigzag bn and b3c2n3 nanotubes (n, 0; n=4–10) were investigated using first-principles calculations based on a density functional theory. a plane–wave basis set with periodic boundary conditions in conjunction with vanderbilt ultrasoft pseudo-potential was employed. the energy gap of zb3c2n3nts was calculated and compared with the cor...
Photonic band gap airbridge microcavity resonances in GaAs/AlxOy waveguides D. J. Ripin, Kuo-Yi Lim, G. S. Petrich, Pierre R. Villeneuve, Shanhui Fan, E. R. Thoen, J. D. Joannopoulos, E. P. Ippen, and L. A. Kolodziejski Department of Physics, Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Center for Material Science and Engineering, Massachusetts ...
In this paper, the phase properties of waves reflected from one-dimensional double-periodic quasi-crystals consisting of single-negative materials are investigated using transfer matrix method. It is observed that, by increasing the double-periodic generation number, a large omnidirectional band gap is created in the single-nagative frequency range. We limit our studies to the frequency range o...
"Near-band-gap CuPt-order-induced birefringence in Al 0.48 Ga 0.52 InP 2 " (1999). Faculty Publications from the Department of Electrical and Computer Engineering. 28. The order-induced birefringence in the near-band-gap spectral range ͑0.75 to 2.5 eV͒, and its dependence on the degree of ordering is reported for Al 0.48 Ga 0.52 InP 2. Transmission and reflection generalized variable angle spec...
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