PHOT OREFLECTANCE SPECTROSCOPY OF GaAs DOPING SUPERLATTICES | Zendy

Yinsheng Tang | Zendy; WANG BENG-SHEN | Zendy; Jiang De-sheng | Zendy; Weihua Zhuang | Zendy; Jiben Liang | Zendy

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PHOT OREFLECTANCE SPECTROSCOPY OF GaAs DOPING SUPERLATTICES

Author(s) -

Yinsheng Tang,

WANG BENG-SHEN,

Jiang De-sheng,

Weihua Zhuang,

Jiben Liang

Publication year - 1988

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.37.157

Subject(s) - superlattice , doping , spectroscopy , materials science , derivative (finance) , beam (structure) , molecular beam epitaxy , modulation (music) , condensed matter physics , atomic physics , optics , physics , optoelectronics , nanotechnology , quantum mechanics , epitaxy , layer (electronics) , acoustics , financial economics , economics

Room temperature photoreflectances of a MBE GaAs doping superlattice were measured under different pump beam intensities. A series of fine structures corresponding to forbidden transitions (△n≠0) were observed af lower pump beam intensities. This means it is net a third derivative spectrum. A first derivative lineshape of photoreflectance for doping super-lattices was suggested, and the modulation mechnism was discussed. Theorefical calculations give a good explanation to the experiments.

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