Strain-enhanced optical absorbance of topological insulator films
نویسندگان
چکیده
منابع مشابه
Warping effect-induced optical absorbance increment of topological insulator films for THz photodetectors with high signal-to-noise ratio.
Strong optical absorbance makes topological insulator (TI) surfaces a promising high-performance photodetector in the terahertz (THz) to infrared frequency range. Here, we study the optical absorbance of more realistic TI films with hexagonal warping effect using the Fermi's golden rules. It was found that when the warping term is λ ≠ 0, the absorbance is no longer a universal value as that of ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2018
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.97.081402