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Resonant tunneling and bistability in a double barrier structure under an intense terahertz laser

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posted on 2024-11-15, 10:06 authored by Chao ZhangChao Zhang
By using exact wave functions of an electron in a terahertz laser field, we calculated the electron resonant tunneling through a double barrier structure. It is found that the laser field has two effects on the current voltage characteristics. First, it introduces additional tunneling states through the structure due to multiple photon processes (emission, absorption, scattering). Second, it reduces the width of the bistable region. At high field strength and low frequencies, the bistability can be completely removed. This can provide a method by which to tune the bistable region in a double barrier structure.

History

Citation

This article was originally published as: Zhang, C, Resonant tunneling and bistability in a double barrier structure under an intense terahertz laser, Applied Physics Letters, 2001, 78(26), 4187–4189. Original journal available here.

Journal title

Applied Physics Letters

Volume

78

Issue

26

Pagination

4187-4189

Language

English

RIS ID

6486

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