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arXiv 0810.0412cond-mat.mes-hall
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基于光子晶体的太赫兹探测器的顺序多光子策略

Sequential multi-photon strategy for semiconductor-based terahertz detectors

F. Castellano, R. C. Iotti, F. Rossi

摘要:

提出并研究了一种基于半导体的太赫兹探测器策略,该策略采用了一种束缚-束缚-连续体系结构。特别地,采用等距能级的阶梯,其步长被调谐到期望的检测频率并允许顺序的多光子吸收。我们的理论分析表明,所提出的多子带方案可以代表一个有前途的替代传统的量子阱红外探测器在太赫兹光谱区域。

英文摘要:

A semiconductor-based terahertz-detector strategy, exploiting a bound-to-bound-to-continuum architecture, is presented and investigated. In particular, a ladder of equidistant energy levels is employed, whose step is tuned to the desired detection frequency and allows for sequential multi-photon absorption. Our theoretical analysis demonstrates that the proposed multi-subband scheme could represent a promising alternative to conventional quantum-well infrared photodetectors in the terahertz spectral region.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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