Exceeding the Manley-Rowe quantum efficiency limit in an optically pumped THz amplifier
光学
2009-11-13 v1
摘要
Using a microscopic theory based on the Maxwell-semiconductor Bloch equations, we investigate the possibility of an optically-assisted electrically-driven THz quantum cascade laser. Whereas in optical conversion schemes the power conversion efficiency is limited by the Manley-Rowe relation, the proposed optically-assisted scheme can achieve higher efficiency by coherently recovering the optical pump energy. Furthermore, due to quantum coherence effects the detrimental effects of scattering are mitigated.
引用
@article{arxiv.physics/0611061,
title = {Exceeding the Manley-Rowe quantum efficiency limit in an optically pumped THz amplifier},
author = {Ines Waldmueller and Michael C. Wanke and Weng W. Chow},
journal= {arXiv preprint arXiv:physics/0611061},
year = {2009}
}