Terahertz Quantum Cascade Laser Source Based on Intra-Cavity Difference-Frequency Generation

By M. Belkin, F. Capasso, A. Belyanin, D. Sivco, A. Cho, D. Oakley, C. Vineis, G. Turner. 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, 2007

194 citations recorded by the source corpus.

This paper aims to integrate AlInAs/InGaAs quantum well structures with high second-order nonlinear susceptibility into a dual-wavelength quantum cascade laser (QCL) for difference frequency generation (DFG) of THz radiation. The QCL active region contains two sections: a section with 30 cascades of bound-to-continuum design with integrated optical nonlinearity emitting at 8.7 mum and a section with 20 cascades of two-phonon design emitting at 7.6 mum. The nonlinear susceptibility for the DFG process is found to have a value of chi(2)~4times105 pm/V.

Subfields: Atmospheric Science, Electrical and Electronic Engineering, Spectroscopy

View Paper: https://www.semanticscholar.org/paper/6e46dc75c1da46e5157a2db019a5157a129f0455

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In Atmospheric Science

1. M. Belkin
2. F. Capasso

In Electrical and Electronic Engineering

1. M. Belkin
2. F. Capasso

In Spectroscopy

1. M. Belkin
2. F. Capasso

Citations in the corpus

• New frontiers in quantum cascade lasers: high performance room temperature terahertz sources (2015, methodology): “In particular, it was shown that a bound-to-continuum [60, 61] and dual upper state [66, 67] active region designs intrinsically possesses strong”