We present distributed-feedback Terahertz quantum cascade lasers operating in a double-metal ring waveguide. High power collimated emission in a single spectral mode is observed in the vertical direction. A double-slit configuration is employed to achieve both good electrical contacts and efficient power out-coupling. The optical properties of the devices are interpreted with the aid of finite element simulations.

Distributed feedback ring resonators for vertically emitting terahertz quantum cascade lasers

A. TREDICUCCI;BELTRAM, Fabio;
2009

Abstract

We present distributed-feedback Terahertz quantum cascade lasers operating in a double-metal ring waveguide. High power collimated emission in a single spectral mode is observed in the vertical direction. A double-slit configuration is employed to achieve both good electrical contacts and efficient power out-coupling. The optical properties of the devices are interpreted with the aid of finite element simulations.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/2864
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