Authors:	K. Quang Le
Title:	Design of Type-II Interband Cascade Lasers for Terahertz Emission
Format:	International Journal
Publication date:	3/2009
Journal/Conference/Book:	Optical and Quantum Electronics
Volume(Issue):	40(973-981)
DOI:	10.1007/s11082-009-9274-5
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Abstract

We report the design of type-II interband cascade (IC) lasers emitting at terahertz (THz) range. The band structures are obtained using an eight-band k.p finite difference method with strain effects, which accounts for the coupling between the conduction and valence bands. Also, a detailed analysis of the interband transition energy in the type-II IC laser structures as a function of layer thickness is carried out using the self-consistent Schrödinger-Poisson calculations. The calculations show that the promising type-II IC lasers operating at 2.3 THz can be reached.