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Application of terahertz quantum-cascade lasers to semiconductor cyclotron resonance
Diane C Larrabee1, Giti A Khodaparast, Frank K Tittel
1Department of Electrical and Computer Engineering, Rice Quantum Institute, Rice University, Houston, Texas 77005, USA.
Optics Letters
|January 15, 2004
Abstract:
Quantum-cascade lasers operating at 4.7, 3.5, and 2.3 THz have been used to achieve cyclotron resonance in InAs and InSb quantum wells from liquid-helium temperatures to room temperature. This represents one of the first spectroscopic applications of terahertz quantum-cascade lasers. Results show that these compact lasers are convenient and reliable sources with adequate power and stability for this type of far-infrared magneto-optical study of solids. Their compactness promises interesting future applications in solid-state spectroscopy.