Terahertz quantum cascade lasers in a magnetic field

V. Tamosiunas, R. Zobl, J. Ulrich, K. Unterrainer, R. Colombelli, C. Gmachl, K. West, L. Pfeiffer, F. Capasso

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

The behavior of a terahertz (THz) quantum cascade laser (QCL) in a magnetic field was investigated. Reactive ion etching was used to process the laser devices into ridges through the active zone down to the bottom contact layer. The measurements were performed with the device mounted in a cryostat equipped with two superconducting magnets. A reduction of the threshold current density was observed with increasing applied fields.

Original languageEnglish (US)
Pages (from-to)3873-3875
Number of pages3
JournalApplied Physics Letters
Volume83
Issue number19
DOIs
StatePublished - Nov 10 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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