Array of tiny quantum cascade lasers provides tunable mid-IR output

Benjamin G. Lee, Mikhail A. Belkin, Federico Capasso

Publikation: Beitrag in PeriodikumArtikel

Abstract

Quantum cascade lasers are the only semiconductor lasers that can operate at room temperature at 3-15μm. Although they have similar appearance with diode lasers, they have different operation principle. In a quantum cascade laser, the laser transition occurs between electron levels in the conduction band of a semiconductor superlattice. By changing the thicknesses of the quantum wells and barriers in the superlattice, one can engineer the energy levels to produce a laser transition at the desired wavelength. Quantum cascade lasers are more compact and portable than Fourier transform infrared spectrometers and are not costly as compared to laser diodes.

OriginalspracheEnglisch
Seiten70-72+74-76
Band42
Nummer5
FachbuchPhotonics Spectra
PublikationsstatusVeröffentlicht - Mai 2008
Extern publiziertJa

Fingerprint

Untersuchen Sie die Forschungsthemen von „Array of tiny quantum cascade lasers provides tunable mid-IR output“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren