Widely tunable terahertz source based on intra-cavity frequency mixing in quantum cascade laser arrays

Aiting Jiang, Seungyong Jung, Yifan Jiang, Karun Vijayraghavan, Jae Hyun Kim, Mikhail A. Belkin

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

17 Zitate (Scopus)

Abstract

We demonstrate a compact monolithic terahertz source continuously tunable from 1.9 THz to 3.9 THz with the maximum peak power output of 106 μW at 3.46 THz at room temperature. The source consists of an array of 10 electrically tunable quantum cascade lasers with intra-cavity terahertz difference-frequency generation. To increase fabrication yield and achieve high THz peak power output in our devices, a dual-section current pumping scheme is implemented using two electrically isolated grating sections to independently control gain for the two mid-IR pumps.

OriginalspracheEnglisch
Aufsatznummer261107
FachzeitschriftApplied Physics Letters
Jahrgang106
Ausgabenummer26
DOIs
PublikationsstatusVeröffentlicht - 29 Juni 2015
Extern publiziertJa

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