Optical properties of PbIn6Te10 in the long-wave IR. (10th November 2016)

• Record Type: Journal Article
• Authors: Andreev, Yu M; Badikov, V V; Ionin, A A; Kinyaevskiy, I O; Klimachev, Yu M; Kotkov, A A; Lanskii, G V; Svetlichnyi, V A
• Is Part Of: Laser physics letters. Volume 13:Number 12(2016:Dec.)
• Publication Date: 2016-11-10
• Subjects: nonlinear crystal -- difference frequency generation -- far-IR range -- terahertz range -- gas lasers; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-2011/13/12/125405
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: Optical properties of nonlinear PbIn6 Te10 (PIT) crystal were studied for the first time within 30–1200 µ m (0.2–15 THz) by FTIR and THz-TDS. It was found that PIT possesses the most attractive transparency features for efficient generation of long-wave mid-IR emission including 20–60 µ m (5–15 THz) region by optical rectification. This crystal is also found useful for phase matched DFG generation into the long-wave THz region. In particular, by model study phase matched down-conversion of CO and CO2 laser lines into 130–1200 µ m (0.3–2.3 THz) range is shown possible by ooe and eoe type of three wave interaction. Noncritical 90° phase matching for eoe type of interactions can be realized by selecting samples with specified composition.