Regensburg 2019 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 12: HL Poster I

HL 12.59: Poster

Montag, 1. April 2019, 17:30–20:00, Poster E

A high power (11 W), tunable (1.45 - 1.65 µm) OPCPA for THz generation in organic crystals — •Ivanka Grguras, Torsten Golz, Michael Schulz, Jan Heye Buss, Robert Riedel, and Mark James Prandolini — Class 5 Photonics GmbH, Notkestraße 85, 22607 Hamburg, Germany

Owing to their high second-order nonlinear susceptibility, organic crystals have gained tremendous interest as THz generators. Recently high field THz generation in several organic crystal have been demonstrated [1-3]. Here we demonstrate a high power, tunable (1.45 - 1.65 µm) OPCPA with pulse duration of < 36 fs and a repetition rate of 350 kHz for THz generation using organic crystals. To enhance the flexibility of this system, a second synchronized probe channel is available, delivering compressed pulses at 850 nm with <15 fs.

[1] M. Savoini et al., THz Generation and Detection by Fluorenone Based Organic Crystals, ACS Photonics 5, 671-677 (2018)
[2] A. Curcio et. al., Terahertz-based retrieval of the spectral phase and amplitude of ultrashort laser pulses, Opt. Lett. 43, 783 (2018)
[3] C. Vicario et. al., Generation of 1.5-octave intense infrared pulses by nonlinear interactions in DAST crystal, J. Opt. 17, 094005 (2015)