| Gerz, Daniel; Schweinberger, Wolfgang; Butler, Thomas Patrick; Siefke, Thomas; Heusinger, Martin; Amotchkina, Tatiana; Pervak, Vladimir; Zeitner, Uwe; Pupeza, Ioachim (2019): Mid-infrared long-pass filter for high-power applications based on grating diffraction. In: Optics Letters, Vol. 44, No. 12: pp. 3014-3017 |
Full text not available from 'Open Access LMU'.
DOI: 10.1364/OL.44.003014
Abstract
A gold-coated silicon grating has been developed, enabling efficient spatial separation of broadband mid-infrared (MIR) beams with wavelengths >5 mu m from collinearly propagating, broadband, high-power light in the near-infrared (NIR) spectral range (centered at 2 mu m). The optic provides spectral filtering at high powers in a thermally robust and chromatic-dispersion-free manner such as that necessary for coherent MIR radiation sources based on parametric frequency down-conversion of femtosecond MR lasers. The suppression of a > 20 W average-power, 2 mu m driving pulse train by three orders of magnitude, while retaining high reflectivity of the broadband MIR beam, is presented. (C) 2019 Optical Society of America
| Item Type: | Journal article |
|---|---|
| Faculties: | Physics |
| Subjects: | 500 Science > 530 Physics |
| ISSN: | 0146-9592 |
| Language: | English |
| ID Code: | 82792 |
| Deposited On: | 15. Dec 2021 15:03 |
| Last Modified: | 15. Dec 2021 15:03 |
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