2/3 octave Si/SiO2 infrared dispersive mirrors open new horizons in ultrafast multilayer optics.
Opt Express
; 27(1): 55-62, 2019 Jan 07.
Article
em En
| MEDLINE
| ID: mdl-30645358
ABSTRACT
Dispersive mirrors operating in a broadband infrared spectral range are reported for the first time. The mirrors are based on Si/SiO2 thin-film materials. The coatings exhibit reflectance exceeding 99.6% in the spectral range from 2 to 3.2 µm and provide a group delay dispersion of -100 fs2 and -200 fs2 in this range. The fabricated mirrors are expected to be key elements of CrZnS/CrZnSe femtosecond lasers and amplifiers. The mirrors open a new avenue in the development of ultrafast dispersive optics operating in the infrared spectral range.
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MEDLINE
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En
Ano de publicação:
2019
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Article