2/3 octave Si/SiO2 infrared dispersive mirrors open new horizons in ultrafast multilayer optics

Vladimir Pervak*, Tatiana Amotchkina, Qing Wang, Oleg Pronin, Ka Fai Mak, Michael Trubetskov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

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 Cr:ZnS/Cr:ZnSe femtosecond lasers and amplifiers. The mirrors open a new avenue in the development of ultrafast dispersive optics operating in the infrared spectral range.

Original languageEnglish
Pages (from-to)55-62
Number of pages8
JournalOptics Express
Volume27
Issue number1
DOIs
Publication statusPublished - 7 Jan 2019

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