Near-infrared to ultra-violet frequency conversion in chalcogenide metasurfaces.
Abstract
Chalcogenide photonics offers unique solutions for a broad range of applications from
mid-infrared sensing to integrated, ultrafast, ultrahigh-bandwidth signal processing.
However, to date its usage has been limited to the infrared part of the electromagnetic
spectrum, thus avoiding ultraviolet and visible ranges due to absorption of chalcogenide
glasses. Here, we experimentally demonstrate and report near-infrared to ultraviolet
frequency conversion in an As2S3-based metasurface, enabled by a phase locking mechanism between the pump and the
inhomogeneous portion of the third harmonic signal. Due to the phase locking, the
inhomogeneous component co-propagates with the pump pulse and encounters the same
effective dispersion as the infrared pump, and thus experiences little or no absorption,
consequently opening previously unexploited spectral range for chalcogenide glass
science and applications, despite the presence of strong material absorption in this
range.
Type
Journal articlePermalink
https://hdl.handle.net/10161/24726Published Version (Please cite this version)
10.1038/s41467-021-26094-1Publication Info
(2021). Near-infrared to ultra-violet frequency conversion in chalcogenide metasurfaces. Nature communications, 12(1). pp. 5833. 10.1038/s41467-021-26094-1. Retrieved from https://hdl.handle.net/10161/24726.This is constructed from limited available data and may be imprecise. To cite this
article, please review & use the official citation provided by the journal.
Collections
More Info
Show full item recordScholars@Duke
Jiannan Gao
Student
Natalia Litchinitser
Professor of Electrical and Computer Engineering
Litchinitser holds a Ph.D. Electrical Engineering from the Illinois Institute of Technology.
Her primary focus is on metamaterials that manipulate the visible portion of the electromagnetic
spectrum. Litchinitser began her work with metamaterials as a research scientist at
the University of Michigan, and joined the faculty at the University of Buffalo in
2008. Over the next decade, she became one of the leading experts in optical metamaterials.
Currently, Litchinitser’s research focus
Alphabetical list of authors with Scholars@Duke profiles.
Articles written by Duke faculty are made available through the campus open access policy. For more information see: Duke Open Access Policy
Rights for Collection: Scholarly Articles
Works are deposited here by their authors, and represent their research and opinions, not that of Duke University. Some materials and descriptions may include offensive content. More info