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Title: Broadband negative group velocity dispersion in all-dielectric metamaterial and its role in supercontinuum generation
Authors: Vaity, Pravin
Sagar, Rishav
Dharmadhikari, J.A.
+3 Co-Authors
Issue Date: Jan-2021
Publisher: Optical Society of America
Citation: Optics Letters, 2021, Vol.46, No. 2, p. 182-185
Abstract: All-dielectric metamaterials conforming to an optical reflectionless potential (ORP) offer broadband, omni-directional suppression of reflection. Though they are predicted to possess broadband negative group velocity dispersion (GVD), ultrashort pulse propagation through such materials has not been studied so far, to the best of our knowledge. In this work, we demonstrate negative GVD and group delay dispersion over broadband covering visible to near-infrared wavelengths.We investigate the role of ORP in supercontinuum generation (SC), which is observed to be polarization independent. The negative GVD in ORPs is interesting for pulse compression, phase compensation, dispersion engineering, and controlled SC generation.
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: 0146-9592 (print)
1539-4794 (online)
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Copyright: 2021 Optical Society of America
Appears in Collections:Research Papers (LAMP)

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