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Mid-infrared supercontinuum generation in As₂S₃-silica “nano-spike” step-index waveguide

Granzow, N.; Schmidt, M. A.; Chang, W.; Wang, L.; Coulombier, Q.; Troles, J.; Toupin, P.; Hartl, I.; Lee, K. F.; Fermann, M. E.; Wondraczek, L.; Russell, P. St.J.


Efficient generation of a broad-band mid-infrared supercontinuum spectrum is reported in an arsenic trisulphide waveguide embedded in silica. A chalcogenide “nano-spike”, designed to transform the incident light adiabatically into the fundamental mode of a 2-mm-long uniform section 1 µm in diameter, is used to achieve high launch efficiencies. The nano-spike is fully encapsulated in a fused silica cladding, protecting it from the environment. Nano-spikes provide a convenient means of launching...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.21.010969


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