Midinfrared supercontinuum generation from 2 to 6 μm in a silicon nanowire
By Neetesh Singh, D. Hudson, Yi Yu, Christian Grillet, Stuart Jackson, A. Casas-Bedoya, A. Read, P. Atanackovic, S. Duvall, S. Palomba and 4 more. 2015
175 citations recorded by the source corpus.
Silicon has attracted great interest as a platform for both linear and nonlinear integrated photonics for over 15 years. While its primary applications have been in the telecom window (near 1.5 μm), the capability of exploiting its full transparency window to 8 μm in the mid-IR is highly attractive, since this will open it up to entirely new applications in fields such as spectroscopy, chemical and biological sensing, and free-space communications. However, while silicon-on-insulator has shown great promise just beyond the telecommunications window [to the shortwave IR band (2.5 μm)], its wavelength range has been limited to < 4 μm by absorption in the silica cladding layer. Here, we demonstrate octave-spanning supercontinuum generation in silicon, covering a continuous spectral range from 1.9 to beyond 6 μm in dispersion-engineered silicon-on-sapphire (SOS) nanowires. This represents both the widest spectrum and longest wavelength generated to date in any silicon platform, and establishes SOS as a promising new platform for integrated nonlinear photonics in the mid-IR.
Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/8d614343438a6651faebf06102aa886a2626a079
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In Atomic and Molecular Physics, and Optics
- Arnan Mitchell
- David J. Moss
- Christelle Monat
- Christian Grillet
- Roberto Morandotti
- Xingyuan Xu
- Jiayang Wu
- Mengxi Tan
In Biomedical Engineering
In Electrical and Electronic Engineering
- Arnan Mitchell
- David J. Moss
- Christelle Monat
- Christian Grillet
- Roberto Morandotti
- Xingyuan Xu
- Jiayang Wu
- Mengxi Tan
Citations in the corpus
- Mid-infrared octave spanning supercontinuum generation to 8.5 μm in silicon-germanium waveguides (2018, methodology): “By replacing silica with sapphire in the silicon-on-sapphire (SOS) platform, a supercontinuum covering more than an octave in the mid-infrared was demonstrated for the first time on any CMOS-compatible platform [29].”