AI Article Synopsis
- First observation of supercontinuum (SC) generation in single semiconductor nanoribbons (NRs) is reported.
- Utilizing a continuous wave (CW) 532-nm pump light, SC generation occurs at a remarkably low threshold of sub-milliwatts, significantly lower than previous SCs in glass fibers.
- The unique material properties and geometries of the nanoribbons enable efficient waveguiding, leading to potential applications in spectroscopic analysis, biological imaging, and material research.
Article Abstract
We report the first observation of supercontinuum (SC) generation in single semiconductor nanoribbons (NRs). By launching a continuous wave (CW) 532-nm pump light along a 200-μm-length CdS NR for waveguiding excitation, SC generation is realized with a threshold down to sub-milliwatt level, which is ~3 orders lower compared with previous CW-pumped SC generated in glass fibers. The low threshold is benefitted from the favorable material properties and waveguide geometries including high Raman gains, strong light confinement, more optical guided modes and phonon modes. Our work paves the way to low-threshold nanoscale SC sources and may find widespread applications ranging from spectroscopic analysis and biological imaging to material research.
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| http://dx.doi.org/10.1364/OE.20.008667 | DOI Listing |
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