Topic
Supercontinuum
About: Supercontinuum is a research topic. Over the lifetime, 7071 publications have been published within this topic receiving 127671 citations.
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16 May 2004TL;DR: In this paper, the generation of a horizontal array of stable white-light continuum (WLC) filaments in water is observed using a cylindrical plano-convex lens.
Abstract: The generation of a horizontal array of stable white-light continuum (WLC) filaments in water is observed using a cylindrical plano-convex lens. This array is used to demonstrate the phase relationships between adjacent filaments.
46 citations
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TL;DR: A chip-scale f-2f interferometer for carrier-envelope-offset frequency (fCEO) detection is demonstrated by simultaneously producing octave-spanning coherent supercontinuum generation and second-harmonic generation in a single dispersion-engineered silicon nitride waveguide.
Abstract: We demonstrate a chip-scale f−2f interferometer for carrier-envelope-offset frequency (f
CEO
) detection This is enabled by simultaneously producing octave-spanning coherent supercontinuum generation and second-harmonic generation in a single dispersion-engineered silicon nitride waveguide We measure the f
CEO
beatnote of an 80 MHz modelocked pump source with a signal-to-noise ratio of 25 dB Our simple approach for f−2f interferometry enables a straightforward route towards a chip-scale self-referenced frequency comb source that can operate at low pulse energies
46 citations
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TL;DR: In this paper, the authors proposed an ultrabroadband octave-spanning supercontinuum (SC) generation using a suspended germanium-membrane ridge waveguide.
Abstract: Stable octave-spanning supercontinuum (SC) in the mid-infrared (MIR) region finds extensive applications in spectroscopy, metrology, biochemistry, etc The absorption of conventional silicon- or silicon oxide-dominated nonlinear media makes SC generation in MIR region technically challenging In this paper, we propose ultrabroadband MIR-SC generation using a suspended germanium-membrane ridge waveguide We theoretically showed that when pump pulses centered at 48 μm with pulse width at 180 fs and peak power at 800 W are injected into a 4-mm-long proposed ridge waveguide, the SC generated ranges from 196–12 μm (about 26 octaves), extending deep into the “fingerprint” region The first-order coherence is calculated to confirm the stability of the generated SC The performance of the SC-based frequency comb is also investigated by assuming a 100-pulses pump source at a repetition rate of 100 kHz
46 citations
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TL;DR: In this paper, a suspended core microstructured fiber has been fabricated and pumped by nanojoule-level femtosecond pulses, thus resulting in more than 2000-nm bandwidth supercontinuum after a few centimeters of propagation.
46 citations
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TL;DR: The results suggest opportunities for efficient self-collimation, focusing, and reshaping of beams produced by white-light and supercontinuum sources and predict a possibility of multicolor Talbot effect, which is not possible in free space or conventional photonic lattices.
Abstract: We introduce periodic photonic structures where the strength of diffraction can be managed in a very broad frequency range. We show how to design arrays of curved waveguides where light beams experience wavelength-independent normal, anomalous, or zero diffraction. Our results suggest opportunities for efficient self-collimation, focusing, and reshaping of beams produced by white-light and supercontinuum sources. We also predict a possibility of multicolor Talbot effect, which is not possible in free space or conventional photonic lattices.
46 citations