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Resonant electro-optic frequency comb
A low-power, fixed microwave signal in combination with an optical-pump signal generates an optical frequency comb that spans the whole …
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Resonant electro-optic frequency comb
Anomalous blue-shift of terahertz whispering-gallery modes via dielectric and metallic tuning
The vast majority of resonant systems show a red-shift for the resonance frequency when a perturbation, e.g., losses, is introduced to …
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Prism coupling of high-Q terahertz whispering-gallery-modes over two octaves from 0.2 THz to 1.1 THz
We report on prism coupling of high-quality (high-Q) terahertz (THz) whispering-gallery modes (WGMs) in spherical high resistivity …
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Sensitivity limits of millimeter-wave photonic radiometers based on efficient electro-optic upconverters
Conventional ultra-high sensitivity detectors in the millimeter-wave range are usually cooled as their own thermal noise at room …
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Origins of clustered frequency combs in Kerr microresonators
Recent experiments have demonstrated the generation of widely spaced parametric sidebands that can evolve into “clustered” optical …
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Towards terahertz detection and calibration through spontaneous parametric down-conversion in the terahertz idler-frequency range generated by a 795 nm diode laser system
We study a calibration scheme for terahertz wave nonlinear-optical detectors based on spontaneous parametric down-conversion. Contrary …
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Selective Coupling Enhances Harmonic Generation of Whispering-Gallery Modes
We demonstrate second-harmonic generation (SHG) in an x-cut congruent lithium niobate (LN) whispering-gallery mode (WGM) resonator. …
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Optical microcavities: new understandings and developments
Optical microcavities have attracted tremendous interest in both fundamental and applied research in the past few decades, thanks to …
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Polarization-Selective Out-Coupling of Whispering-Gallery Modes
Whispering-gallery mode (WGM) resonators are an important platform for linear, nonlinear, and quantum optical experiments. In such …
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Dielectric tuning and coupling of whispering gallery modes using an anisotropic prism
Optical whispering gallery mode (WGM) resonators are a powerful and versatile tool in many branches of science. Fine-tuning of the …
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