Ultra-broadband near-infrared NOPAs based on the nonlinear crystals BiBO and YCOB
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DOI: 10.1017/hpl.2020.27
Abstract: Abstract We evaluate and demonstrate ultra-broadband near-infrared noncollinear optical parametric amplification in two nonlinear crystals, bismuth borate (BiBO) and yttrium calcium oxyborate (YCOB), which are not commonly used for this application. The spectral bandwidth is… read more here.
Keywords: nonlinear crystals; near infrared; ultra broadband; broadband near ... See more keywords
Saturation regime of THz generation in nonlinear crystals by pumps with arbitrary spectral modulations.
Sign Up to like & getrecommendations! Published in 2020 at "Optics letters"
DOI: 10.1364/ol.386341
Abstract: A self-consistent analytic formalism of the description of saturation effects in optical rectification is provided. It is shown that a nonlinear absorption term arises from this process that is dominant over two-photon absorption, deriving instead… read more here.
Keywords: nonlinear crystals; generation nonlinear; thz generation; saturation regime ... See more keywords
Evaluation of eight nonlinear crystals for phase-matched Terahertz second-order difference-frequency generation at room temperature
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DOI: 10.1364/ome.383548
Abstract: Using terahertz time-domain spectroscopy, we report the principal values of absorption coefficients and refractive indices as a function of wavelength between 0.5 and 2.0 THz of eight attractive nonlinear crystals: YCOB, BNA, LBO, CSP, AGS,… read more here.
Keywords: nonlinear crystals; frequency generation; second order; order difference ... See more keywords