by on 5 hours ago
Optical parametric oscillation (OPO), era of a signal and idler wave using a parametric amplifier in a resonator (with no signal enter). Optical parametric technology (OPG), like parametric oscillation however with out a resonator, using a very high acquire instead. Spontaneous parametric down-conversion (SPDC), the amplification of the vacuum fluctuations in the low-achieve regime. Optical rectification (OR), era of quasi-static electric fields. Nonlinear gentle-matter interplay with free elect...
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by on February 22, 2025
Hachfeld, B.; Schippmann, U. (2002). Incidence and density of Harpagophytum procumbens in Namibia and South Africa. Proceedings of the Regional Devil’s Claw Conference 26-28 February 2002. Windhoek, Namibia (Ed CRIAASA-DC). Hachfeld, B. (2003). Ecology and utilization of Harpagophytum procumbens (devil's claw) in southern Africa. Federal Company for Nature Conservation, Bonn. Strobach, M., Cole, D. & Schippmann, U. (2007). Inhabitants dynamics and sustainable harvesting of the medicinal plant Ha...
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