1978
DOI: 10.1063/1.89951
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Internal cw parametric upconversion

Abstract: The first demonstration of cw parametric upconversion inside a laser’s optical cavity is reported. Infrared radiation λ=3.39 μm was upconverted using a 5145-Å argon laser pump and a lithium niobate crystal.

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Cited by 14 publications
(14 citation statements)
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“…For example the process x → ν e e + e − γ operates at a rate α/2π relative to the decay x → ν e e + e − and would have generated a γ ray burst which was not observed by the SMM satellite [25]. When combined with other arguments relating to energy deposition inside the supernova [26], as well as experimental bounds on fast ν τ decays [8,9], this rules out all lifetimes shorter than ∼ 10 8 s [27], forbidding the entire solution range for doublet neutrinos.…”
mentioning
confidence: 99%
“…For example the process x → ν e e + e − γ operates at a rate α/2π relative to the decay x → ν e e + e − and would have generated a γ ray burst which was not observed by the SMM satellite [25]. When combined with other arguments relating to energy deposition inside the supernova [26], as well as experimental bounds on fast ν τ decays [8,9], this rules out all lifetimes shorter than ∼ 10 8 s [27], forbidding the entire solution range for doublet neutrinos.…”
mentioning
confidence: 99%
“…2 Note that large values of µ ∼ O (1 TeV) can be obtained naturally in mSUGRA from the requirement of radiative electroweak symmetry breaking [6], while very large values of tan β ∼ O(50) are favored if one requires Yukawa coupling unification at the GUT scale; see Ref.…”
Section: Higgs Production In Association With Stausmentioning
confidence: 99%
“…One method to enhance the efficiency has been intra-cavity upconversion. This was first demonstrated using lasers [4], but the efficiency was here limited by the intra-cavity loss originating from absorption in the nonlinear crystal. The (non-imaging) upconversion efficiency was reported to be 0.38% at best.…”
Section: Introductionmentioning
confidence: 99%
“…Upconversion has been investigated for decades but with a particularly strong focus in the late 1960s to mid 1980s [1][2][3][4][5][6][7]. However, one important parameter limiting the applications of the upconversion process has been the upconversion efficiency.…”
Section: Introductionmentioning
confidence: 99%
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