نتایج جستجو برای: induced absorption
تعداد نتایج: 1102649 فیلتر نتایج به سال:
An experimental demonstration of a dynamic decrease of the optical band gap of bulk n-InSb induced by picosecond, midinfrared laser pulses is reported. This occurs as a result of laser heating of the quiescent electron distribution by free-carrier absorption. The hot electrons vacate low-energy states near the conductionband minimum, unblocking terminal states for two-photon absorption across t...
'Klemp P, Staberg B, Madsbad S, Kolcndorf K. Smoking reduces insulin absorption from subcutaneous tissue. Br MedJ' 1982;284:237. 2 Binder C. Absorption of injected insulin. Acta Pharmacol Toxicol (Copenh) 1969 ;27(suppl 2): 1-84. 3Berger M, Cuppers HJ, Hegner H, Jorgens V, Berchtold P. Absorption kinetics and biologic effects of subcutaneously injected insulin preparations. Diabetes Care 1982;5...
We describe the use of two-photon absorption in submicron silicon wire waveguides for all-optical switching by cross-absorption modulation. Optical pulses of 3.2 ps were successfully converted from high power pump to low power continuous-wave signal with a fast recovery time. High speed operation was based on the induced optical absorption from non-degenerate two-photon absorption inside the wa...
This paper reports on the absorption of molecular oxygen in the region of the A-band near 760 nm under atmospheric conditions relevant for satellite retrieval studies. We use pulsed laser cavity ring-down spectroscopy with a narrow bandwidth laser and use pressure scans to increase the accuracy of the measured oxygen extinction coefficients. Absolute binary absorption coefficients in minima bet...
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