Amplification, optical parametric

Shirakawa A, Sakane I and Kobayasi T 1998 Pulse-front-matched optical parametric amplification for sub-10 fs pulse generation tunable in the visible and near infrared Opt. Lett. 23 1292-4... 

Greenfield S R and Wasielewski M R 1995 Near-transform-limited visible and near-IR femtosecond pulses from optical parametric amplification using Type II p-barium borate Opt. Lett. 20 1394-6... 

Schematic diagrams of modem experimental apparatus used for IR pump-probe by Payer and co-workers [50] and for IR-Raman experiments by Dlott and co-workers [39] are shown in figure C3.5.3. Ultrafast mid-IR pulse generation by optical parametric amplification (OPA) [71] will not discussed here. Single-colour IR pump-probe or vibrational echo experiments have been perfonned with OP As or free-electron lasers. Free-electron lasers use...

Non-linear optical interactions occur in materials with high optical intensities and have been used to produce coherent light over a wide range of frequencies from the far infra-red to the ultra-violet. The three wave mixing process is of particular interest as it can be used for optical parametric amplification and optical second harmonic generation (SHG) and occurs in non-centrosymmetric materials. 

Zeidler, D., Witte, T., Proch, D., and Motzkus, M. 2001b. Optical parametric amplification of a shaped white-light continuum. Opt. Lett. 26(23) 1921-23. 

Kim et al. [22] have used vibrational sum-frequency generation spectroscopy (SFG) to characterize the surfaces of (3-HMX single crystals, as well as the interface between HMX and the copolymer Estane. SFG is a nonlinear vibrational spectroscopic technique, related to optical parametric amplification that selectively probes vibrational transitions at surfaces and interfaces. Compared with bulk HMX, the surface vibrational features are blueshifted and observed splittings are larger. The technique may have application to detection of explosive residues on surfaces. 

Yakovlev VV, Kohler B, Wilson KR. Broadly tunable 30-fs pulses produced by optical parametrical amplification. Opt Lett 1994 19 2000-2002. 

The most common technology used today to produce intense pulses at wavelengths other than 800 nm and its harmonics is optical parametric amplification (OPA) (72). In an OPA, a signal laser pulse at frequency ms propagates through a nonlinear crystal along with an intense pump pulse at... 

Petrov V, Noack F. Mid-infrared femtosecond optical parametric amplification in potassium niobate. Opt Lett 1996 19 1576-1578. 

The induction of parametric oscillation in a resonator yields optical parametric amplification. 

Bortz, M. L., Arbore, M. A., and Fejer, M. M., Quasi-phase-matched optical parametric amplification and oscillation in periodically poled LiNbOj waveguides, Opt. Lett., 20, 49-51 (1995). 

Polymeric materials are playing an increasingly important role in electronic and photonic applications ". This includes application in active devices utilizing optical effects attributable to the nonlinear polarization of the medium, A number of applications such as frequency mixing, second harmonic generation, optical bistability, optical parametric amplification and oscillation, electrooptic and all optical switching and modulation etc. have been proposed. 

This is an alternative solution to a tunable laser source in the optical frequency range. Here a powerful single frequency radiation (pump) is parametrically converted into equally powerful coherent radiation tunable over a wide optical frequency range (signal and idler). In its simplest version, which is also the most useful one, it is based on the optical parametric amplification of noise photons of frequencies (Wj and 0)2 provided by the dissociation of a pump photon of frequency o)p such that 0) = 0) + 0D2, the selection of a particular frequency pair being made through the phase-matching condition... 

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