Kerr gating

Figure 3.14. Picosecond Kerr gated time-resolved resonance Raman (ps-K-TR ) spectra of the ICT state of DMABN (a), DMABN-N (b) and DMABN-dg (c) obtained by 267 nm pnmp, 330nm probe in methanol at 50ps delay time. (Reprinted with permission from reference [28]. Copyright (2001) American Chemical Society.)...

Employing all of the TR results in conjunction with results from femtosecond time-resolved transient absorption (fs-TA) and femtosecond time-resolved Kerr gated fluorescence (fs-KTRF) experiments enables a reaction mechanism to be developed... 

Kosumi, D., K. Yanagi, R. Fujii, H. Hashimoto, and M. Yoshizawa. 2006. Conjugation length dependence of relaxation kinetics in beta-carotene homologs probed by femtosecond Kerr-gate fluorescence spectroscopy. Chem. Phys. Lett. 425 66-70. 

IV. Non-scanning Picosecond Fluorescence Kerr Gate Microscope.63... 

Contrary to the above-described detection methods, fluorescence up-conversion and optical Kerr gate techniques readily achieve picosecond/femtosecond time resolution (Ippen and Shank 1975 Shah 1988 Takeuchi and Tahara 1998), because they are in the pump-probe measurement, in principle. 

FIGURE 3.2 Principle of (a) fluorescence up-conversion and (b) optical Kerr gate. 

IV. NON-SCANNING PICOSECOND FLUORESCENCE KERR GATE MICROSCOPE... 

A. Apparatus of the Non-Scanning Picosecond Fluorescence Kerr Gate Microscope... 

A schematic diagram of the non-scanning picosecond fluorescence Kerr gate microscope is depicted in Figure 3.9a. A femtosecond Ti sapphire laser with regenerative amplifier provided femtosecond pulses (800 nm, 1 mJ, 110 fs) at a... 

FIGURE 3.9 Schematic diagram of the non-scanning picosecond fluorescence Kerr-gate microscope, (a) The microscope part, and (b) the Kerr gate part. (From Fujino, T., Fujima, T., and Tahara, T., Appl. Phys. Lett., 87 131105-131107, 2005. Used with permission.)... 

Fujino, T, Fujima, T, and Tahara, T. 2005. Picosecond Time-Resolved Imaging by Nonscaiming Fluorescence Kerr Gate Microscope. Appl. Phys. Lett. 87 131105. 

Ippen, E. R, and Shank, C. V. 1975. Picosecond response of a high-repetition-rate CS2 optical Kerr gate. Appl. Phys. Lett. 26 92. 

In the optical Kerr gate experiment6 (Fig. 5), the sample is subjected to a linearly polarized pump beam that induces optical birefringence (and... 

Fig. 5. Setup of an optical Kerr gate experiment. (Adapted with permission from R. L. Sutherland, Handbook of Nonlinear Optics, 1996, p. 429. Copyright 1996 Marcel Dekker, New York).

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