White-light generation

There are numerous applications of white light generation and filamentation that span across disciplines, such as time-resolved broadband spectroscopy, generation of few cycle pulses [37], LIDAR [31], material modification [2], and... 

The experimental configuration of the pump-probe experiment is similar to Ref. [5]. A home built non-collinear optical parametric amplifier (nc-OPA) was used as a pump, providing Fourier-transform-limited 30 fs pulses, which could be spectrally tuned between 480-560 nm. In all experiments white-light generated in a sapphire crystal using part of the fundamental laser (800 nm), was used as probe light. In the pump-probe experiments the pump was tuned to the S2 0-0 band for carotenoids with n>l 1. In the case of M9, it was not possible to tune the nc-OPA to its 0-0 transition, and hence another nc-OPA tuned to 900 nm was frequency doubled and used for excitation. In addition to conventional transient absorption pump-probe measurements, we introduce pump-deplete-probe spectroscopy, which is sensitive to the function of an absorbing state within the deactivation network. In this technique, we... 

The measured data was corrected for group velocity dispersion by comparison with white light generated in water under the same configuration, yielding in the end a two dimensional array of the fluorescence intensity as a function of frequency and time. Singular value decomposition and deconvolution of the obtained decays was used to reconstruct the spectral decay which would correspond to delta pulse excitation. S(t) was calculated from this processed data. 

Self-Phase Modulation and White-Light Generation... 

We expect that our dynamical theory based on the density mauix formalism can be useful in modeling other fundamental and applied problems of nonlinear optics like spectral-hole burning, self-focusing, white light generation, the dynamics of the spectral profiles of amplified stimulated emission etc. The scope is certainly wide for future researh in these areas. 

Baev et al. review a theoretical framework which can be useful for simulations, design and characterization of multi-photon absorption-based materials which are useful for optical applications. This methodology involves quantum chemistry techniques, for the computation of electronic properties and cross-sections, as well as classical Maxwell s theory in order to study the interaction of electromagnetic fields with matter and the related properties. The authors note that their dynamical method, which is based on the density matrix formalism, can be useful for both fundamental and applied problems of non-linear optics (e.g. self-focusing, white light generation etc). 

White-light generation with applications in chemistry, biology and medicine... 

Wang J, Tanner PA (2010) Upconversion for white light generation by a single componnd. J Am Chem Soc 132 947-949... 

White-light generation by Host Eu ,Mn coupled with UVLEDs... 

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