9 Papers
43 Citations
D. Wei is an academic researcher from University of Nice Sophia Antipolis. The author has contributed to research in topics: Liquid crystal & Slow light. The author has an hindex of 5, co-authored 9 publications. Previous affiliations of D. Wei include Centre national de la recherche scientifique & Xiamen University.
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Papers
Review of Fluorescence Suppression Techniques in Raman Spectroscopy
D. Wei,Shuo Chen,Quan Liu +2 more
TL;DR: Raman spectroscopy is an important and powerful technique for analyzing the chemical composition of biological or nonbiological samples in many fields as mentioned in this paper, and several different techniques have been explored for this purpose.
Two-wave mixing in chiral dye-doped nematic liquid crystals.
TL;DR: The photo-induced spatial modulation of the chiral structure, together with the diffusion anisotropy of the mixture, determine a relatively fast response time, a spatial resolution of 1 μm, and a maximum gain for circularly polarized interacting beams.
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Slow and stored light by photo-isomerization induced transparency in dye doped chiral nematics.
TL;DR: This work presents a different mechanism for slowing and storing light, based on photo-isomerization induced transparency of azo-dye molecules hosted in a chiral liquid crystal structure, which enables the storage of light pulses with a significant retrieval after times much longer than the medium response time.
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Phase conjugation and slow light in dye-doped chiral nematics
TL;DR: The creation of the light-induced dynamical grating is described and the amplitude of the phase-conjugate wave is shown to follow the changes of the input signal, hence providing efficient distortion correction.
10
Slow light in dye-doped chiral liquid crystals
TL;DR: In this article, the authors demonstrate slow light in dye-doped chiral liquid crystals, where a circularly polarized pump and a pulse beam interact in the cell, the output pulse is delayed thanks to the dispersive properties of the beam coupling occurring in the medium.
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