D. Josse

TL;DR: In this paper, 2-amino-5-nitro-pyridinium-dihydrogen phosphate (2A5NPDP) was designed to display high NLO efficiency by incorporating highly polarizable organic molecules arranged in a polar order between phosphate polyanion sheets.

TL;DR: In this article, a new molecular engineering strategy is proposed that favors the packing of charge-transfer conjugated molecules to enhance their crystalline quadratic nonlinear efficiency, which is shown to have a powder second-harmonic generation efficiency of the same order as that of N-(4-nitrophenyl)-L-prolinol (NPP), i.e., more than 2 orders of magnitude above that of urea.

TL;DR: In this article, the second harmonic generation experiments were performed in alternate multilayers of two non-linear molecules, the hydrophobic chain being grafted onto the acceptor group of the first species A and onto the donor group of B. The second harmonic intensity with respect to the number of active layers was interpreted in terms of the disorder appearing in the upper monolayer of the Langmuir-Blodgett film.

TL;DR: In this paper, a 1.9mm-thick nonlinear molecular crystal of N-(4-nitrophenyl)-l-prolinol was pumped at a wavelength of 0.5927 μm and a pulse duration of 1 ns (FWHM).

TL;DR: In this paper, a thorough investigation of non-collinear phase-matching configurations for second-harmonic and sum-frequency generations is performed and leads to the concept of one-beam noncritical nonlinear phase matching, which may be of great practical interest in optical parametric amplification and oscillation processes.