Influence of gold nanoparticles on optically stimulated effects in TeO2–ZnO and GeO2–PbO amorphous thin films

Peculiarities of the outside influences on all-optical poling

“…By using the filter systems another component of the frequencies of the laser radiation in each channel was attenuated by 10 10 . The fundamental and second harmonic radiation components (a ω and a 2ω beams, see in Figure 1) were linearly polarized in the plane of the convergence and focused by a lens to intersect inside the investigated glass sample.…”

“…The changes in the optical properties of the mediums are presented in many observed phenomena found experimentally, for example, photo-induced second harmonic generation 1,2 (PSHG) and degenerate amplification of low light signals of sub-harmonic 4 inside the formed gratings with the nonlinear polarizability χ (2) , which appear due to the optical poling of the isotropic mediums; Bragg self-diffraction and constructive light scattering 5 from the induced modulations Δn of the refractive index due to the OP; light-electric instability and stimulated increase in the anisotropy due to the OP and etc. The possibility of the OP of different isotropic media (glasses and waveguides, fibers, polymer consisted and hybrid organic-nonorganic films [2][3][4][5][6][7][8][9][10][11][12][13][14][15] ) has been shown by now. The observed phenomenon of the all-optical poling and the processes of the conversion of a radiation in the transformed media attract attention of scientists both from the point of view of fundamental scientific research and due to the possibility of the obtaining new broadband optoelectronic devises for laser optics, microscopy and bio-photonics.…”

PbO–GeO2 rare earth doped glasses with silver nanoparticles as materials for IR laser triggers

“…Recently it was shown that PbO-GeO 2 (PGO) glasses are interesting for photoinduced piezooptical effects [6]. Because the principal effects for the nonlinear optical effects in the nano composites are the flattered bands and the nanotapping levels [7] we have tried to modify the mentioned parameters by thermoheating the samples in the present work.…”