Refractive Index Determinations of Glass Fragments

Refractive Index Determinations of Glass Fragments

Refractive Index Determinations of Glass Fragments-- A Simplified Procedure

Gradient of refractive index (GRIN) effect in photo-thermo-refractive glass

Photo-thermo-refractive (PTR) glass is a photosensitive multicomponent silicate glass containing photosensitive agents such as cerium and silver. Photoinduced crystalline phase precipitation results in refractive index variations in exposed areas of PTR glass, which has been successfully used for phase hologram recording. Photosensitivity being the result of the partial absorption of the exposi...

Comparison of Spectral Index Determinations

The index n of a power law power spectrum of primordial density fluctuations, P (k) ∝ k, has been estimated using many different techniques. The most precise compare the COBE 1 DMR large angular scale ∆T to the amplitude of the large scale structure, but these are also the most model-dependent. The COBE DMR ∆T has also been compared to the degree-scale ∆T from several experiments. And finally, ...

Comparative study of photo-induced variations of X-ray diffraction and refractive index in photo-thermo-refractive glass

Spontaneous and photo-induced crystallization have been investigated in fluorinated silicate glass by means of X-ray diffraction and optical interferometry. This glass is a photo-sensitive material for high-efficiency phase volume hologram recording. Variations of a refractive index in this glass are controlled by UV irradiation followed by a thermal development which is photo-thermo-refractive...