Properties of arsenic sulfide glass

Abstract

Samples of ar~e n i c s ulfid e glaHS " -ere investigated to clc>lerll1ine the ir che m ical a nd phys ical properties. Amon g the proper ties r eported a re t ile hygros co pici t.I', chemi cal durability, hydroge n e lec trod e fUllc t ioll, ex pansivi ty , clastic nlOduli, modulus of rnpture', hardn ess, transmittance, and indices of re fraction .The main in te rest in "rse n ic s ulfid e glass, for t he prese n t, is for i ts lrnnslIliitance in t he i nfrared. It is transparent, t o infrared energy out to "PPr'Oximately l3 microns. Although its pl\I'8 ic:<1 prope rt ies a re inferior to those of ordi na r.l-s ilicale g ln"e,.; . th('~' nrc s up e rior to t hose of some of the ,wail ab le maleria,b used in infrared o pl ic'_

Highly Anisotropic Mechanical and Optical Properties of 2D Layered As2S3 Membranes

“…Assuming a point force deflection at the center of the cavity, we obtain the following equation for the force–distance relation of the rectangular membrane (see SI 4):where α( a , b ), C 2 ( a , b ), and c 0 ( a , b ) are geometry-dependent factors and N 0 is the intrinsic pretension. Using Poisson’s ratio ν 2 = 0.094, 49,50 we fit eq 1 to the data and extract effective Young’s moduli along the set of angles to the crystalline axes. We take into account measured thickness variations as determined by AFM, which are found to be at most one to two single layers (as seen in Figure 3a), to extract correct values of E eff .…”

Interrelation between shear modulus and the molecular parameters of viscous flow for glass forming liquids

“…As 2 S 3 . Viscosity and the shear modulus data were published by Nemilov [49] and Glaze et al [65], respectively. The structural data on the crystalline form were taken from Vaipolin's review [66]: the mean distance d As-S = 2.23 ± 0.08 Å , the mean angle \S-As-S = a = 104.6 ± 3°.…”

Fully-Tensorial Modeling of Stimulated Brillouin Scattering in Photonic Waveguides

“…Also, the non-diagonal elements c 12 , c 13 , c 23 = λ together with their mirrored components. For thermal oxide, µ = 29.9 GPa, λ =15.4 GPa and ρ = 2.2 g/cm 3 [37], while As 2 S 3 is expectedly softer with µ = 6.2 GPa, λ = 9.78 GPa and ρ = 3.2 g/cm 3 [24], [38].…”