Highly transparent AgGaS2 single crystals, a compound for mid-IR laser sources, using a combined static/dynamic vacuum annealing method

Growth of CdSiP2 single crystals by self-seeding vertical Bridgman method

“…There are two classic types of chalcopyrite infrared NLO crystals with the same space group of I4 2d. One is the A I B III C VI 2 compounds, such as AgGaS 2 and AgGaSe 2 [1][2][3][4]. They have a larger band gap and offer low absorption loss.…”

Non-stoichiometry and point native defects in non-oxide non-linear optical large single crystals: advantages and problems

“…Indeed, based on this P S 2 – T diagram, the annealing procedure of the as-grown AGS crystals was optimized up to the transmission of the annealed crystals being close to the theoretical value. 13…”

Homogeneity characterization in AgGaGeS4, a single crystal for nonlinear mid-IR laser applications

“…Thermal annealing experiments were performed in order to improve the quality of the asgrown crystals. Annealing was performed under static vacuum (the principle is described in [52]). AgGaGeS4 single crystals and polycrystalline powder (grinded AgGaGeS4) were introduced in the annealing ampoule which was then closed and evacuated.…”

“…In previous part, crystal's inhomogeneities were outlined and solutions to improve growth process and crystal quality were presented. However, another way to improve crystal quality is to perform thermal annealing treatments post-growth process [25,52,59]. In the present work, annealing was performed under static vacuum with addition of polycrystalline powder because of volatility of GeS2.…”