A new nonlinear optical crystal: Bi₂O₂(OH)(NO₃)

Abstract

The nonlinear optical (NLO) properties of Bi 2 O 2 (OH)(NO 3 ) crystals have been reported for the first time. Bi 2 O 2 (OH)(NO 3 ) crystals with dimensions of 1.3×1.2×0.1 mm 3 have been grown by hydrothermal method, and the crystals characterized by X-ray powder diffraction (XRD), SEM and IR. The measured second harmonic generation (SHG) effect of Bi 2 O 2 (OH)(NO 3 ) was about 7 times that of KDP. The mechanism responsible for the large SHG of Bi 2 O 2 (OH)(NO 3 ) was explained according to its structure.

Cooperation of Three Chromophores Generates the Water‐Resistant Nitrate Nonlinear Optical Material Bi3TeO6OH(NO3)2

“…The bands around 3500 cm −1 and those in the range of 800–1500 cm −1 confirmed the presence of hydroxyl groups and [NO 3 ] − groups, respectively. These assignments are in agreement with those previously reported ,…”

Experimental and theoretical studies of second harmonic generation for Bi2O2[NO3(OH)]

“…[22]. The effects of temperature, reaction time, pH value of the solution and mineralizing agents for the quality of the product was studied in detail [27]. According to reference, the utilized pH value is 6-7.…”

“…Therefore, only a few bismuth basic nitrates have been fully and correctly characterized [21][22][23][24][25][26]. The bismuth oxynitrate Bi 2 O 2 [(NO 3 )(OH)] (BINO), which contains [Bi 2 O 2 ] 2+ layers associated with (NO 3 ) À and OH À anions, crystallizes in the noncentersymmetric (and polar) space group Cmc2 1 [22], thus exhibits a SHG effect [27]. In this The structural characteristics and optical properties of bismuth nitrate Bi 2 O 2 [NO 3 (OH)] (BINO) are investigated by experimental in combination with theoretical studies.…”

Sr2(OH)3NO3: the first nitrate as a deep UV nonlinear optical material with large SHG responses

“…[32][33][34][35][36] However, investigations of [NO 3 ] À -containing materials with NLO properties have scarcely been systematically studied in contrast to the successful exploration of borates and carbonates. [37][38][39][40][41][42][43] Even to date, there have been no nitrates which can act as deep-UV NLO materials. Li 44 has calculated that the microscopic second-order susceptibility b (2) of the [NO 3 ] À group is larger than those of the [BO 3 ] 3À and [CO 3 ] 2À groups.…”