PbCdF(SeO₃)(NO₃): A Nonlinear Optical Material Produced by Synergistic Effect of Four Functional Units

Abstract

A new nonlinear optical material, the first fluoride selenite nitrate PbCdF(SeO)(NO), was successfully synthesized by traditional solid state reactions. This compound crystallizes in the polar space group of Pca2, and its structure features a novel 2D layered structure consisting of 1D lead nitrate chains and 2D cadmium selenite layers. PbCdF(SeO)(NO) exhibits a phase-matchable SHG efficiency of about 2.6 times that of KDP and a wide band gap of 4.42 eV. Its laser damage threshold was measured to be 135.6 MW/cm, which is comparative to that of the reported Li(TeO)F with a short ultraviolet cutoff edge. Theoretical calculation confirmed that the synergistic effects of all the four functional units make PbCdF(SeO)(NO) a remarkable SHG material.

Exploration of New Birefringent Crystals in Bismuth d0 Transition Metal Selenites

“…For Bi 2 ZrO 2 F 2 (SeO 3 ) 2 ( 5 ), the total weight loss of about 25.7 % is in keeping with the calculated value of 26.6 %, which corresponds to the release of two molecules of SeO 2 . It is worth mentioning that the release temperature of F 2 is indeterminate, sometimes lower than that of SeO 2 (like in compound 3 ) sometimes higher (like in compound 4 ), and sometimes even higher than 800 °C (like in compounds 1 , 2 and 5 ), which is consistent with our previous research …”

“…For Bi 2 ZrO 2 F 2 (SeO 3 ) 2 (5), the total weight loss of about 25.7 %i s in keeping with the calculated value of 26.6 %, whichc orresponds to the releaseo ft wo molecules of SeO 2 .I ti sw orth mentioning that the release temperature of F 2 is indeterminate, sometimes lower than that of SeO 2 (like in compound 3) sometimes higher (like in compound 4), and sometimes even higher than 800 8C( like in compounds 1, 2 and 5), which is consistentwith our previousresearch. [12,18] The IR spectra of compounds 1-5 have been collected in the wavenumber range of 3900-400 cm À1 at room temperature. As seen in Figure S8 in the Supporting Information, they have similar characteristica bsorption peaks below 1000cm À1 .…”

Enhancement of Second-Order Optical Nonlinearity in a Lutetium Selenite by Monodentate Anion Partial Substitution

“…[1][2][3][4][5][6][7][8][15][16][17][18][19][20][21][22] Inorganic metal selenites form an important category of NLO candidates. [23][24][25][26][27][28][29][30][31][32][33][34][35][36] The lone pair electrons on [SeO3] 2− anions favor the formation of noncentrosymmetric (NCS) materials with excellent SHG properties. 37 Many efforts have been focused on the introduction of d 0 transition metal (TM) into metal selenite systems.…”

Giant Optical Anisotropy in the UV‐Transparent 2D Nonlinear Optical Material Sc(IO3)2(NO3)

“…SINO exhibits strong SHG signals that are about 4.0 times larger than that of KDP to 1064 nm laser radiation (particle diameter range 105–150 μm). This SHG performance is superior to those of other hetero‐oxyanion nitrate NLO materials, such as PbCdF(SeO 3 )(NO 3 ) (2.6×KDP), [20a] Bi 3 TeO 6 OH(NO 3 ) 2 (3.0×KDP), [10i] La(IO 3 ) 2 (NO 3 ) (0.6×KDP), [20b] [LaPb 8 O(OH) 10 (H 2 O)](NO 3 ) 7 (1.3×KDP), [20d] Pb 2 (SeO 3 )(NO 3 ) 2 (2.0×KDP), [20e] and Bi 2 Te 2 O 6 (NO 3 ) 2 (OH) 2 (H 2 O) (0.5×KDP), [20c] being surpassed only by Pb 2 (BO 3 )(NO 3 ) (9.0×KDP) [10e] …”