SrZnSnSe4: A quaternary selenide with large second harmonic generation and birefringence

Rational designviadual-site aliovalent substitution leads to an outstanding IR nonlinear optical material with well-balanced comprehensive properties

“…Such a value shows the outstanding laser tolerance of SrCdSiS 4 , indicating its potential in high-power laser applications. As a new member of the XM II M IV Q 4 (X ¼ Eu, Sr, Ba; M II ¼ Mn, Zn, Cd, and Hg; M IV ¼ group-14 elements; and Q ¼ chalcogen) system, 24,[48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63] it is necessary to make a detailed comparison with other compounds. A summary of the two key performance parameters (i.e., d eff and E g ) of the XM II M IV Q 4 family is provided in Fig.…”

Characterizations and Nonlinear-Optical Properties of Pentanary Transition-Metal Oxysulfide Sr2CoGe2OS6

“…Second-order nonlinear-optical (NLO) materials can double lasers’ frequency, thus extending the available wavelengths and increasing the power of lasers, allowing wider applications in laser-related markets. − Therefore, developing high-performance NLO materials is vital to the laser world. Specifically, commercial infrared (IR) NLO materials are relatively undeveloped, and the main commercial ones do not meet the market’s requirements because of their low laser-induced damage thresholds (LIDTs) or coupled-photon absorption. , Therefore, it is urgent and challenging to explore new materials with superior performances.…”

Growth and Optical Properties of Large-Sized NaVO2(IO3)2(H2O) Crystals for Second-Harmonic Generation Applications

“…Nonlinear optical (NLO) crystals are critical functional materials in advanced solid-state laser technology. They can expand the wavelength range of coherent light sources based on their optical frequency conversion functions, including second-harmonic generation (SHG), optical parametric amplification (OPA), etc. − Inspired by their practical applications, exploring new NLO materials has aroused scientists’ intense interest. − Due to the intrinsic structure features of the IO 3 /IO 4 building units with asymmetric pyramidal coordination geometries and the stereochemically active lone pair electrons, metal iodates represent an attractive class of inorganic compounds as potential NLO crystal material. − As early as the 1970s, the simple ternary iodate α-LiIO 3 was studied as a well-known NLO crystal. − Large crystals of LiIO 3 have been successfully grown using the low-temperature solution method and have even achieved practical application as a commercial NLO crystal. − Since the beginning of the 21st century, metal iodates have regained wide attention, and many new metal iodates with excellent NLO properties have been discovered over the past two decades. ,− Based on the design strategy of combining d 0 transition metal (TM) ions (Ti 4+ , V 5+ , Nb 5+ , Mo 6+ , etc.) with IO 3 anionic groups, a large number of novel quaternary iodates with strong SHG effects have been discovered, such as Li 2 Ti­(IO 3 ) 6 (500 × α-SiO 2 ), Zn 2 (VO 4 )­(IO 3 ) (6 × KDP; KDP is the abbreviation of KH 2 PO 4 ), BaNbO­(IO 3 ) 5 (14 × KDP), Ba 2 [MoO 3 (OH)­(IO 3 ) 2 ]­IO 3 (8 × KDP), etc.…”