Nonlinear optical phenolic ionic crystals

摘要

(OHQ-T, OHQ-VBS, OHQ-I) of the non-center crystal structure which provides OHQ cations of a noncentral core structure for a novel organic electro-optic crystal, Harmonic generation (SHG) efficiency. The OHQ-T crystals also have a perfect molecular arrangement for maximum electro-optic response, and the bulk crystals produced are relatively 75mm²Area, and has a very wide optical transparency range of 510 to 1600 nm.In addition, for wavelengths incident at near infrared regions of 1200 and 800 nm, OHQ-T crystals exhibit better properties for generating THz waves than ZnTe organic crystals. OHQ-T crystals with a broadband source of 1200 nm exhibit 30-to 35-fold higher THz generation efficiency and exhibit an upper THz frequency upper limit of 3-5 times, up to 10 THz. Thus, this new OHQ core structure provides high electro-optic crystal efficiency.As a new high-efficiency nonlinear optical quinolinium single crystal, quinolinium single crystals (OHQ-TMS) are synthesized from 2-(4-hydroxystyryl)-1-methylquinolinium cations with molecular optical nonlinearity, 4,6-trimethylbenzenesulfonate It is composed of counter anion, and it has acentric monoclinic P2_OneA space group crystal structure which exhibits a large macroscopic nonlinear optical response and exhibits a large transparency range (550-1600 nm) in the optical wavelength region and a relatively low absorption coefficient in the THz region (absorption coefficient).;