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DAST Optical Damage Tolerance Enhancement and Robust Lasing via Supramolecular Strategy
ACS Photonics ( IF 6.5 ) Pub Date : 2020-07-01 , DOI: 10.1021/acsphotonics.0c00602 Tian Tian 1 , Yunkun Wang 1 , Wenjing Zhang 2 , Bing Wang 3 , Cheng Fan 1 , Guanjun You 1 , Shuai Yuan 1 , Gongjie Xu 1 , Min Li 1 , Chuan Xu 1 , Bin Cai 1
ACS Photonics ( IF 6.5 ) Pub Date : 2020-07-01 , DOI: 10.1021/acsphotonics.0c00602 Tian Tian 1 , Yunkun Wang 1 , Wenjing Zhang 2 , Bing Wang 3 , Cheng Fan 1 , Guanjun You 1 , Shuai Yuan 1 , Gongjie Xu 1 , Min Li 1 , Chuan Xu 1 , Bin Cai 1
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Crystalline 4-N,N-dimethylamino-4′-N′-methyl-stilbazolium tosylate (DAST) is known as an excellent organic nonlinear optical (NLO) material. However, it is vulnerable to damage caused by high-intensity laser irradiation, which severely limits its NLO applications. In this study, DAST molecules were included with β-cyclodextrin (β-CD), and DAST@β-CD supramolecular nanowires (NWs), microplates (MPs), and chaotic microcrystals (CMCs) were successfully prepared. All the crystals not only possess excellent NLO properties, but also exhibit greatly enhanced optical damage tolerances (ODTs) and photoluminescence. Under the pumping of a 532 nm picosecond (ps) pulsed laser, we achieved single-mode lasing from MPs and random lasing from CMCs, with thresholds of 55.22 and 88.38 nJ/cm2, respectively. When the laser irradiation had a peak intensity of ∼17.5 GW/cm2, which is 8–9 orders of magnitude higher than the DAST bulk-crystal photobleaching intensity, the CMC laser emission intensity retained ∼95% of its initial value after 4 h of operation in an ambient atmosphere.
中文翻译：
通过超分子策略增强DAST的光学损伤容忍度和稳健发射
结晶4- N，N-二甲基氨基-4'- N甲苯磺酸甲磺基噻唑鎓盐（DAST）是一种出色的有机非线性光学（NLO）材料。但是，它容易受到高强度激光辐照造成的损害，这严重限制了其NLO应用。在这项研究中，DAST分子包含在β-环糊精（β-CD）中，并成功制备了DAST @β-CD超分子纳米线（NWs），微板（MPs）和混沌微晶（CMC）。所有晶体不仅具有出色的NLO性能，而且还大大提高了光学损伤容限（ODT）和光致发光。在532 nm皮秒（ps）脉冲激光的泵浦下，我们实现了MP的单模发射和CMC的随机发射，阈值分别为55.22和88.38 nJ / cm 2， 分别。当激光辐照的峰值强度约为17.5 GW / cm 2，比DAST块状晶体的光漂白强度高8-9个数量级时，CMC激光发射强度在4 h后仍保持其初始值的〜95％在大气中运行。
更新日期：2020-07-01
中文翻译：
通过超分子策略增强DAST的光学损伤容忍度和稳健发射
结晶4- N，N-二甲基氨基-4'- N甲苯磺酸甲磺基噻唑鎓盐（DAST）是一种出色的有机非线性光学（NLO）材料。但是，它容易受到高强度激光辐照造成的损害，这严重限制了其NLO应用。在这项研究中，DAST分子包含在β-环糊精（β-CD）中，并成功制备了DAST @β-CD超分子纳米线（NWs），微板（MPs）和混沌微晶（CMC）。所有晶体不仅具有出色的NLO性能，而且还大大提高了光学损伤容限（ODT）和光致发光。在532 nm皮秒（ps）脉冲激光的泵浦下，我们实现了MP的单模发射和CMC的随机发射，阈值分别为55.22和88.38 nJ / cm 2， 分别。当激光辐照的峰值强度约为17.5 GW / cm 2，比DAST块状晶体的光漂白强度高8-9个数量级时，CMC激光发射强度在4 h后仍保持其初始值的〜95％在大气中运行。
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