中国激光
2023, 50(18): 1800101
1 哈尔滨工业大学（深圳）微纳光电信息系统理论与技术工信部重点实验室，广东 深圳 518055
2 哈尔滨工业大学（深圳）广东省半导体光电材料与智能光子系统重点实验室，广东 深圳 518055
首先简述了双光子聚合3D打印技术的原理及特点；然后介绍了3D打印的衍射光栅、光子晶体、仿生结构及单个微纳结构等代表性结构色方案，并重点回顾了立体、动态结构色信息的呈现方式及其在光学防伪、信息存储和光学传感等领域中的应用；最后总结了双光子聚合3D打印技术的研究现状及存在的问题，并对其未来的研究方向及应用前景进行了展望。
激光技术 3D打印 双光子聚合 结构色立体信息 动态结构色 中国激光
2023, 50(18): 1813007
哈尔滨工业大学（深圳）材料科学与工程学院，广东 深圳 518055
超构表面为纳米光子器件赋予了更高的自由度与灵活度，使实用的微纳米光子器件的实现成为可能。基于高折射率半导体材料的介质超构表面制备技术可以和半导体集成电路的制作工艺结合，有希望在攻克超构表面大面积和高通量制备技术难题上发挥重要的作用，因此对其光场调控性能和制备工艺的研究是该领域近年来的重要发展方向。本文从硅、氮化硅和二氧化钛等介质超构表面出发，介绍了超构表面高通量制造技术的发展。此外，介绍了基于大面积制造技术实现实际应用的基于纳米光子器件的光学器件，如显示、成像、光调控器件。
光学设计 超构表面 微纳制造 高通量制造 CMOS兼容制造工艺
Author Affiliations
Abstract
State Key Laboratory of Tunable Laser Technology, Ministry of Industry and Information Technology, Key Laboratory of Micro-Nano Optoelectronic Information System, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
Magnetic dipole (MD) transitions are important for a range of technologies from quantum light sources and displays to lasers and bio-probes. However, the typical MD transitions are much weaker than their electric counterparts and are usually neglected in practical applications. Herein, we experimentally demonstrate that the MD transitions can be significantly enhanced by the well-developed magnetic metamaterials in the visible optical range. The magnetic metamaterials consist of silver nanostrips and a thick silver film, which are separated with an Eu3+:polymethyl methacrylate (PMMA) film. By controlling the thickness of the Eu3+:PMMA film, the magnetic resonance has been tuned to match the emission wavelength of MDs. Consequently, the intensity of MD emission has been significantly increased by around 30 times at the magnetic resonance wavelength, whereas the intensity of electric dipole emission is well-preserved. The corresponding numerical calculations reveal that the enhancement is directly generated by the magnetic resonance, which strongly increases the magnetic local density of states around the MD emitter and can efficiently radiate the MD emission into the far field. This is the first demonstration, to the best of our knowledge, that MD transitions can be improved by an additional degree of magnetic freedom, and we believe this research shall pave a new route towards bright magnetic emitters and their potential applications.
160.3918 Metamaterials 160.6990 Transition-metal-doped materials 350.5400 Plasmas 310.6628 Subwavelength structures,nanostructures 300.6550 Spectroscopy, visible Chinese Optics Letters
2018, 16(5): 050008
复旦大学信息学院光科学与工程系先进光子学材料与器件国家重点实验室, 上海 200433
提出了一种基于随机腔激光的新型平面随机微腔激光器, 它由一对多层介质膜反射镜组成的平面微腔和随机腔组成。实验发现, 该平面随机微腔激光器可产生单方向性、极底阈值、很窄线宽的激光出射。该结果为随机激光这一概念的应用提供了一种可行的技术路线。
随机激光 平面微腔
