Modularized orthogonal-polarization dual-wavelength microcavity based on light curing gradient-composite multi-dimensional meta-filters

IF 4.6 2区 物理与天体物理 Q1 OPTICS
Yang Li , Yan Li , Jingru Wang , Zejia Zhao , Adnan Khan , Ming Feng , Feng Song
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Abstract

The utilization of a stable orthogonally polarized laser can promote the head-mounted miniature fluorescence microscopy into a powerful tool for real-time intracerebral three-dimensional observation. However, the realization of wearable dual-wavelength polarized light sources has remained an attractive challenge to break through the spatial constraints of transmitting fiber-optic paths. Herein, we have proposed a modularized orthogonal-polarization dual-wavelength microcavity enabled by high reflectance (HR) and output-coupled (OC) gradient-composite multi-dimensional meta-filters, where these printable meta-filters are composed of two nanocomposite metasurfaces (NCMSs). Specifically, based on the Mie surface lattice resonances (Mie-SLR), the designed NCMSs can realize tunable multi-parameter filtering at diverse dimensions (wavelength, polarization, and incident angle) by optimizing the lattice distances. By virtue of the sandwich-type gradient-composite configuration, the proposed meta-filters have integrated orthogonal-polarization filtering of two independent NCMS at 1064 nm and 1320 nm. The stability of the multi-dimensional filtering capabilities of the proposed meta-filters has been enhanced by optimizing the thickness of the resin bonding layers in the gradient-composite structure. Without other nonlinear modulation, orthogonal-polarization dual-wavelength mode oscillations can be developed only by passive multi-dimensional filtering of HR and OC meta-filters in the microcavity. These proposed new-generation gradient-composite multi-dimensional meta-filters will provide novel strategies toward high-robust miniature light sources for wearable optical devices.
基于光固化梯度复合多维元滤波器的模块化正交偏振双波长微腔
利用稳定的正交偏振激光可将头戴式微型荧光显微镜提升为实时脑内三维观测的有力工具。然而,如何突破光纤传输路径的空间限制,实现可穿戴的双波长偏振光源仍是一项极具吸引力的挑战。在此,我们提出了一种模块化的正交偏振双波长微腔,由高反射率(HR)和输出耦合(OC)梯度复合多维元滤波器实现,其中这些可印刷元滤波器由两个纳米复合元表面(NCMS)组成。具体来说,基于米氏表面晶格共振(Mie-SLR),所设计的 NCMS 可通过优化晶格间距实现不同维度(波长、偏振和入射角度)的可调多参数滤波。通过三明治式梯度复合配置,所提出的元滤波器在 1064 nm 和 1320 nm 波长上集成了两个独立 NCMS 的正交偏振滤波。通过优化梯度复合结构中树脂粘合层的厚度,提高了拟议元滤波器多维滤波功能的稳定性。在没有其他非线性调制的情况下,只有通过微腔中的 HR 和 OC 元滤波器的无源多维滤波,才能产生正交极化双波长模式振荡。这些拟议的新一代梯度复合多维元滤波器将为可穿戴光学设备的高稳健微型光源提供新的策略。
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来源期刊
CiteScore
8.50
自引率
10.00%
发文量
1060
审稿时长
3.4 months
期刊介绍: Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems
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