中文
相关论文

相关论文: Generation of vector beams in planar photonic crys…

200 篇论文

We propose a method for generating hollow beams using higher-order cylindrical vector modes of the form R-TEMpl, where the radial index p is varied from 1 to 3 while the azimuthal index is fixed at l = 1. It is found that this scheme…

光学 · 物理学 2025-12-25 Brijesh Kumar Mishra , Brijesh Kumar Singh

Optical vector beam generation based on the superposition technique [Phys. Rev. Lett. 107(5), 053601 (2011)] has attracted significant interest in both fundamental and applied optics due to its simplicity and cost-effectiveness. In this…

光学 · 物理学 2026-03-04 A. Srinivasa Rao

We report that guiding light beams, ranging from continuous beams to femtosecond pulses, along liquid crystal defect lines can transform them into vector beams with various polarization profiles. Using Finite Difference Time Domain…

软凝聚态物质 · 物理学 2015-06-22 Miha Čančula , Miha Ravnik , Slobodan Žumer

Vector vortex beams are a class of optical beams with singularities in their space-variant polarization. Vector vortex beam lasers have applications in many areas including imaging and communication, where vertical-cavity lasers emitting…

光学 · 物理学 2020-10-05 Jiaqi Hu , Seonghoon Kim , Christian Schneider , Sven Höfling , Hui Deng

Complex vector light modes, characterized by a non-uniform transverse polarization distribution, have pervaded a wide range of research fields. In this study, we propose a novel approach that enables the simultaneous generation of multiple…

光学 · 物理学 2023-11-29 Bo-Zhao , Jia-Yuan Wu , Xiang-Yu Yu , Xiao-Bo Hu , Carmelo Rosales-Guzmán

We reveal a triangular-lattice planar photonic crystal supports Bloch modes with radially and azimuthally symmetric electric field distributions at the top band-edge of the first photonic band. Bifurcated from the corresponding Bloch modes,…

光学 · 物理学 2017-09-26 Kang Chang , Liang Fang , Chenyang Zhao , Jianlin Zhao , Xuetao Gan

Complex vector light fields, classically entangled in polarization and phase, have become ubiquitous in a wide variety of research fields. This has triggered the demonstration of a wide variety of generation techniques. Of particular…

光学 · 物理学 2017-08-09 Carmelo Rosales-Guzmán , Nkosiphile Bhebhe , Andrew Forbes

We present a convenient method to generate vector beams of light having polarization singularities on their axis, via partial spin-to-orbital angular momentum conversion in a suitably patterned liquid crystal cell. The resulting…

A novel method is presented for the beam shaping of far field intensity distributions of coherently combined fiber arrays. The fibers are arranged uniformly on the perimeter of a circle, and the linearly polarized beams of equal shape are…

光学 · 物理学 2009-07-28 R. Steven Kurti , Klaus Halterman , Ramesh K. Shori , Michael J. Wardlaw

Harnessing the spontaneous emission of incoherent quantum emitters is one of the hallmarks of nano-optics. Yet, an enduring challenge remains-making them emit vector beams, which are complex forms of light associated with fruitful…

Vector beam, with a spatial nonuniform polarization distribution, is important for many applications due to its unique field characteristics and novel effects when interacting with matter. Here through three-dimensional particle-in-cell…

光学 · 物理学 2021-03-22 Zi-Yu Chen , Ronghao Hu

In this manuscript, we propose the generation of complex vector beams with high quality and stability based on a novel approach that relies on the combination of two techniques that seem incompatible at first glance. The first is Complex…

An optical vortex (OV) is a beam with spiral wave front and screw phase dislocation. This kind of beams is attracting rising interest in various fields. Here we theoretically proposed and experimentally realized a novel but easy approach to…

Complex vector modes have become topical of late due to their fascinating properties and the many applications they have found across a broad variety of research fields. Even though such modes can be generated in a wide variety of ways,…

光学 · 物理学 2021-05-26 Xiao-Bo Hu , Si-Yuan Ma , Carmelo Rosales-Guzmán

Cylindrical vector vortex (CVV) beams, complex light fields that exhibit a vector nature and carry quantized orbital angular momentum states, have been widely investigated due to their rich applications. Current technologies to generate CVV…

光学 · 物理学 2017-11-21 Zengkai Shao , Jiangbo Zhu , Yanfeng Zhang , Yujie Chen , Siyuan Yu

Despite a plethora of applications ranging from quantum memories to high-resolution lithography, the current technologies to generate vector vortex beams (VVBs) suffer from less efficient energy use, poor resolution, low damage threshold,…

光学 · 物理学 2016-03-04 Fuyong Yue , Dandan Wen , Jingtao Xin , Brian Gerardot , Jensen Li , Xianzhong Chen

Singular light beams with optical vortices (OV) are often generated by means of thin binary gratings with groove bifurcation ("fork holograms") that produce a set of diffracted beams with different OV charges. Usually, only single separate…

光学 · 物理学 2015-06-19 A. Ya. Bekshaev , A. S. Bekshaev , K. A. Mohammed

We report a low-cost method for generating cylindrical vector beams using binary holograms printed on acetate sheets and a modified Michelson interferometer incorporating a cylindrical-lens mode converter. By simply exchanging the hologram…

A novel method to generate and manipulate vector vortex beams in an integrated, ring resonator based geometry is proposed. We show numerically that a ring resonator, with an appropriate grating, addressed by a vertically displaced access…

光学 · 物理学 2013-07-02 Sebastian A. Schulz , Taras Machula , Ebrahim Karimi , Robert W. Boyd

Optical bottle beams, characterized by their unique three-dimensional dark core, have garnered substantial interest due to their potential applications across multiple domains of science and technology. This paper delves into the current…

光学 · 物理学 2023-12-21 Nicolas Perez , Daryl Preece
‹ 上一页 1 2 3 10 下一页 ›