Focusing properties of radially polarized Bessel-like beam with radial cosine phase wavefront by a high numerical aperture objective
Sign Up to like & getrecommendations! Published in 2017 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-017-1050-3
Abstract: By the use of the vector diffraction theory, the focusing properties of radially polarized Bessel-like beam with radial cosine wave front phase through a high numerical-aperture (NA) lens are investigated theoretically and numerically in this… read more here.
Keywords: phase; cosine; focusing properties; numerical aperture ... See more keywords
Polarization independent high transmission large numerical aperture laser beam focusing and deflection by dielectric Huygens’ metasurfaces
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2017.05.031
Abstract: Abstract In this letter, we propose all-dielectric Huygens’ metasurface structures to construct high numerical aperture flat lenses and beam deflecting devices. The designed metasurface consists of two-dimensional array of all-dielectric nanodisk resonators with spatially varying… read more here.
Keywords: dielectric huygens; aperture; high transmission; numerical aperture ... See more keywords
Transport of energy through the focal region of a high-numerical-aperture system with efficient annular focusing of light beam and its optimum thin-film linear-to-radial polarization conversion
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.04.078
Abstract: Abstract In a previous paper [Opt. Commun. 407 (2018) 217–226], there was proposed a light-efficient, high-numerical-aperture focusing system which is based on a monolithic assembly of an axicon and an inclined parabolic annular reflector (AXIPAR)… read more here.
Keywords: film linear; energy; thin film; polarization ... See more keywords
High-efficiency broadband photonic crystal fiber metalens with a large numerical aperture
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126524
Abstract: Abstract Photonic Crystal Fiber (PCF), as a novel optical fiber, is widely used in the applications of dispersion control, supercontinuum generation, fiber sensing, etc. However, the numerical aperture (NA) of most PCFs is normally too… read more here.
Keywords: crystal fiber; fiber; photonic crystal; efficiency ... See more keywords
Label-Free Single-Molecule Imaging with Numerical-Aperture-Shaped Interferometric Scattering Microscopy
Sign Up to like & getrecommendations! Published in 2017 at "ACS Photonics"
DOI: 10.1021/acsphotonics.6b00912
Abstract: Our ability to optically interrogate nanoscopic objects is controlled by the difference between their extinction cross sections and the diffraction-limited area to which light can be confined in the far field. We show that a… read more here.
Keywords: single molecule; numerical aperture; label free; microscopy ... See more keywords
High numerical aperture, highly birefringent novel photonic crystal fibre for medical imaging applications
Sign Up to like & getrecommendations! Published in 2018 at "Electronics Letters"
DOI: 10.1049/el.2017.3694
Abstract: A novel Zeonex based porous fibre is proposed for biomedical imaging and polarisation preserving applications of terahertz waves. The standard finite element method is used to simulate the propagation characteristics of the fibre that shows… read more here.
Keywords: novel; high numerical; aperture highly; highly birefringent ... See more keywords
Welding Fused Silica Glass by Picosecond Pulsed Laser With Low Numerical Aperture
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Micro and Nano-Manufacturing"
DOI: 10.1115/1.4045467
Abstract: Researches on glass welding using tightly focused ultrafast lasers have attracted much attention. However, optical systems with low numerical aperture (NA) in laser material processing are commonly used in industry applications. Transmission welding of two… read more here.
Keywords: fused silica; low numerical; glass; silica glass ... See more keywords
Design of an objective for a hyper-numerical-aperture immersion lithography tool with a multi-step alternative grouping design method.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.457833
Abstract: An adequate initial structure plays an important role in achieving a high-quality hyper-numerical-aperture (NA) catadioptric objective for an immersion lithography tool. A multi-step alternative grouping design method is innovated to achieve a feasible aspherical initial… read more here.
Keywords: structure; numerical aperture; immersion lithography; design ... See more keywords
Inertia alignment of phase-shifting algorithms for high-numerical-aperture spherical testing in Fizeau interferometry.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.465761
Abstract: In Fizeau interferometry for high-numerical-aperture spherical surface tests, the mechanical phase shift becomes spatially nonuniform within the observation aperture. We divided the aperture into annular regions and calculated the object phase using several algorithms designed… read more here.
Keywords: aperture spherical; high numerical; aperture; numerical aperture ... See more keywords
Holistic and efficient calibration method for Mueller matrix imaging polarimeter with a high numerical aperture.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.474531
Abstract: High-numerical aperture (N A>0.6) Mueller matrix imaging polarimeter (MMIP) (high-NA MMIP) is urgently needed for higher resolution. Usually, the working distance of high-NA MMIP is too short to perform in situ calibration by a usual… read more here.
Keywords: high numerical; calibration method; calibration; numerical aperture ... See more keywords
Largest aperture metalens of high numerical aperture and polarization independence for long-wavelength infrared imaging.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.462251
Abstract: Because of unique superiorities of planar optical devices based on metalens on manipulating amplitude, phase, polarization, wavelength of incident light, metalenses have great prospects to replace traditional catadioptric optical components, especially in imaging and optoelectronic… read more here.
Keywords: wavelength infrared; aperture; numerical aperture; wavelength ... See more keywords