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High-Q Fabry-Pérot Cavity Based on Micro-Lens Array for Refractive Index Sensing
Fabry-Pérot (FP) microcavities have attracted tremendous attention in recent years due to their favorable optical characteristics of the high quality...
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Design of Flat All-Dielectric Metasurface Lens for Antenna-Coupled Transition-Edge Sensor Bolometers
The focal plane of a telescope for cosmic microwave background (CMB) observation typically contains a large-scale array of transition-edge sensor...
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Tunable terahertz plasmonic planar lens based on InSb micro-slit array
A plasmonic planar lens operating at terahertz (THz) region based on InSb micro-slit array with varying dielectric slit width is designed and...
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Intensity-tunable achromatic cascade liquid crystal Pancharatnam-Berry lens
In the current solution for multiwavelength achromatic flat lenses, a one-to-one correspondence exists between the number of writing phase...
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Virtual Lens Method for Near-Field Phase Retrieval
Abstract —The progress in the computer science caused wide acceptance of lensless imaging methods, in particular, the phase reconstruction method. It...
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Diffraction-Limited Focusing of Acoustic Waves by a Mesoscopic Flat Janus Lens
Anisotropic focusing by a mesoscopic (Mie size parameter of about 18) acoustic cubic lens based on V-shaped plate structures has been simulated...
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Reducing thickness of long-distance aerial display system in AIRR using Fresnel lens
Aerial displays for providing road information require long-distance image formation and a compact installation space. This paper proposes a compact...
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Generalized design of tunable 3D polarized optical multi-focal spots array
We report a generally designed optical modulation method to garner the tunable three-dimensional (3D) polarized optical multi-focal spots arrays in...
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A scalable optical computer based on free-space optics using lens arrays and a spatial light modulator
A scalable optical computer based on free-space optics and Koehler illumination was proposed to obtain optical parallelism in an artificial neural...
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Symplectic gauge group on the Lens space
We compute the Lens space index for 4d supersymmetric gauge theories involving symplectic gauge groups. This index can distinguish between different...
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Pixel-super-resolved lens-free quantitative phase microscopy with partially coherent illumination
Lens-free on-chip microscopy (LFOCM) has been widely utilized in digital pathology, drug screening, point-of-care testing (POCT), and quantitative...
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Characterization and Correction of the Scattering Background Produced by Dust on the Objective Lens of the Lijiang 10-cm Coronagraph
Scattered light from the objective lens, directly exposed to the intense sunlight, is a dominant source of stray light in internally occulted...
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Metasurface array for single-shot spectroscopic ellipsometry
Spectroscopic ellipsometry is a potent method that is widely adopted for the measurement of thin film thickness and refractive index. Most...
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Beyond the lab: a nanoimprint metalens array-based augmented reality
A see-through augmented reality prototype has been developed based on an ultrathin nanoimprint metalens array, opening up a full-colour, video-rate,...
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Compact athermalized LWIR objective lens
A new compact optical passive athermalized objective lens is designed with a focal length 120 mm and F-number 1.1. Its full field of view is 12.2°....
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Integral imaging near-eye 3D display using a nanoimprint metalens array
Integral imaging (II) display, one of the most critical true-3D display technologies, has received increasing research recently. Significantly, an...
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Performance evaluation of Littrow lens assembly for Visible Emission Line Corongraph (VELC) on board Aditya-L1 mission
Visible Emission Line Coronagraph (VELC) is the prime payload among the seven payloads on board Aditya-L1 mission. VELC is a dedicated payload for...
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A hybrid cryptosystem based on Radon transform, devil’s vortex Fresnel lens phase mask, and Arnold transform
A cryptographic approach for image encryption in the Radon domain is presented in this paper. Grayscale-, and binary images are used to validate the...
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Electronic Focus Steering Capabilities of a Diagnostic-Type Linear Ultrasound Array Designed for High Power Therapy and Its Visualization
AbstractThe focus steering capabilities of a 1 MHz linear phased array transducer (64 rectangular elements, 14.8 × 51.2 mm aperture) intended for...
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Features of Fiber Bragg Grating Array Inscription for Sensing Applications
AbstractThe paper reports the latest research results from the scientists at the Kotelnikov Institute of Radioengineering and Electronics of RAS on...
