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Ophthalmic Res 2021 Mar 2. Epub 2021 Mar 2.

Introduction: Amlyopia always presents with monocular and binocular dysfunction. In this study, we aim to investage the efficacy of alternative occlusion using liquid crystal glasses versus continuous occlusion therapy using traditional patches for treating amblyopia.

Methods: Eligible subjects with anisometropic amblyopia were randomized into two groups: alternative flicker glass (AFG) or patching group. Read More

J Phys Chem A 2021 Mar 2. Epub 2021 Mar 2.

Japan Synchrotron Radiation Research Institute JASRI SPring-8, Sayo, Hyogo 679-5198, Japan.

Low-frequency vibrations of crystalline molecules are very sensitive to the local environment in which the molecules, for example, hydrated ions captured in crystals, find themselves. We present low-temperature X-ray crystallographic measurements on the harvested thiamine crystal containing hydrated ions and its temperature-dependent terahertz spectra and synchrotron infrared microspectra. It is found from the X-ray structure that the hydrated ions and hydration water are in a similar environment to liquid, although those are captured in crystals. Read More

Angew Chem Int Ed Engl 2021 Mar 1. Epub 2021 Mar 1.

Georgia Institute of Technology, School of Materials Science and Engineering, 771 Ferst Dr., NW, 3100K, Molecular Science & Engineering Bldg., 30332, Atlanta, UNITED STATES.

The ability to rapidly and deliberately pattern nanomaterials of interest over a large area provides an effective route for device manufacturing. Herein, we report the meniscus-assisted self-assembly (MASA)-enabled rapid positioning of hierarchically assembled dots and stripes composed of luminescent conjugated polymer over two length scales. Specifically, periodically arranged conjugated polymer (poly(9, 9-dioctylfluorenes); PFOs) dots, punch-holes and stripes are yielded at microscopic scale via MASA in conjunction with concurrent self-assembly of PFOs into two-dimensional lenticular crystals within each dot, punch-hole and stripe at nanoscopic scale. Read More

Opt Lett 2021 Mar;46(5):1169-1172

A new type of ultrasonically controlled concave liquid crystal lens based on traveling waves (TWs) with a divided electrode structure and an appropriate driving scheme is proposed in this Letter. The lens uses an annular piezoelectric ceramic divided into four parts for four-phase driving and consists of a liquid crystal layer in a sandwich structure between two circular glass substrates. The lens configuration was simulated by finite element analysis using the Ansys software. Read More

Opt Lett 2021 Mar;46(5):1037-1040

High-speed spatial modulation of light is the key technology in various applications, such as optical communications, imaging through scattering media, video projection, pulse shaping, and beam steering, in which spatial light modulators (SLMs) are the underpinning devices. Conventional SLMs, such as liquid crystal (LC), digital micromirror device (DMD), and micro-electro-mechanical system (MEMS) ones, operate at a typical speed on the order of several kilohertz as limited by the slow response of the pixels. Achieving high-speed spatial modulation is still challenging and highly desired. Read More