Results 41 to 50 of about 22,341 (248)

Implementation and characterization of the optical-see-through Maxwellian near-eye display prototype using three-dimensional printing

Journal of Information Display, 2020
By presenting always-in-focus virtual images, Maxwellian near-eye displays can remove the vergence accommodation conflict, which causes eye fatigue or dizziness.
Myeong-Ho Choi, Seong-Bok Kim, Jae-Hyeung Park   +2 more
doaj   +1 more source

Calculation of higher-order axial spherical aberrations of a high-aperture focusing holographic optical element with the corrected third-order spherical aberration. Part 2 [PDF]

Компьютерная оптика, 2018
The paper presents and discusses the results of calculations of the radii of transverse fifth-, seventh- and ninth-order spherical aberrations in a multi-order on-axis HOE (holographic optical element), recorded using two divergent spherical waves.
Yuri Batomunkuev, Aleksandra Dianova , Tatyana Maganakova   +2 more
doaj   +1 more source

Holographic optical scanning elements with minimum aberrations [PDF]

Applied Optics, 1988
An analytical method to design holographic optical elements for focusing laser scanners, especially disk scanners, with minimum aberrations and optimum scan line definition is reported. The results reveal that the focused spot constraint to a straight line is always astigmatic.
Herzig, Hans-Peter, Dändliker, René
openaire   +2 more sources

Real-time dynamic holographic image storage device [PDF]

, 1990
A real-time dynamic holographic image storage device uses four-wave mixing in a pair of photorefractive crystals. An oscillation is produced between the crystals which can be maintained indefinitely after the initial object beam is discontinued.
Lafleur, Sharon S., Montgomery, Raymond C.   +1 more
core   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

Advanced Functional Materials, EarlyView.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai, Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Giuseppe Castaldi, Tie Jun Cui, Vincenzo Galdi   +6 more
wiley   +1 more source

Contact lens holographic projection display based on curved volume-holographic optical element

ETRI Journal
Wearable devices for augmented reality (AR) have gained considerable atten-tion but research on contact lenses remains scarce. This study introduces an AR display that utilizes a contact lens integrated with a holographic projection display and a curved ...
Jin Su Lee
doaj   +1 more source

Electrically controlled optical spectral filters for DWDM communication networks based on multiplexed three-layer holographic photopolymer-liquid crystal diffraction structures

Компьютерная оптика
This paper presents the diffraction characteristics of electrically controlled multiplexed three-layer holographic diffraction structures formed in photopolymer materials with a high proportion of nematic liquid crystals. The results obtained demonstrate
V.О. Dolgirev, D.S. Rastrygin, S.N. Sharangovich   +2 more
doaj   +1 more source

High efficiency and scalable fabrication of fresnel zone plates using holographic femtosecond pulses

Nanophotonics, 2022
To meet the growing demand for photonic integration and device miniaturization, planar diffractive Fresnel zone plates (FZPs) are widely applied in integrated optical systems.
Wang Zhipeng, Jiang Lan, Li Xiaowei, Gao Shuai, Zhou Shipeng, Liu Yang, Huang Lingling, Lu Jiangang, Yin Jiangang   +8 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source