Results 41 to 50 of about 243,834 (314)

The three-dimensional carrier-envelope-phase map of focused few-cycle pulsed Gaussian beams [PDF]

, 2018
We derive an analytical expression that describes the complete three-dimensional carrier-envelope phase (CEP) distribution of in the focal volume of ultrashort pulsed Gaussian beams focused by spherical mirrors or lenses. The focal CEP map depends on the
Horváth, Zoltán L., Major, Balázs, Porras, M. A.   +2 more
core   +2 more sources

End-to-End Optimization of an Achromatic Diffractive Optical Element Array for Integral Imaging Three-Dimensional Display

IEEE Photonics Journal, 2022
Diffractive optical element (DOE) array promises compact shape for full-parallax integral imaging three-dimensional (3D) display. However, DOEs suffer from large chromatic aberration due to the strong wavelength-dependent nature of diffraction phenomena ...
Yuedi Wang, Xunbo Yu, Xin Gao, Hanyu Li, Xinhui Xie, Xiangyu Pei, Binbin Yan, Xinzhu Sang   +7 more
doaj   +1 more source

Computational inverse design for ultra-compact single-piece metalenses free of chromatic and angular aberration [PDF]

, 2020
We present full-Maxwell topology-optimization design of a single-piece multlayer metalens, about 10 wavelengths~$\lambda$ in thickness, that simultaneously focuses over a $60^\circ$ angular range and a 23\% spectral bandwidth without suffering chromatic ...
Zin Lin, C. Roques-Carmes, R. Christiansen, M. Soljačić, Steven G. Johnson   +4 more
semanticscholar   +1 more source

Atom focusing by far-detuned and resonant standing wave fields: Thin lens regime [PDF]

, 1999
The focusing of atoms interacting with both far-detuned and resonant standing wave fields in the thin lens regime is considered. The thin lens approximation is discussed quantitatively from a quantum perspective. Exact quantum expressions for the Fourier
A.G. Rojo, B. Dubetsky, B. Dubetsky, B. Dubetsky, B. Dubetsky, C. Kurtseifer, C.V. Raman, G. Timp, H.F. Talbot, I.S. Gradshteyn, J. L. Cohen, J. Schmiedmayer, J.J. McClelland, J.J. McClelland, J.J. McClelland, J.L. Cohen, K. Berggren, K. Patorski, K.K. Berggren, K.S. Johnson, M. Kozuma, M. Prentiss, M.-O. Mewes, M.S. Chapman, P. R. Berman, R. Gupta, R.E. Behringer, R.E. Behringer, R.J. Celotta, S. Nowak, S. Nowak, S.B. Cahn, T. Sleator, U. Drodofsky, U. Drodofsky, U. Janicke, V. Natarajan, V.I. Balykin, V.P. Chebotayev, W.R. Anderson   +39 more
core   +2 more sources

Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor [PDF]

, 2013
Context. Several exoplanet direct imaging instruments will soon be in operation. They use an extreme adaptive optics (XAO) system to correct the atmospheric turbulence and provide a highly-corrected beam to a near-infrared (NIR) coronagraph for starlight
Dohlen, K., Fusco, T., N'diaye, Mamadou, N’Diaye, M., Paul, B.   +4 more
core   +5 more sources

Post hoc Correction of Chromatic Aberrations in Large-Scale Volumetric Images in Confocal Microscopy

Frontiers in Neuroanatomy, 2021
Over the last decade, tissue-clearing techniques have expanded the scale of volumetric fluorescence imaging of the brain, allowing for the comprehensive analysis of neuronal circuits at a millimeter scale.
Marcus N. Leiwe, Satoshi Fujimoto, Takeshi Imai   +2 more
doaj   +1 more source

Design, Fabrication and Analysis of a Hybrid-Order Monolithic Imaging Diffractive Lens on a Germanium Substrate

Micromachines, 2023
Diffractive optical elements are gradually replacing some conventional optical elements and becoming a key component of optical systems due to their unique phase modulation function.
Yidi Zheng, Boping Lei, Bin Fan, Junfeng Du, Jiang Bian, Lihua Wang, Yuchen Liu, Shanghong Guan, Dun Liu, Qian Luo, Hu Yang, Hao Zhang, Chao Hu   +12 more
doaj   +1 more source

The Infrared Imaging Spectrograph (IRIS) for TMT: optical design of IRIS imager with "Co-axis double TMA" [PDF]

, 2016
IRIS (InfraRed Imaging Spectrograph) is one of the first-generation instruments for the Thirty Meter Telescope (TMT). IRIS is composed of a combination of near-infrared (0.84--2.4 $\mu$m) diffraction limited imager and integral field spectrograph.
Harakawa, Hiroki, Hayano, Yutaka, Ikenoue, Bungo, Larkin, James, Moore, Anna, Obuchi, Yoshiyuki, Phillips, Andrew C, Saito, Sakae, Suzuki, Ryuji, Tsuzuki, Toshihiro, Uraguchi, Fumihiro, Wincentsen, James, Wright, Shelley   +12 more
core   +3 more sources

Practical Chromatic Aberration Correction in Virtual Reality Displays Enabled by Cost‐Effective Ultra‐Broadband Liquid Crystal Polymer Lenses

Advanced Optical Materials, 2019
Chromatic aberration (CA) is a critical issue in immersive virtual reality displays. The current digital compensation method can reduce the CA by pre‐processing the image contents but at the cost of extra memory space, processing time, and power ...
Tao Zhan, Junyu Zou, J. Xiong, Xiaomin Liu, Hao Chen, Jilin Yang, Sheng Liu, Yajie Dong, Shin‐Tson Wu   +8 more
semanticscholar   +1 more source

Ultraviolet hyperspectral microscopy using chromatic-aberration-based iterative phase recovery.

Optics Letters, 2020
Ultraviolet (UV) microscopy has recently re-emerged as an important label-free, molecular imaging technique. This stems from the unique UV absorption properties of many endogenous biomolecules that play a critical role in cell structure and function ...
Nischita Kaza, A. Ojaghi, Francisco E. Robles   +2 more
semanticscholar   +1 more source