中国科学院机构知识库网格系统: 检索

Regulatory method of 3D Multi-focus Controllable Distribution Based on Computer Generated Holography 会议论文 OAI收割
Changsha, PEOPLES R CHINA, 2022-11-11
作者: Zhang, Ruidi; Chen, Xiaoyi; Duan, Yaxuan; Wang, Pu; Da, Zhengshang

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收藏 | 浏览/下载：51/0 | 提交时间：2023/10/19

Femtosecond laser processing Optical field modulation 3D multi-foci Computer generated hologram Analytic algorithm

Plasmomechanical Systems: Principles and Applications 期刊论文 OAI收割
ADVANCED FUNCTIONAL MATERIALS, 2021, 卷号: 31, 期号: 41
作者: Koya, Alemayehu Nana; Cunha, Joao; Guerrero-Becerra, Karina Andrea; Garoli, Denis; Wang, Tao

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收藏 | 浏览/下载：17/0 | 提交时间：2021/12/01

OPTICAL FORCES MOTION TRANSDUCTION CANCER BIOMARKERS NEAR-FIELD GRAPHENE NANOSTRUCTURES NANOPARTICLES OPTIMIZATION RESONATORS MODULATION

Double-beam laser interference lithography based on optical field modulation 会议论文 OAI收割
Chengdu, China, June 26, 2018 - June 29, 2018
作者: Peng, Fuping; Yan, Wei; Yang, Fan; Li, Fanxing

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收藏 | 浏览/下载：20/0 | 提交时间：2021/05/06

interference optical field modulation function

Design of reimaging F/1.0 long-wavelength infrared optical system (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

A reimaging F/1.0 long-wavelength infrared optical system is proposed. The design has a flexible opto-mechanical layout. The design process is as follows. Firstly the catadioptric reimaging system consists of two reflecting mirrors and a relay lenses. Two reflecting mirrors make up of the first imaging system and are therefore free of chromatic aberrations while low dispersion lenses were used in the reimaging system so the optical system do not need achromatic design for a high image quality. Then to correct high-order aberrations resulting from large relative aperture more parameters need to be used with aspheric or diffractive surfaces due to modern optic technology development. Here aspheric is selected for easily manufacture. Finally the design is completed with the help of ZEMAX software. The effective focal length of the objective is 120mm and the field of view (FOV) is 4. The simulated final design shows adequate image quality and the modulation transfer function (MTF) is close to diffraction limit. The effect of the surrounding environmental temperature is analyzed using the concept of thermal defocusing and the thermal compensation is discussed. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Modulation transfer function measurement of sampled imaging systems in field test (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者: Yang L.; Zhang J.; Zhang J.; Zhang J.; Wang J.

收藏 | 浏览/下载：30/0 | 提交时间：2013/03/25

A digital mirror device (DMD) based light projector was developed as the target generator in modulation transfer function (MTF) measurement. In order to overcome the sampling-scene phase effect in MTF measurement of sampled imaging systems a method using random targets is introduced to yield a phase-averaged MTF. The main potential problem of implementing this method is the fact that the stationary assumption of the random targets may be vitiated in practical measurement especially in field test due to the ill condition. We provide an efficient model-independent way of analyzing and isolating the spectral contents arising from these additional contributions to MTF measurement. Algorithms with adaptive parameter selection were also developed for spectral estimation of the test image in order to overcome the challenge brought by the size limit of the test matrices for one certain field of view derived from the isoplantic region. The MTF measurement of a CCD video imager is used to demonstrate the measurement technique and illustrate the benefits over other methods. In order to validate the results comparisons have been made between MTF measurements of imager implemented using this method and bar target direct measurements. 2010 Copyright SPIE - The International Society for Optical Engineering.

A spherical catadioptric telescope system based on Cooke corrector group (EI CONFERENCE) 会议论文 OAI收割
Novel Optical Systems Design and Optimization XII, August 3, 2009 - August 4, 2009, San Diego, CA, United states
作者: Zhang J.; Liu W.; Zhang J.; Zhang J.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

To obtain a number of advantages in fabrication testing and alignment many designs in which spherical mirrors replace classical Cassegrain-form aspheric mirrors are present in the literature. However spherical mirrors suffer from substantial spherical aberration and thereby require some form of corrector group. But in this case the question encountered is that of making the basic optical configuration more complex. In this paper a new design based on Cooke corrector group is presented for eliminating spherical aberration which is believed to provide higher performance with less complexity than previous approaches. Besides the cost and fabrication period will be extremely decreased. The telescope system using corrector group here can achieve good optical performance with f# of 10 full field of 0.5 obscuration of 1/3 and MTF (Modulation Transfer Function) of 0.48 corresponding to 50@lp/mm. 2009 Copyright SPIE - The International Society for Optical Engineering.

Optical system of large relative aperture and wide field using aspheric corrector for detecting (EI CONFERENCE) 会议论文 OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者: Zhang J.; Zhang J.; Zhang J.; Wang J.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

The magnitude requirement of space target detecting determines that the image of detecting telescope should have several performances: small spots the wider field of view small 80% encircled energy diameter and good MTF(Modulation transfer function). So the aperture and field of view of optical system have some demands accordingly. The larger aperture the more extensive range which the telescope searches. Now most of ground telescopes whose apertures are from 500mm to 1000mm is on-axis optical system the more energy that telescope collects and higher magnitude the telescope detects so wide field of view becomes the most importance problem. To obtain large relative aperture and wide field of view the paper introduces a catadioptric telescope with small aperture aspheric refractive corrector whose conic surface will be used to remove the aberrations due to large relative aperture and wide field of view. As to the optical system there is only one aspheric refractive corrector and it is relatively easy for manufacturing because of its concave figure and normal material. The paper gives the example and optimizes this optical system with ZEMAX program. And then the paper provides a specific analysis program for testing the aspheric refractive corrector. The aperture of this optical system is 750mm and its relative aperture is 0.82 and the field of view is 3.6 diameter(diagonal). Its structure is simple and the image quality is also very good. 2009 SPIE.

Fabrication error model and near field beam modulation analysis for phase step diffractive gratings 期刊论文 OAI收割
MICROELECTRONIC ENGINEERING, 2005, 卷号: 78-79, 页码: 142-146
作者: Gao, FH; Cheng, Y; Tang, XG; Yao, J; Qiu, CK

收藏 | 浏览/下载：21/0 | 提交时间：2015/09/21

color separating grating beam modulation near field fabrication error model optical damage

Electron mobility in a GaAs/AlAs quantum well with a thin AlAs middle barrier 期刊论文 OAI收割
PHYSICAL REVIEW B, 1998, 卷号: 58, 期号: 19, 页码: 12609-12612
Wang, XF; Lima, ICD; LEI, XL（雷啸霖）（雷啸霖）

收藏 | 浏览/下载：20/0 | 提交时间：2012/03/25

PHONON-SCATTERING RATES OPTICAL PHONONS DOUBLE HETEROSTRUCTURES BILAYER SYSTEMS FIELD SUPERLATTICES ENHANCEMENT MODULATION TRANSPORT WIRE

Magnetic field modulated direct overwrite with pulsed laser irradiation for TbFeCo magneto-optical disks 期刊论文 OAI收割
opt. eng., 1997, 卷号: 36, 期号: 9, 页码: 2513, 2516
Wang R; Fan JP; Li XS; 干福熹

收藏 | 浏览/下载：3255/513 | 提交时间：2009/09/22

magneto-optical storage magnetic field modulation direct overwrite carrier-to-noise ratio