Journal of the Optical Society of America最新文献

Optimal Data Acquisition In Tomography 断层扫描中的最佳数据采集

Journal of the Optical Society of America Pub Date : 2023-11-13 DOI: 10.1364/josaa.506113

Mahshad Javidan, Hadi Esfandi, Rozalyn Anderson, Ramin Pashaie

引用次数: 0

Viewpoint-dependent highlight depiction with microdisparity for autostereoscopic display 具有微视差的视点相关高光描述用于自动立体显示

Journal of the Optical Society of America Pub Date : 2023-11-13 DOI: 10.1364/josaa.495716

Tianqi Huang, Ruiyang Li, Longfei Ma, Hongen Liao

引用次数: 0

Photoacoustic image reconstruction with a new objective function using TGV and ESTGV as a regularization parameter. 以TGV和ESTGV为正则化参数的新目标函数光声图像重建。

Journal of the Optical Society of America Pub Date : 2023-11-13 DOI: 10.1364/josaa.499443

BONDITA PAUL, Rusha Patra

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Color Image Guided Depth Image Reconstruction Based on Total Variation Network 基于全变分网络的彩色图像引导深度图像重建

Journal of the Optical Society of America Pub Date : 2023-11-13 DOI: 10.1364/josaa.501718

Yue Guo, Shipeng Xie, Ying Hu, Xian Xu

引用次数: 0

Angular width and beam quality of a partially coherent standard Laguerre-Gaussian vortex beam in turbulent plasma 湍流等离子体中部分相干标准拉盖尔-高斯涡旋光束的角宽度和光束质量

Journal of the Optical Society of America Pub Date : 2023-11-10 DOI: 10.1364/josaa.506836

Abdu Alkelly, Mahmood Khaled, Labiba Hassan

引用次数: 0

Arbitrary combinations of helical-conical optical beams in free space 自由空间中螺旋-圆锥光束的任意组合

Journal of the Optical Society of America Pub Date : 2023-11-10 DOI: 10.1364/josaa.506476

Xiangyu Kang, Keyu Chen, Ziyan Li, Guanxue Wang, Xiumin Gao, Yi Liu

引用次数: 0

2π ambiguity-free digital holography method for stepped phase imaging：Erratum 阶梯相位成像的2π无模糊数字全息方法:勘误

Journal of the Optical Society of America Pub Date : 2023-11-10 DOI: 10.1364/josaa.509956

Li Tuo, Duo Zhang, Wenxiu Lei, qian zhang, shuai wang, Jun Dong

引用次数: 0

Underwater Image Recovery Based on Water Type Estimation and Adaptive Color Correction 基于水型估计和自适应色彩校正的水下图像恢复

Journal of the Optical Society of America Pub Date : 2023-11-09 DOI: 10.1364/josaa.502703

yang zhang, Tao Liu, zhen shi, kaiyuan dong

引用次数: 0

Optical single-channel cryptosystem based on the non-negative matrix factorization and face biometric in cyan–magenta–yellow–black color space 基于非负矩阵分解和人脸生物识别的青色-品红-黄黑空间光单通道密码系统

Journal of the Optical Society of America Pub Date : 2023-11-08 DOI: 10.1364/josaa.498878

Liao Zhang, Chen Tang, Yuxin Shen, Hongxuan He, Hengyi Tang, Zhenkun Lei

{"title":"Optical single-channel cryptosystem based on the non-negative matrix factorization and face biometric in cyan–magenta–yellow–black color space","authors":"Liao Zhang, Chen Tang, Yuxin Shen, Hongxuan He, Hengyi Tang, Zhenkun Lei","doi":"10.1364/josaa.498878","DOIUrl":"https://doi.org/10.1364/josaa.498878","url":null,"abstract":"In this paper, an optical color single-channel asymmetric cryptosystem based on the non-negative matrix factorization (NMF) and a face biometric in cyan–magenta–yellow–black (CMYK) space is proposed. To the best of our knowledge, this is the first time that NMF has been introduced into optical color image encryption. In the proposed cryptosystem, the color image in CMYK space is first decomposed into four color channels: C, M, Y, and K. By performing NMF operations on the four color channels, the four basic and sparse matrices can be obtained, respectively, which achieves asymmetry and saves computational resources. The four basis matrices can be used as private keys, and the four coefficient matrices are synthesized by the inverse discrete wavelet transform for subsequent encryption. Finally, the synthesized image is encoded with double random phase encoding based on phase truncation (PT). Compared with the existing PT-based cryptosystems, our cryptosystem can improve security against a special attack. In addition, the chaotic random phase mask is generated by a face biometric, which is noncontact and unique. Numerical simulation results are shown to verify the feasibility and robustness of our cryptosystem. Further, the proposed cryptosystem can be extended to encrypt multiple images conveniently.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135293275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optically isotropic longitudinal piezoelectric resonant photoelastic modulator for wide angle polarization modulation at megahertz frequencies 用于兆赫频率广角偏振调制的纵向压电谐振光弹性调制器

Journal of the Optical Society of America Pub Date : 2023-11-07 DOI: 10.1364/josaa.500167

Okan Atalar, Amin Arbabian

{"title":"Optically isotropic longitudinal piezoelectric resonant photoelastic modulator for wide angle polarization modulation at megahertz frequencies","authors":"Okan Atalar, Amin Arbabian","doi":"10.1364/josaa.500167","DOIUrl":"https://doi.org/10.1364/josaa.500167","url":null,"abstract":"Polarization modulators have a broad range of applications in optics. The acceptance angle of a free-space polarization modulator is crucial for many applications. Polarization modulators that can achieve a wide acceptance angle are constructed by attaching a piezoelectric transducer to an isotropic material, and utilize a resonant transverse interaction between light and acoustic waves. Since their demonstration in the 1960s, the design of these modulators has essentially remained the same with minor improvements in the following decades. In this work, we show that a suitable single crystal with the correct crystal orientation, functioning as both the piezoelectric transducer and the acousto-optic interaction medium, could be used for constructing a highly efficient free-space resonant polarization modulator operating at megahertz frequencies and exhibiting a wide acceptance angle. We construct the modulator using gallium arsenide, an optically isotropic and piezoelectric crystal, and demonstrate polarization modulation at 6 MHz with an input aperture of 1 cm in diameter, acceptance angle reaching $pm30^circ$, and modulation efficiency exceeding 50%. Compared to state-of-the-art resonant photoelastic modulators, the modulator reported in this work exhibits greater than 50 fold improvement in modulation frequency for the same input aperture, while simultaneously reducing the thickness by approximately a factor of 80. Increasing the modulation frequency of photoelastic modulators from the kilohertz to the megahertz regime and substantially reducing their thickness lead to significant performance improvements for various use cases. This technological advancement also creates opportunities for utilizing these devices in new applications.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135479892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0