国际光学工程学会
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作者:Jing Wu , Yongfeng Wu , Yunpeng Wang ...
来源:[J].Optical Engineering(IF 0.88), 2020, Vol.59 (2), pp.026104-026104
摘要:A single-longitudinal-mode pulsed Ho:YLF laser was demonstrated and studied experimentally at 2065.68 nm via injecting a unidirectional seed laser with double corner cubes to a Q-switched Ho:YLF power-oscillator. Up to 733-mW single-longitudinal-mode Ho:YLF laser with a structure...
作者:Changlun Hou , Yize Ren , Yufan Tan ...
来源:[J].Optical Engineering(IF 0.88), 2020, Vol.59 (2), pp.025104-025104
摘要:A compact optical zoom camera module with Alvarez freeform elements is reported. A 3 × magnification in the optical zoom system was achieved by means of lateral shifting two pairs of Alvarez lenses. The optical design performances, profiles of the freeform surfaces, toleranc...
作者:Luoxin Wang , Hongdong Zhao , Hongli Dai
来源:[J].Optical Engineering(IF 0.88), 2020, Vol.59 (2), pp.026101-026101
摘要:A Q-switched fiber laser at the C + L band using an organic solution saturable absorber (SA) of dimethyl sulfoxide (DMSO) is proposed and demonstrated. The modulation depth of the DMSO-SA is measured to be 5.09%. The Q-switched operation in the laser was achieved using DMSO-...
作者:Weizhe Cheng , Haobo Cheng , Yongfu Wen ...
来源:[J].Optical Engineering(IF 0.88), 2020, Vol.59 (2), pp.024112-024112
摘要:A telephoto structure-based laser autocollimation with common-path compensation method is proposed to compensate laser beam drift of laser autocollimator. According to the analysis, the measurement beam and the reference beam propagate alongside nearly the same path with approxim...
作者:Wenyi Yin , Yuzhu Liu , Qihang Zhang ...
来源:[J].Optical Engineering(IF 0.88), 2020, Vol.59 (2), pp.026105-026105
摘要:As a common air pollutant, incense has caused certain harm to the atmospheric environment and human health. The spectra of the incense ash smoke were analyzed online in situ to identify the main elements such as Ca, K, N, and H by laser-induced breakdown spectroscopy (LIBS) techn...
作者:Yujia Huang , Michelle Cua , Joshua Brake ...
来源:[J].Journal of Biomedical Optics(IF 2.881), 2020, Vol.25 (2), pp.025002-025002
摘要:Significance: Ultrasound-assisted optical imaging techniques, such as ultrasound-modulated optical tomography, allow for imaging deep inside scattering media. In these modalities, a fraction of the photons passing through the ultrasound beam is modulated. The efficiency by w...
作者:Jiwen Cui , Xingyu Zhao , Tao Zhang ...
来源:[J].Optical Engineering(IF 0.88), 2020, Vol.59 (2), pp.024106-024106
摘要:In the application of the grating, it is necessary to quickly obtain the measurement results of the structural parameters, and the parameters of the measured grating are usually reversed by means of scatterometry. We propose a neural network-based grating parameter optimization m...
作者:Jiawen Luo , Tao Jiang , Changle Shen ...
来源:[J].Optical Engineering(IF 0.88), 2020, Vol.59 (2), pp.026109-026109
摘要:The 2.5-terahertz quantum cascade lasers (THz QCLs) based on first-order distributed feedback (DFB) Bragg grating are reported. The loss and threshold gain within different grating duty cycles are calculated according to the mode-coupling theory. The laser output power reaches up...
作者:Hanu Phani Ram Gurram , Prashanth Panta , Vimal Prabhu Pandiyan ...
来源:[J].Optical Engineering(IF 0.88), 2020, Vol.59 (2), pp.024105-024105
摘要:Conventional cytology is a rapid chair-side method for diagnosis, but it relies on laborious fixing and staining protocols. As cytology specimens are transparent, it is very hard to visualize them under a bright-field microscope without staining. Quantitative phase imaging t...
作者:LeMoyne Habimana-Griffin , Dezhuang Ye , Julia Carpenter ...
来源:[J].Journal of Biomedical Optics(IF 2.881), 2020, Vol.25 (2), pp.026004-026004
摘要:Significance: The blood–brain barrier (BBB) is a major obstacle to detecting and treating brain tumors. Overcoming this challenge will facilitate the early and accurate detection of brain lesions and guide surgical resection of tumors.;; Aim: We generated an orthotopic brain...

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