Author Affiliations
Abstract
1 School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, P. R. China
2 School of Medical Technology, Beijing Institute of Technology, Beijing 100081, P. R. China
3 Department of Laser Medicine, First Medical Center of PLA General Hospital, Beijing 100853, P. R. China
4 Britton Chance Center for Biomedical Photonics – MoE Key Laboratory for Biomedical Photonics, Advanced Biomedical Imaging Facility, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, P. R. China
5 Precision Laser Medical Diagnosis and Treatment Innovation Unit, Chinese Academy of Medical Sciences, Beijing 100000, P. R. China
Vascular-targeted photodynamic therapy (V-PDT) is an effective treatment for port wine stains (PWS). However, repeated treatment is usually needed to achieve optimal treatment outcomes, possibly due to the limited treatment light penetration depth in the PWS lesion. The optical clearing technique can increase light penetration in depth by reducing light scattering. This study aimed to investigate the V-PDT in combination with an optical clearing agent (OCA) for the therapeutic enhancement of V-PDT in the rodent skinfold window chamber model. Vascular responses were closely monitored with laser speckle contrast imaging (LSCI), optical coherence tomography angiography, and stereo microscope before, during, and after the treatment. We further quantitatively demonstrated the effects of V-PDT in combination with OCA on the blood flow and blood vessel size of skin microvasculature. The combination of OCA and V-PDT resulted in significant vascular damage, including vasoconstriction and the reduction of blood flow. Our results indicate the promising potential of OCA for enhancing V-PDT for treating vascular-related diseases, including PWS.
Vascular-targeted photodynamic therapy (V-PDT) optical clearing agent (OCA) treatment efficacy enhancement skin-fold window chamber port wine stains 
Journal of Innovative Optical Health Sciences
2024, 17(2): 2350023
作者单位
摘要
1 东北石油大学 物理与电子工程学院,黑龙江 大庆 163318
2 东北石油大学 土木建筑工程学院,黑龙江 大庆 163318
为实现掺混汽油快速无损鉴别,提出一种利用t 分布邻域嵌入结合深度置信网络的鉴别方法,以解决机器学习中高维特征向量间的非线性关系。以92#、95#、98#及定比混合汽油为研究对象,采用多元散射校正算法对原始红外波段投射光谱测量数据进行预处理,利用t-SNE非线性方法进行光谱数据降维处理,分别采用深度置信网络和极限学习机建立汽油种类光谱鉴别模型并对比分析两种方法识别精度。研究表明:该文所选择方法构建的汽油鉴别模型性能更优,对汽油种类预测精准度高达92.5%,从而验证了该方法在汽油鉴别中的有效性。研究结果可为掺混成品油鉴别及溯源研究提供技术支持。
红外光谱 深度置信网络 掺混 鉴别 infrared spectrum deep belief networks blending identification 
应用光学
2021, 42(3): 504
Xiongbin Wang 1,2†Qiushi Wang 3†Yulong Chen 1,4†Jiagen Li 5[ ... ]Rui Chen 2,10,*
Author Affiliations
Abstract
1 Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
2 Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
3 School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
4 Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
5 Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), Shenzhen 518172, China
6 College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
7 e-mail: tche@szu.edu.cn
8 e-mail: jiajicheng@hubu.edu.cn
9 e-mail: zktang@um.edu.mo
10 e-mail: chenr@sustech.edu.cn
Chiral ligand conjugated transition metal oxide nanoparticles (NPs) are a promising platform for chiral recognition, biochemical sensing, and chiroptics. Herein, we present chirality-based strategy for effective sensing of mercury ions via ligand-induced chirality derived from metal-to-ligand charge transfer (MLCT) effects. The ligand competition effect between molybdenum and heavy metal ions such as mercury is designated to be essential for MLCT chirality. With this know-how, mercury ions, which have a larger stability constant (Kf) than molybdenum, can be selectively identified and quantified with a limit of detection (LOD) of 0.08 and 0.12 nmol/L for D-cysteine and L-cysteine (Cys) capped MoO2 NPs. Such chiral chemical sensing nanosystems would be an ideal prototype for biochemical sensing with a significant impact on the field of biosensing, biological systems, and water research-based nanotoxicology.
Photonics Research
2021, 9(2): 02000213
作者单位
摘要
1 东北石油大学 土木建筑工程学院, 黑龙江 大庆 163318
2 黑龙江省石油石化多相介质处理及污染防治重点实验室,  黑龙江 大庆 163318
利用IRTracer-100傅里叶变换红外光谱仪测量了柴油介质的光谱数据,根据光谱数据反演柴油介质的光学常数,分析不同温度对柴油透射光谱及光学常数的影响。研究结果表明: 在波段400~2000cm-1范围内存在470cm-1、1377cm-1、1454cm-13个吸收区域; 柴油的折射率对光谱的选择性很强,吸收指数呈现波动性变化; 在波段905~1200cm-1范围内,柴油的折射率随波长增加波动性较大,吸收指数随温度升高而明显下降,25℃波数为939cm-1时吸收指数存在最大值0.01523; 在波段1800~2100cm-1范围内,柴油的折射率随温度升高而增大,吸收指数在2085cm-1存在最大值0.00738。
柴油 温度 吸收指数 激光检测 折射率 diesel temperature absorption index laser detection refractive index 
光学技术
2019, 45(1): 36
作者单位
摘要
中国航空制造技术研究院光电技术研究室, 北京 100024
探索了长短脉冲复合激光在铝材损伤方面的应用。基于激光与材料相互作用的热效应原理, 讨论了材料表面反射率、激光与材料耦合系数等对损伤机制的影响, 数值计算了长脉冲激光辐照对2A12铝材的热效应、短脉冲激光对铝材的冲击压强及损伤时间。设计了长短脉冲复合激光辐照实验系统。结果表明, 设计的长短脉冲复合激光器能够实现对2A12铝材的有效快速损伤, 损伤效果好于单独的长脉冲或短脉冲作用, 有效降低了损伤时间。
激光技术 激光损伤 脉冲激光 高能激光器 
激光与光电子学进展
2018, 55(10): 101404
Author Affiliations
Abstract
Laboratory of X-ray Optics and Technologies, Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Signal distortion due to the non-uniform response of the detector degrades the measurement accuracy of most metrology instruments. In this Letter, we report a newly developed calibration source system for reference-based non-uniformity correction using a laser source, a fiber, and a diffusive module. By applying the Monte Carlo simulation, we show that the transmittance of the system highly depends on the cavity reflection of the diffusive module. We also demonstrate the use of this system to achieve a flat field at a very low non-uniformity (less than 0.2%) with proper illumination intensity, which most costly commercial integrating sphere systems traditionally cannot provide.
040.1240 Arrays 290.7050 Turbid media 290.0290 Scattering 030.1670 Coherent optical effects 030.6140 Speckle 
Chinese Optics Letters
2015, 13(4): 040402
作者单位
摘要
1 中国科学院 电子学研究所, 高功率微波源与技术重点实验室, 北京 1001902
2 中国科学院大学, 电子电气与通信工程学院, 北京 100049
通过使用多目标遗传算法对回旋行波放大器加载分布式损耗的电阻率和厚度参数进行优化,得出了两个参数的最佳组合值:损耗层厚度0.116 mm,电阻率为铜的77 882倍,此时放大器达到最大增益15.9 dB。并且通过单目标遗传算法对该值的准确性进行了验证,使得放大器在有效抑制回旋返波振荡的同时实现了增益的最大化。
多目标遗传算法 回旋行波放大器 分布式损耗 回旋返波振荡 multi-objective genetic algorithm gyrotron traveling wave amplifier distributed-loss circuit gyrotron backward wave oscillation 
强激光与粒子束
2015, 27(9): 093004
作者单位
摘要
东北石油大学 土木建筑工程学院, 黑龙江 大庆 163318
载玻片在液体光学测量、微生物学和基因学等领域实验中应用广泛, 其光学性能直接影响实验结果。提出了透射法测量载玻片光学常数的方法, 建立了载玻片透射比计算模型及其光学常数反演模型。通过TU-19双光束可见光分光光度计测量1.5mm和2.0mm厚度载玻片样品在310~600nm波长范围的透射光谱, 结合透射光谱利用光学常数反演模型, 得到了载玻片的光学常数。结果表明, 载玻片的衰减系数在10-6~10-8之间, 折射率在1.5~3.3之间。
载玻片 透射光谱 光学常数 折射率 衰减系数 slide glass transmission spectrum optical constants refractive index absorptance coefficient 
光学技术
2015, 41(5): 416
Author Affiliations
Abstract
Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
Path protections have become increasingly important for current mesh optical networks because fast restorations in generalized multiprotocol label switching (GMPLS) networks are uncertain. However, setting up additional disjoint paths to protect connections leads to more path setup blocking and signaling collisions. We analyze signaling collisions, path blocking and blocking probability, as well as calculate node-to-node blocking probabilities. A signaling-based path-segment protection (PSP) is proposed, which integrates segment protections and path protections as well as enhances the performance of path protections and ring protections. The setup of PSP connections causes less blocking probability than the setup of path protection connections in the simulations.
路径保护 基于信令的路径段保护 信令冲突 阻塞概率 060.4250 Networks 060.4257 Networks, network survivability 060.4261 Networks, protection and restoration 
Chinese Optics Letters
2011, 9(10): 100603

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