Recently, team of Professor Zhanshan Wang and Professor Xinbin Cheng from IPOE proposed an automatic classification method for hyperspectral images based on principal component analysis (PCA) and VGG (PCA-VGG). This method utilizes the characteristic spectral distillation method to convert the original hyperspectral image into a spectral-spatial feature image, and combined with a fine-tuned VGG...
Recently, Professor Yuzhi Shi from the team of Professors Zhanshan Wang and Xinbin Cheng at the School of Physical Science and Engineering, Tongji University, has studied the chiral optical forces on chiral particles in a complex spin-curl field and experimentally demonstrated the bidirectional movement of chiral particles with different sizes and handedness, and under different light polarizat...
Professor Ma Bin and colleagues from the Precision Optical Engineering Research Institute at Tongji University conducted near-earth space irradiation simulation experiments to investigate the mechanisms by which three space environmental factors, including proton irradiation, atomic oxygen irradiation, and space debris impact, individually and in combination, affect the laser damage thresholds ...
Recently, Professor Yuzhi Shi from team of Professor Zhanshan Wang and Professor Xinbin Cheng at the School of Physical Science and Engineering, Tongji University, discovered special properties of optical lateral forces by scanning the entire Poincaré sphere. He found that the polarization state corresponding to the maximum total lateral force is related to the size and refractive index of the ...
Recently, team of Professor Zhanshan Wang and Professor Xinbin Cheng from IPOE proposed a comprehensive performance domain tolerance methodology and successfully developed a prototype for freeform image spectrometers. The results were published in Optics Express with the title “Comprehensive performance domain tolerance analysis methodology for freeform imaging spectrometers”. Imaging spectro...
Recently, the team of professor Zhanshan Wang and Xinbin Cheng from the School of Physical Science and Engineering at Tongji University proposed a high-efficiency half-space optical beam scanning system based on perfect anomalous refraction metasurfaces. This work pioneers a novel approach to the design of high-efficiency anomalous refraction metasurfaces, driving the practical application of l...
Recently, the research team of Zhanshan Wang and Xinbin Cheng from School of Physics Science and Engineering, in collaboration with Jifeng Qu from the China Academy of Measurement Sciences, have realized the directional manipulation of resonances governed by Fabry-Pérot Bound States in the Continuum. Their research findings, titled “Manipulation of Resonances Governed by Fabry-Pérot Bound Stat...
Recently, Professor Yuzhi Shi and Professor Hui Zhang from the team of Professor Zhanshan Wang and Professor Xinbin Cheng at the School of Physics Science and Engineering, Tongji University, in collaboration with Professor Cheng-Wei Qiu from the National University of Singapore, have conducted an in-depth exploration and systematic review of the development trajectory, fundamental principles, a...
Recently, team of Professor Zhanshan Wang and Professor Xinbin Cheng from IPOE proposed an automatic classification method for hyperspectral images based on principal component analysis (PCA) and VGG (PCA-VGG). This method utilizes the characteristic spectral distillation method to convert the original hyperspectral image into a spectral-spatial feature image, and combined with a fine-tuned VGG...
Recently, Professor Yuzhi Shi from the team of Professors Zhanshan Wang and Xinbin Cheng at the School of Physical Science and Engineering, Tongji University, has studied the chiral optical forces on chiral particles in a complex spin-curl field and experimentally demonstrated the bidirectional movement of chiral particles with different sizes and handedness, and under different light polarizat...
Professor Ma Bin and colleagues from the Precision Optical Engineering Research Institute at Tongji University conducted near-earth space irradiation simulation experiments to investigate the mechanisms by which three space environmental factors, including proton irradiation, atomic oxygen irradiation, and space debris impact, individually and in combination, affect the laser damage thresholds ...
Recently, Professor Yuzhi Shi from team of Professor Zhanshan Wang and Professor Xinbin Cheng at the School of Physical Science and Engineering, Tongji University, discovered special properties of optical lateral forces by scanning the entire Poincaré sphere. He found that the polarization state corresponding to the maximum total lateral force is related to the size and refractive index of the ...
Recently, team of Professor Zhanshan Wang and Professor Xinbin Cheng from IPOE proposed a comprehensive performance domain tolerance methodology and successfully developed a prototype for freeform image spectrometers. The results were published in Optics Express with the title “Comprehensive performance domain tolerance analysis methodology for freeform imaging spectrometers”. Imaging spectro...
Recently, the team of professor Zhanshan Wang and Xinbin Cheng from the School of Physical Science and Engineering at Tongji University proposed a high-efficiency half-space optical beam scanning system based on perfect anomalous refraction metasurfaces. This work pioneers a novel approach to the design of high-efficiency anomalous refraction metasurfaces, driving the practical application of l...
Recently, the research team of Zhanshan Wang and Xinbin Cheng from School of Physics Science and Engineering, in collaboration with Jifeng Qu from the China Academy of Measurement Sciences, have realized the directional manipulation of resonances governed by Fabry-Pérot Bound States in the Continuum. Their research findings, titled “Manipulation of Resonances Governed by Fabry-Pérot Bound Stat...
Recently, Professor Yuzhi Shi and Professor Hui Zhang from the team of Professor Zhanshan Wang and Professor Xinbin Cheng at the School of Physics Science and Engineering, Tongji University, in collaboration with Professor Cheng-Wei Qiu from the National University of Singapore, have conducted an in-depth exploration and systematic review of the development trajectory, fundamental principles, a...
Recently, team of Professor Zhanshan Wang and Professor Xinbin Cheng from IPOE proposed an automatic classification method for hyperspectral images based on principal component analysis (PCA) and VGG (PCA-VGG). This method utilizes the characteristic spectral distillation method to convert the original hyperspectral image into a spectral-spatial feature image, and combined with a fine-tuned VGG...
Recently, Professor Yuzhi Shi from the team of Professors Zhanshan Wang and Xinbin Cheng at the School of Physical Science and Engineering, Tongji University, has studied the chiral optical forces on chiral particles in a complex spin-curl field and experimentally demonstrated the bidirectional movement of chiral particles with different sizes and handedness, and under different light polarizat...
Scientific discoveries and innovations rely on the constantly emerging techniques of observation and instrumentation. The advantages of extreme ultraviolet, X-ray, and neuron include shorter wavelengths and higher photon or particle energy, attributing them with a higher resolution, “core” level detection of electron state, and larger penetration depth when applied as a technique of observation. Therefore, they have been widely used in microscopy and telescope applications, as well as for the fabrication of ultra-high precisions under extreme conditions.
High-power laser systems and equipment have a significant impact on the solution of major scientific problems, the progress of the national defense equipment, and the development of the high-tech industries, whose core components as well as the weakness are the laser coatings. The research group built a development platform that includes the optimization design of laser coatings, all-flow-control preparation, performance characterization, and system application. They studied the interaction mechanism between the laser and materials and explored the loss mechanism and control techniques of laser coatings. An effective regulation of the coating structure, optical properties, and environmental adaptability has been achieved, which contributes to the development of the high-power laser system.
Being a precision measurement technology on the nanometric scale, nanometrology is a fundamental technology adopted by advanced nano-fabrication. The development of nanometrological standard substances is vital, not only to guarantee the dissemination of traceability, an elementary topic in nanometrology, but also to ensure the unity and accuracy of nano-geometric measurements. Thus far, nanotechnology is evolving towards the direction of reducing characteristic dimensions, which has forced the advanced manufacturing industry to urgently find nano-length standard substances with high accuracy and stability, including the linewidth, step height, linear scale, pitch (one-dimensional grating, 1D), and grid (two-dimensional grating, 2D).
By virtue of “artificial microstructures”, multi-dimensional optical field modulation can be achieved in micro-nano optics, including the amplitude, phase, polarization, and wavefront, which significantly surpasses the modulation with natural materials. Therefore, research at the micro-nano level is considered a vital branch of optics. Micro-nano optical devices not only promote the thinning and integration of optical systems, but also significantly empower the advancement of intelligent sensing technology, which is one of the key strategical areas of national interest.
同心同德同舟楫,济人济事济天下。同济大学自1907年建校以来,历经建校初期艰难创业中的和衷共济、吴淞时期跻身国立中的自强不息、抗战时期六次迁校中的弦歌不辍、建国初期布局调整中的重整旗鼓、改革开放快速发展中的全面振兴,新时代“双一流”建设中的卓越奋进。百十五载,同济大学从未因磨难而退却,从未因困境而止步,一代代同济人风雨同舟、百折不挠,积淀了“同舟共济”的精神内核,形成了“严谨、求实、团结、创新”的...
为促进全国各高校优秀大学生之间的交流,增进优秀大学生对同济大学物理科学与工程学院的了解,我院将开展全国优秀大学生暑期学校活动。本次暑期学校拟择优招收150名左右学员。活动时间:2022年7月5日-7月7日活动方式:线上——会议、直播等方式01学院、学科简介同济大学物理学科创建于20世纪40年代,践行“与祖国同行,以科教济世”的宗旨,形成了“格物穷理、求实创新”的学科传统,培养了朱洪元、吴式枢、李同保、张耀明等一...
1大赛主题我敢闯,我会创。2大赛目标与任务更中国、更国际、更教育、更全面、更创新,传承和弘扬红色基因,聚焦“五育”融合创新创业教育实践,激发青年学生创新创造热情,线上线下相融合,打造共建共享、融通中外的国际创新创业盛会,开启创新创业教育改革新征程。以赛促教,探索人才培养新途径。全面推进高校课程思政建设,深入推进新工科、新医科、新农科、新文科建设,不断深化创新创业教育改革,引领各类学校人才培养范式...
一、 申请条件基本条件要求同《同济大学2023年接收推荐免试研究生(含直接攻博)章程》。二、 申请材料1. 《同济大学接收推免免试研究生申请表》;(下载链接:https://yz.tongji.edu.cn/fujian3-tongjidaxuejieshoutuijianmianshiyanjiushengshenqingbiao.pdf)2. 本科阶段成绩单1份,须加盖学校教务处公章;3. 外语能力水平证明(如:国家英语四级或六级证书、雅思、托福、GMAT、GRE等);4. 本科阶段获奖证书、体现自身学术...
同心同德同舟楫,济人济事济天下。同济大学自1907年建校以来,历经建校初期艰难创业中的和衷共济、吴淞时期跻身国立中的自强不息、抗战时期六次迁校中的弦歌不辍、建国初期布局调整中的重整旗鼓、改革开放快速发展中的全面振兴,新时代“双一流”建设中的卓越奋进。百十五载,同济大学从未因磨难而退却,从未因困境而止步,一代代同济人风雨同舟、百折不挠,积淀了“同舟共济”的精神内核,形成了“严谨、求实、团结、创新”的...
为促进全国各高校优秀大学生之间的交流,增进优秀大学生对同济大学物理科学与工程学院的了解,我院将开展全国优秀大学生暑期学校活动。本次暑期学校拟择优招收150名左右学员。活动时间:2022年7月5日-7月7日活动方式:线上——会议、直播等方式01学院、学科简介同济大学物理学科创建于20世纪40年代,践行“与祖国同行,以科教济世”的宗旨,形成了“格物穷理、求实创新”的学科传统,培养了朱洪元、吴式枢、李同保、张耀明等一...
1大赛主题我敢闯,我会创。2大赛目标与任务更中国、更国际、更教育、更全面、更创新,传承和弘扬红色基因,聚焦“五育”融合创新创业教育实践,激发青年学生创新创造热情,线上线下相融合,打造共建共享、融通中外的国际创新创业盛会,开启创新创业教育改革新征程。以赛促教,探索人才培养新途径。全面推进高校课程思政建设,深入推进新工科、新医科、新农科、新文科建设,不断深化创新创业教育改革,引领各类学校人才培养范式...
一、 申请条件基本条件要求同《同济大学2023年接收推荐免试研究生(含直接攻博)章程》。二、 申请材料1. 《同济大学接收推免免试研究生申请表》;(下载链接:https://yz.tongji.edu.cn/fujian3-tongjidaxuejieshoutuijianmianshiyanjiushengshenqingbiao.pdf)2. 本科阶段成绩单1份,须加盖学校教务处公章;3. 外语能力水平证明(如:国家英语四级或六级证书、雅思、托福、GMAT、GRE等);4. 本科阶段获奖证书、体现自身学术...
同心同德同舟楫,济人济事济天下。同济大学自1907年建校以来,历经建校初期艰难创业中的和衷共济、吴淞时期跻身国立中的自强不息、抗战时期六次迁校中的弦歌不辍、建国初期布局调整中的重整旗鼓、改革开放快速发展中的全面振兴,新时代“双一流”建设中的卓越奋进。百十五载,同济大学从未因磨难而退却,从未因困境而止步,一代代同济人风雨同舟、百折不挠,积淀了“同舟共济”的精神内核,形成了“严谨、求实、团结、创新”的...
为促进全国各高校优秀大学生之间的交流,增进优秀大学生对同济大学物理科学与工程学院的了解,我院将开展全国优秀大学生暑期学校活动。本次暑期学校拟择优招收150名左右学员。活动时间:2022年7月5日-7月7日活动方式:线上——会议、直播等方式01学院、学科简介同济大学物理学科创建于20世纪40年代,践行“与祖国同行,以科教济世”的宗旨,形成了“格物穷理、求实创新”的学科传统,培养了朱洪元、吴式枢、李同保、张耀明等一...
As an advanced manufacturing technology, ultrafast laser processing has the advantages of true three-dimensional processing, adaptivity to a variety of materials, micro and nano processing accuracy, etc., which has been widely used in industry and scientific research, but there are still problems such as unclear processing mechanism and low single-point scanning efficiency.
With the development of ultra-strong ultrashort laser technology, researchers can look at the physical world in unprecedented dimensions and perspectives, including the attosecond time scale (1 attosecond =10-18 seconds) and the energy scale of 10 petawatts (1016W), these limit dimensions bring new meanings and mechanisms for particles and radiation sources.
Nonlinear optical materials are the core working materials in laser optical systems and integrated optoelectronic devices. Low vinamil semiconductor materials with excellent nonlinear optical properties have unique advantages in physical properties, integration and compatibility, and are one of the keys to building high-performance optoelectronic information systems in the future.
Over sixty years ago, the birth of lasers completely transformed our modern lives. Today, laser technology has become an indispensable part of various scientific and technological fields. Nearly twenty Nobel Prizes have been awarded to scientists who have made groundbreaking achievements at the forefront of optical science. In this presentation, we will outline key milestones in the development of modern optics using simple physics concepts, and explore how they have driven the exploration of new fields and had far-reaching impacts on other disciplines.
Optical crystals (such as BBO, KBBF, LiNbO3, etc.) have key functions such as laser frequency conversion, parametric amplification, signal modulation, etc., and are the core of laser technology and equipment. At present, the physical theory and material system based on traditional volume-phase optical crystals have been perfected.
In this talk, Professor Wu Shiwei will share his scientific research experience, analyze the three key factors of scientific research success, and analyze how to cultivate interest in physics research, improve skills, seize opportunities, and obtain high-quality scientific research results.
hotonic crystal is a kind of artificial new structure arranged by artificial "atoms", which has a unique ability to manipulate light, and has been highly valued by the international academia and industry, and has broad application prospects in the fields of optical communication, optical integration and optoelectronic devices.
This talk will provide an overview of the main 3D display technologies and detail a desktop light-field 3D display developed by our team. Electrowetting liquid lenses and the liquid lens-based continuous optical zoom microscope developed by the team will also be introduced.
Optoacoustic or photoacoustic imaging, harnessing the strengths of optical and ultrasound techniques, has gained significant traction in biomedical research. In this presentation, I will introduce our advancements in the development of state-of-the-art multimodal optoacoustic neuroimaging tools, enabling non-invasive exploration of the intricate dynamics of the brain in mice.
As an advanced manufacturing technology, ultrafast laser processing has the advantages of true three-dimensional processing, adaptivity to a variety of materials, micro and nano processing accuracy, etc., which has been widely used in industry and scientific research, but there are still problems such as unclear processing mechanism and low single-point scanning efficiency.
With the development of ultra-strong ultrashort laser technology, researchers can look at the physical world in unprecedented dimensions and perspectives, including the attosecond time scale (1 attosecond =10-18 seconds) and the energy scale of 10 petawatts (1016W), these limit dimensions bring new meanings and mechanisms for particles and radiation sources.
Nonlinear optical materials are the core working materials in laser optical systems and integrated optoelectronic devices. Low vinamil semiconductor materials with excellent nonlinear optical properties have unique advantages in physical properties, integration and compatibility, and are one of the keys to building high-performance optoelectronic information systems in the future.
Over sixty years ago, the birth of lasers completely transformed our modern lives. Today, laser technology has become an indispensable part of various scientific and technological fields. Nearly twenty Nobel Prizes have been awarded to scientists who have made groundbreaking achievements at the forefront of optical science. In this presentation, we will outline key milestones in the development of modern optics using simple physics concepts, and explore how they have driven the exploration of new fields and had far-reaching impacts on other disciplines.
Optical crystals (such as BBO, KBBF, LiNbO3, etc.) have key functions such as laser frequency conversion, parametric amplification, signal modulation, etc., and are the core of laser technology and equipment. At present, the physical theory and material system based on traditional volume-phase optical crystals have been perfected.
In this talk, Professor Wu Shiwei will share his scientific research experience, analyze the three key factors of scientific research success, and analyze how to cultivate interest in physics research, improve skills, seize opportunities, and obtain high-quality scientific research results.
Virtual 3D brings new experiences such as sight, sound and touch, and virtual walkthrough is a new experience mode derived from it
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