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Surface Plasmon Resonance Sensors Based on polymer optical fiber

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Journal of Electronic Science and Technology of China 2008年第4期6卷 357-360页

作者： Rong-Sheng Zheng Yong-Hua Lu Zhi-Guo Xie Jun Tao Kai-Qun Lin Hai Ming The authors are with Department of Physics University of Science and Technology of China Anhui Key Laboratory of Optoelectronic Science and Technology Hefei 230026 China

Surface Plasmon Resonance （SPR） is a powerful technique for directly sensing in biological studies, chemical detection and environmental pollution monitoring. In this paper, we present polymer optical fiber application in SPR sensors, including wavelength interrogation surface enhanced Raman scattering SPR sensor and surface enhanced Raman scattering （SERS） probe. Long-period fiber gratings are fabricated on single mode polymer optical fiber （POF） with 120 μm period and 50% duty cycle. The polarization characteristic of this kind of birefringent grating is studied. Theoretical analysis shows it will be advantageous in SPR sensing applications.

关键词： optical fiber gratings polymer optical fiber surface plasmon resonance surface plasmon wave(SPW) surface enhanced Raman scattering.

Properties of Single Mode polymer optical fiber

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Semiconductor Photonics and Technology 2003年第3期9卷 178-181页

作者： YANG Dong-xiao (Dept.of Inform.and Electron. Eng., Zhejiang University, Hangzhou 310027,CHN) Dept. of Inform. and Electron. Eng. Zhejiang University Hangzhou 310027

The density,dynamic modulus,Youngs modulus,tensile strength,extension properties,Fourier transform infrared spectrum and differential scanning calorimetry have been measured and discussed for single mode polymethyl-methacrylate optical *** results show that the fiber can provide large strain range for polymeric optical fiber Bragg gratings.

关键词： Single mode polymer optical fiber Characterization

Picosecond gain-switched polymer fiber random lasers

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Chinese Optics Letters 2024年第4期22卷 20-25页

作者：杜文彧高森张小娟李思祺蒯雁王治强曹志刚徐峰刘宇徐林张俊喜谢康俞本立胡志家 Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of EducationSchool of Physics and Opto-electronics EngineeringAnhui UniversityHefei 230601China School of Instrument Science and Opto-electronics Engineering Laboratory of Optical Fibers and Micro-nano PhotonicsHefei University of TechnologyHefei 230009China School of Opto-electronic Engineering Zaozhuang UniversityZaozhuang 277160China

Random lasers are a type of lasers that lack typical resonator structures,offering benefits such as easy integration,low cost,and low spatial *** features make them popular for speckle-free imaging and random number ***,due to their high threshold and phase instability,the production of picosecond random lasers has still been a *** this work,we have developed three dyes incorporating polymer optical fibers doped with various scattering nanoparticles to produce short-pulsed random fiber ***,stable picosecond random laser emission lasting600 ps is observed at a low pump energy of 50μJ,indicating the gain-switching *** inversion and gain undergo an abrupt surge as the intensity of the continuously pumped light nears the threshold *** the intensity of the continuously pumped light reaches a specific value,the number of inversion populations in the“scattering cavity”surpasses the threshold *** results based on a model that considers power-dependent gain saturation confirmed the above *** research helps expand the understanding of the dynamics behind random medium-stimulated emission in random lasers and opens up possibilities for mode locking in these systems.

关键词： random laser polymer optical fiber gain-switched laser picosecond pulse

Recent developments of Bragg gratings in PMMA and TOPAS polymer optical fibers

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Recent developments of Bragg gratings in PMMA and TOPAS poly...

Development of Flexible Luminous Fabrics for Photodynamic Therapy in Biomedical Applications

2007亚洲光电子会议先进的传感系统与应用分会场

作者： David J.Webb Kyriacos Kalli Karen Carroll Michael Komodromos Alex Argyros Maryanne Large Grigoriy Emiliyanov Ole Bang Erik Kjaer Photonic Research Group Aston University Aston Triangle Birmingham B4 7ET UK Nanophotonics Research Laboratory Higher Technical Institute Nicosia 2152 Cyprus Frederick Research Centre 7 Filokyprou Nicosia Cyprus optical Fibre Technology Centre University of Sydney Sydney NSW 2006 Australia Technical University of Denmark DK-2800 Kgs. Lyngby Denmark Danish polymer Centre (DTU) Technical University of Denmark DK-2800 Lyngby Denmark

We report on the temperature response of FBGs recorded in pure PMMA and TOPAS holey fibers. The gratings are fabricated for operational use at near IR wavelengths, using a phase mask and a cw He-Cd laser operating at 325nm. The room temperature grating response is non-linear and characterized by quadratic behavior for temperatures from room temperature to the glass transition temperature, and this permanent change is affected by the thermal history of the gratings. We also report the first FBG inscription in microstructured polymer optical fibers fabricated from TOPAS. This material is fully polymerized and has very low moisture absorption, leading to very good fiber drawing properties. Furthermore, although TOPAS is chemically inert and bio-molecules do not readily bind to its surface, treatment with Antraquinon and subsequent UV activation allows sensing molecules to be deposited in well defined spatial locations. When combined with grating technology this provides considerable potential for label-free bio-sensing.

关键词： fiber Bragg gratings polymer optical fiber temperature response PMMA TOPAS bio-sensing

来源： cnki会议评论

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Journal of Donghua University(English Edition) 2017年第6期34卷 719-721页

作者：孔令豹白紫千 Shanghai Ultra-precision Engineering Research Center of optical Manufacturing Fudan University Shanghai International College of Fashion and Innovation Donghua University

Fabrics integrating with side-emitting polymer optical fiber( SE-POF) have great potentials for photodynamic therapy( PDT),which is a form of phototherapy recognized as a treatment strategy that is both minimally invasive and minimally *** research has been undertaken to develop flexible luminous fabrics( FLF) device for PDT used in biomedical applications. The FLF device consists of SE-POFs, textile substrates,light source( LEDs or laser) with proper wavelength,and optical fiber coupling,etc. Different patterns of the fabrics were designed and fabricated purposely,and the light illumination effect was tested including the light power emitting from the patterned optical fiber fabrics,the stability of the illumination,and the light with different wavelengths. The work contributes to the successful development of an efficient and pain-alleviated illumination device for PDT in biomedical application.

关键词： flexible luminous fabrics(FLF) photodynamic therapy(PDT) side-emitting fiber polymer optical fiber biomedical application

Knot-inspired optical sensors for slip detection and friction measurement in dexterous robotic manipulation

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Opto-Electronic Advances 2023年第10期6卷 45-53页

作者： Jing Pan Qi Wang Shuaikang Gao Zhang Zhang Yu Xie Longteng Yu Lei Zhang Research Center for Humanoid Sensing Zhejiang LabHangzhou 311100China State Key Laboratory of Modern optical Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China.

Friction plays a critical role in dexterous robotic ***,realizing friction sensing remains a challenge due to the difficulty in designing sensing structures to decouple multi-axial *** by the topological mechanics of knots,we construct optical fiber knot(OFN)sensors for slip detection and friction *** introducing localized self-contacts along the fiber,the knot structure enables anisotropic responses to normal and frictional *** employing OFNs and a change point detection algorithm,we demonstrate adaptive robotic grasping of slipping *** further develop a robotic finger that can measure tri-axial forces via a centrosymmetric architecture composed of five *** a tactile finger allows a robotic hand to manipulate human tools *** work could provide a straightforward and cost-effective strategy for promoting adaptive grasping,dexterous manipulation,and human-robot interaction with tactile sensing.

关键词： robotic perception adaptive grasping slip detection force decoupling polymer optical fiber