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iCANX 75 期直播预告︱厦大田中群院士分享等离激元光子学:从增强拉曼光谱与化学反应到分子光镊分享

直播时间:10月29日(周五)20:00——21:30(北京时间)

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2021年10月29日晚 8:00(北京时间),大家期待已久的 iCANX Talks第75期即将重磅来袭,本期直播我们有幸邀请到厦门大学的田中群教授来到iCANX Talks讲座系列,敬请期待!

The highly expected iCANX Talks Vol.75 will be ceremoniously holed at 8:00 pm of October 29 (Beijing time). This time, we are fortunate to invite5 Professor Zhong-Qun Tian from Xiamen University to the iCANX Talks lecture series. so stay tuned!

在前面74期iCANX Talks直播中,累计收看观众已经达到千万人次,受到了国内外专家学者的普遍好评和追捧,目前,iCANX Talks已经成为极具国际影响力的高科技云端学术峰会。

In the previous 74 weeks iCANX talks , it totally attracted close to 10 million audiences worldwide. iCANX has been highlighted by experts and audiences globally. Now, iCANX Talks already becomes a well-known and popular international high-tech online event.

话不多说,先让小艾给大家详细介绍重磅嘉宾及演讲内容吧!

Here comes the abstracts & Bios of today’s iCANX Talks!

报告介绍

Nanoplasmonics: from enhanced Raman spectroscopy and chemical reaction to optical tweezer of molecules

纳米等离激元光子学:从增强拉曼光谱与化学反应到分子光镊

Zhong-Qun Tian

田中群

State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, China

固体表面物理化学国家重点实验室,厦门大学

Abstract

Plasmonics is a scientific branch of nanophotonics, studying the localization, propagation and guidance of surface plasmons in nanostructures to manipulate light in subwavelength dimensions. It can realize a series of unique optical properties and thus further sensing and manipulating single molecules. I’ll start from historical reminiscence on the discovery of surface-enhanced Raman scattering (SERS) effect, as the first branch of plasmonics, in the mid-1970 and discuss some inspiration from this pioneering work. Then my talk summarizes the recent progresses. 1) shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) as a new generation of SERS with ultra-high sensitivity for pushing the limit to single-molecule sensitivity, sub-nanometer spatial resolution and versatility of application. 2) plasmon-mediated chemical reaction (PMCR) based surface plasmons acting as mediators to redistribute and convert the photon energy in time, space and energy scales, thus drive chemical reactions, which has unique characteristics distinct from existing photo- and thermal-reaction systems. 3) a strategy of single molecule plasmonic optical trapping/tweezer (SMPOT) to directly trap, investigate and release single molecules in solution by using an adjustable plasmonic optical nanogap.

等离激元光子学(Plasmonics)是纳米光子学的一个科学分支,通过研究等离激元在纳米结构中的局域化和传播而实现在亚波长尺度上操纵光,由此实现一系列独特的光学特性,进而检测和操纵分子。我将首先回顾二十世纪七十年代中期表面增强拉曼散射(SERS)效应的发现(也是等离激元光子学的首个兴起的分支)发展的艰难历程,探讨开拓新方向的一些启示。然后简要介绍三个相关方向的最新进展:1)壳层隔绝纳米粒子增强拉曼光谱(SHINERS)作为具有超高灵敏度的新一代 SERS技术,在单分子灵敏度、亚纳米空间分辨率和电催化和电池等方面的应用;2)等离激元介导化学反应(PMCR)可在时间、空间和能量尺度上重新分配和转换光子能量,从而驱动现有光化学和热化学体系难以发生的化学反应;3)等离激元光捕获/光镊(SMPOT)策略可通过纳米间隙的调制实现在溶液中直接捕获、研究和释放单个分子。

Biography

Zhong-Qun Tian, Professor of Chemistry at Xiamen Univ., China. He obtained his BSc at Xiamen Univ. in 1982 and his PhD under the supervision of M. Fleischmann (FRS) on electrochemical SERS at the Univ. of Southampton in 1987. Then he returned to Xiamen Univ. and was promoted to full professor in 1992. His main research interests include SERS, spectroelectrochemistry, plasmonics, nanochemistry. He was elected as Member of the Chinese Academy of Sciences (MCAS) and RSC Fellow in 2005, Fellow of International Society of Electrochemistry (ISE) in 2010 and Fellow of the World Academy of Sciences (FTWAS) in 2014. He received several awards from ISE, USA, UK, France, Japan and China. He currently is the Director of Fujian Science & Technology Innovation Laboratory for Energy Materials, the Immediate-Past President of ISE, member of editorial advisory board for over ten international journals including Matter, JACS, Chem, Chem. Sci. and National Science Rev., and an associate editor for Science in China-Chemistry and Chem. Soc. Rev.

田中群,厦门大学教授。1982年在厦门大学获得学士学位。1983-87年在英国南安普顿大学攻读博士学位,师从英国皇家学会会士M. Fleischmann教授,主攻电化学SERS技术,之后回到厦门大学工作至今。主要研究兴趣包括SERS、谱学电化学、等离激元光子学、纳米化学等,先后获得国际电化学会(ISE)、英国、法国、日本、美国和中国等多个学术奖项。2005年当选为中国科学院院士和英国皇家化学会会士。2010年当选为ISE会士,2014年当选为发展中国家科学院院士。曾任国际电化学会主席,现任福建省能源材料科学与技术创新实验室主任、十余种国际学术期刊(Matter, JACS, Chem, Chem. Sci., National Science Rev.等)顾问编委、Science in China-Chemistry和 Chem. Soc. Rev. 副主编。

Keywords

Nanoplasmonics纳米等离激元光子学

Raman spectroscopy 拉曼光谱

Optical tweezer of molecules 分子光镊

同时,本次讲座也邀请了来自麻省理工学院的方绚莱教授带来精彩的主持。来自美国德克萨斯大学奥斯汀分校的韩森教授和香港大学的张世明教授担任嘉宾。以及来自麻省理工学院的窦锦虎教授担任X挑战者。精彩不断,敬请期待!iCANX将继续努力,为科学交流服务,提供一个全球学术交流的顶级平台,敬请大家期待!

At the same time, this lecture also invited Professor Nicholas X. Fang from MIT to bring a wonderful host. Professor Yuebing Zheng from the University of Texas at Austin and professor Shiming Zhang from the University of Hong Kong as guests. And Jinhu Dou from MIT as X-challenger. iCANX will continue to work hard to serve scientific exchanges and provide a top platform for global academic exchanges. Please look forward to it!

 
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