20點直播|廈大田中群院士分享等離激元光子學

2021年10月29日晚 8:00（北京時間），大家期待已久的 iCANX Talks第75期即將重磅來襲，本期直播我們有幸邀請到廈門大學的田中群教授來到iCANX Talks講座系列，敬請期待！

    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，累計收看觀眾已經達到千萬人次，受到了國內外專家學者的普遍好評和追捧，目前，iCANX Talks已經成為極具國際影響力的高科技云端學術峰會。

    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.

    話不多說，先讓小艾給大家詳細介紹重磅嘉賓及演講內容吧！

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

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

    納米等離激元光子學：從增強拉曼光譜與化學反應到分子光鑷

    Zhong-Qun Tian

    田中群

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

    固體表面物理化學國家重點實驗室，廈門大學

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.

    等離激元光子學（Plasmonics）是納米光子學的一個科學分支，通過研究等離激元在納米結構中的局域化和傳播而實現在亞波長尺度上操縱光，由此實現一系列獨特的光學特性，進而檢測和操縱分子。我將首先回顧二十世紀七十年代中期表面增強拉曼散射（SERS）效應的發現（也是等離激元光子學的首個興起的分支）發展的艱難歷程，探討開拓新方向的一些啟示。然后簡要介紹三個相關方向的最新進展：1）殼層隔絕納米粒子增強拉曼光譜(SHINERS)作為具有超高靈敏度的新一代 SERS技術，在單分子靈敏度、亞納米空間分辨率和電催化和電池等方面的應用；2）等離激元介導化學反應（PMCR）可在時間、空間和能量尺度上重新分配和轉換光子能量，從而驅動現有光化學和熱化學體系難以發生的化學反應；3）等離激元光捕獲/光鑷（SMPOT）策略可通過納米間隙的調制實現在溶液中直接捕獲、研究和釋放單個分子。

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，廈門大學教授。1982年在廈門大學獲得學士學位。1983-87年在英國南安普頓大學攻讀博士學位，師從英國皇家學會會士M. Fleischmann教授，主攻電化學SERS技術，之后回到廈門大學工作至今。主要研究興趣包括SERS、譜學電化學、等離激元光子學、納米化學等，先后獲得國際電化學會（ISE）、英國、法國、日本、美國和中國等多個學術獎項。2005年當選為中國科學院院士和英國皇家化學會會士。2010年當選為ISE會士，2014年當選為發展中國家科學院院士。曾任國際電化學會主席，現任福建省能源材料科學與技術創新實驗室主任、十余種國際學術期刊（Matter, JACS, Chem, Chem. Sci., National Science Rev.等）顧問編委、Science in China-Chemistry和 Chem. Soc. Rev. 副主編。

Keywords

    Nanoplasmonics納米等離激元光子學

    Raman spectroscopy 拉曼光譜

    Optical tweezer of molecules 分子光鑷

    同時，本次講座也邀請了來自麻省理工學院的方絢萊教授帶來精彩的主持。來自美國德克薩斯大學奧斯汀分校的韓森教授和香港大學的張世明教授擔任嘉賓。以及來自麻省理工學院的竇錦虎教授擔任X挑戰者。精彩不斷，敬請期待！iCANX將繼續努力，為科學交流服務，提供一個全球學術交流的頂級平臺，敬請大家期待！

    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!