【學術報告】Vladislav V. Yakovlev教授專題報告

報告題目：Ultrasensitive Raman Spectroscopy（超靈敏拉曼光譜）

報告人：Vladislav V. Yakovlev教授, 美國德州農工大學（Texas A&M University）

時間：2019年11月26日（周二）上午10:45

地點：光電大樓1026室

邀請人：顧敏院士

報告內容：

Optical imaging and sensing are routinely used in everyday life to remotely identify objects. Raman spectroscopy is a powerful spectroscopic technique, which allows analysis of chemical composition and structure of materials without any need for sample preparation. With all the advantages, a significant drawback of Raman spectroscopy is its low efficiency, which makes analysis of low-concentrated solutions and gaseous species rather challenging.

I will show how a 150-years old technique based on the use of integrated cavities can be successfully combined with modern Raman spectroscopy tools to achieve an unprecedented sensitivity of detection. I will describe the operating principle of an integrated cavity, demonstrate some potential applications, and explain how Raman spectroscopy can be used in the most efficient way for environmental sensing [1-3].

References:

[1] J. Bixler, M. Cone, B. Hokr, E. S. Fry, V. V. Yakovlev, and M. O. Scully, “Ultrasensitive detection of waste products in water using fluorescence emission cavity enhanced spectroscopy,” Proceedings National Academy of Sciences USA 111(20), 7208-7211 (2014).

[2] J. V. Thompson, B. H. Hokr, W. Kim, C. W. Ballmann, B. Applegate, J. Jo, A. Yamilov, H. Cao, M. O. Scully, and V. V. Yakovlev, “Enhanced coupling of light into a turbid medium through microscopic interface engineering,” Proceedings National Academy of Sciences USA 114 (30), 7941-7946 (2017).

[3] J. Thompson, B. Hokr, W. Kim, C. Ballmann, B. E. Applegate, J. Jo, A. Yamilov, H. Cao, M. O. Scully, and V. V. Yakovlev, “Enhanced optical coupling and Raman scattering via microscopic interface engineering,” Applied Physics Letters 111(20), 201105 (2017).

報告人簡介：

Dr. Vladislav V. Yakovlev是德州農工大學生物醫學工程、電子和計算工程和物理與天文學院的教授，主要研究領域：光學顯微鏡的研發以及在化學、生物學和醫學上的應用，例如體內分子和細胞結構的納米成像，單分子光譜蛋白質譜和結構分析。1990年，他從莫斯科國立大學獲得博士學位。在與Novatec激光系統公司(Novatec Laser System, Inc.)短暫停留后，他在UCSD的化學和生物化學系擔任博士后研究員和研究人員，開發了光學分子光譜、成像和控制的新工具。Dr. Yakovlev于1998年在威斯康星大學密爾沃基分校(University of Wisconsin - Milwaukee)擔任助理教授，并于2011年遷往德州農工大學(Texas A&M University)。他在PNAS，PRL，OL等科學期刊上發表了200多篇研究論文，總引用達7000次。他的研究得到了NSF, NIH, ARO, AFOSR, ONR和DARPA的支持。Dr. Yakovlev是OSA, AIMBE, APS和SPIE的會員。他是生物醫學光學雜志，Optica和應用科學的編輯委員會成員。