演講內容

Chipscale cavity opto-mechanics studies the interaction of photons and phonons in micro-resonators that simultaneously host high quality factor mechanical and optical resonances with strong spatial overlap. In this talk, I will discuss a case study of an integrated silicon opto-mechanical system, and highlight the various experimental capabilities that can be realized. One of the novel applications enabled by such a system is direct conversion of intensity modulation of near-IR laser light to motional electric current wherein the device acts as a photon-phonon translator. I will also demonstrate the unique ability of such a system to use the back-action of the optical field to launch self-sustained oscillations of the mechanical mode with zero flicker noise, which can be used as a stable timing reference as a resonant sensor, and as a low noise parametric amplifier, as well as multi-GHz mechanical oscillations. Towards the end of the talk, I will briefly highlight the on-going research activities in our group in electro-opto-mechanics and other MEMS and integrated sensing applications, and some of the previous work conducted at Analog Devices Inc.

講員簡介 

Dr. Siddharth Tallur is an expert in MEMS, photonic and opto-mechanical systems. His Ph.D. thesis research on designing novel low phase noise RF opto-mechanical and opto-acoustic oscillators won the best thesis award in the Electrical and Computer Engineering Department at Cornell University in 2013. Additionally, he has co-authored several papers on design and characterization of a low power ultra wide band (UWB) impulse radio transceiver with the ApselLab at Cornell University. Following the completion of his PhD in 2013, he worked as a MEMS Product Engineer and Product Applications Engineer at Analog Devices Inc. in Wilmington, MA, USA, where he conceived and led the characterization of novel gyroscope designs and mixed-signal circuit architectures for inertial motion-sensing applications. Recently he has been appointed as visiting faculty member at the International School of Semiconductor Technology at the National Chiao Tung University (NCTU), Hsinchu Taiwan, and chief investigator of the MEMS Proto Fab at IIT Bombay.

參加對象：對微系統領域有興趣之業界及學研界人士 

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聯絡方式：林金慧 小姐  國立清華大學動機系
                  Email: ch.lin@mx.nthu.edu.tw  電話: (03) 574-2494

                  方維倫 講座教授  國立清華大學動機系

                  Email: fang@pme.nthu.edu.tw  電話: (03) 574-2923

主辦單位：國立清華大學「微感測器與致動器產學聯盟」 (網址： http://www.usat.org.tw/)

              SEMI Taiwan (網址：http://www.semi.org/ch/)

          科技部https://www.most.gov.tw/

協辦單位：國立清華大學奈微所、國立清華大學動力機械系、國研院國家奈米元件實驗室、

國立清華大學工學院產學研合作聯盟