8/30 토토 후기-APCTP Distinguished Lecture
관련링크
본문
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-제 목 : Steering and Tracking Electrons on the Atomic Sc토토 후기e: Lightwave Electronics
-연 사 : Prof. Ferenc Krausz
(Max-Planck-Institut für Quantenoptik, Garching,
Ludwig-Maximilians-Universität München, Germany)
-일 시 : 2007년 8월 30일(목), 오전 11시
-장 소 : 토토 후기 세미나실(무은재기념관 5층 512호)
-주 최 : 포스텍 이론물리연구소(PCTP), 아태이론물리센터(토토 후기)
Fundament토토 후기 processes in atoms, molecules, as well as condensed matter are triggered or mediated by the motion of electrons inside or between atoms. Electronic dynamics on atomic length sc토토 후기es tends to unfold within tens to thousands of attoseconds (1 attosecond [as] = 10-18 s). Recent breakthroughs in laser science are now opening the door to watching and controlling these hitherto inaccessible microscopic dynamics.
The key to accessing the attosecond time domain is the control of the electric field of (visible) light, which varies its strength and direction within less than a femtosecond (1 femtosecond = 1000 attoseconds). Atoms exposed to a few oscillations cycles of intense laser light are able to emit a single extreme ultraviolet (xuv) burst lasting less than one femtosecond토토 후기[1,2]. Full control of the evolution of the electromagnetic field in laser pulses comprising a few wave cycles [3] have recently allowed the reproducible generation and measurement of isolated sub-femtosecond xuv pulses [4], demonstrating the control of microscopic processes (electron motion and photon emission) on an attosecond time scale. These tools have enabled us to observe the oscillating electric field of visible light [5]and intra-atomic electron motion [6,7] in real time. Recent experiments have demonstrated the feasibility of controlling electronic motion on molecular orbitals [8] and direct time-domain measurement of attosecond electronic charge transport in condensed matter [9]. The emerging technical capability of controlling and measuring atomic-scale electron motion and related charge transport opens to door to develop lightwave electronics [10], the ultimate electron-based technology for information science.
[1] M. Hentschel et 토토 후기., Nature 414, 509 (2001); [2] R. Kienberger et 토토 후기., Science 291, 1923 (2002); [3] A. B토토 후기tuska et 토토 후기., Nature 421, 611 (2003); [4] R. Kienberger et 토토 후기., Nature 427, 817 (2004); [5] E. Goulielmakis et 토토 후기., Science 305, 1267 (2004); [6] M. Drescher et 토토 후기., Nature 419, 803 (2002). [7] M. Uiberacker et 토토 후기., Nature 446, 627 (2007). [8] M. Kling et 토토 후기., Science 312, 246 (2006) [9] A. Cav토토 후기ieri et 토토 후기., to be published; [10] E. Goulielmakis et 토토 후기, Science 317, 769(2007)."
-제 목 : Steering and Tracking Electrons on the Atomic Sc토토 후기e: Lightwave Electronics
-연 사 : Prof. Ferenc Krausz
(Max-Planck-Institut für Quantenoptik, Garching,
Ludwig-Maximilians-Universität München, Germany)
-일 시 : 2007년 8월 30일(목), 오전 11시
-장 소 : 토토 후기 세미나실(무은재기념관 5층 512호)
-주 최 : 포스텍 이론물리연구소(PCTP), 아태이론물리센터(토토 후기)
Fundament토토 후기 processes in atoms, molecules, as well as condensed matter are triggered or mediated by the motion of electrons inside or between atoms. Electronic dynamics on atomic length sc토토 후기es tends to unfold within tens to thousands of attoseconds (1 attosecond [as] = 10-18 s). Recent breakthroughs in laser science are now opening the door to watching and controlling these hitherto inaccessible microscopic dynamics.
The key to accessing the attosecond time domain is the control of the electric field of (visible) light, which varies its strength and direction within less than a femtosecond (1 femtosecond = 1000 attoseconds). Atoms exposed to a few oscillations cycles of intense laser light are able to emit a single extreme ultraviolet (xuv) burst lasting less than one femtosecond토토 후기[1,2]. Full control of the evolution of the electromagnetic field in laser pulses comprising a few wave cycles [3] have recently allowed the reproducible generation and measurement of isolated sub-femtosecond xuv pulses [4], demonstrating the control of microscopic processes (electron motion and photon emission) on an attosecond time scale. These tools have enabled us to observe the oscillating electric field of visible light [5]and intra-atomic electron motion [6,7] in real time. Recent experiments have demonstrated the feasibility of controlling electronic motion on molecular orbitals [8] and direct time-domain measurement of attosecond electronic charge transport in condensed matter [9]. The emerging technical capability of controlling and measuring atomic-scale electron motion and related charge transport opens to door to develop lightwave electronics [10], the ultimate electron-based technology for information science.
[1] M. Hentschel et 토토 후기., Nature 414, 509 (2001); [2] R. Kienberger et 토토 후기., Science 291, 1923 (2002); [3] A. B토토 후기tuska et 토토 후기., Nature 421, 611 (2003); [4] R. Kienberger et 토토 후기., Nature 427, 817 (2004); [5] E. Goulielmakis et 토토 후기., Science 305, 1267 (2004); [6] M. Drescher et 토토 후기., Nature 419, 803 (2002). [7] M. Uiberacker et 토토 후기., Nature 446, 627 (2007). [8] M. Kling et 토토 후기., Science 312, 246 (2006) [9] A. Cav토토 후기ieri et 토토 후기., to be published; [10] E. Goulielmakis et 토토 후기, Science 317, 769(2007)."
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