Steven Johnson: Katalogdaten im Frühjahrssemester 2022 |
Name | Herr Prof. Dr. Steven Johnson |
Lehrgebiet | Physik |
Adresse | Institut für Quantenelektronik ETH Zürich, HPT D 15 Auguste-Piccard-Hof 1 8093 Zürich SWITZERLAND |
Telefon | +41 44 633 76 31 |
Fax | +41 44 633 10 54 |
johnsons@ethz.ch | |
URL | https://udg.ethz.ch |
Departement | Physik |
Beziehung | Ordentlicher Professor |
Nummer | Titel | ECTS | Umfang | Dozierende | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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402-0528-12L | Ultrafast Methods in Solid State Physics | 6 KP | 2V + 1U | S. Johnson, M. Savoini | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Kurzbeschreibung | In condensed matter physics, “ultrafast” refers to dynamics on the picosecond and femtosecond time scales, the time scales where atoms vibrate and electronic spins flip. Measuring real-time dynamics on these time scales is key to understanding materials in nonequilibrium states. This course offers an overview and understanding of the methods used to accomplish this in modern research laboratories. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Lernziel | The goal of the course is to enable students to identify and evaluate experimental methods to manipulate and measure the electronic, magnetic and structural properties of solids on the fastest possible time scales. This offers new fundamental insights on the couplings that bind solid-state systems together. It also opens the door to new technological applications in data storage and processing involving metastable states that can be reached only by driving systems far from equilibrium. This course offers an overview of ultrafast methods as applied to condensed matter physics. Students will learn which methods are appropriate for studying relevant scientific questions, and will be able to describe their relative advantages and limitations. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Inhalt | The topical course outline is as follows: Chapter 1: Introduction - Important time scales for dynamics in solids and their applications - Time-domain versus frequency-domain experiments - The pump-probe technique: general advantages and limits Chapter 2: Overview of ultrafast processes in solids - Carrier dynamics in response to ultrafast laser interactions - Dynamics of the lattice: coherent vs. incoherent phonons - Ultrafast magnetic phenomena Chapter 3: Ultrafast optical-frequency methods - Ultrafast laser sources (oscillators and amplifiers) - Generating broadband pulses - Second and third order harmonic generation - Optical parametric amplification - Fluorescence spectroscopy - Advanced optical pump-probe techniques Chapter 4: THz- and mid-infrared frequency methods - Low frequency interactions with solids - Difference frequency mixing - Optical rectification - Time-domain spectroscopy Chapter 5: VUV and x-ray frequency methods - Synchrotron based sources - Free electron lasers - High-harmonic generation - X-ray diffraction - Time-resolved X-ray microscopy & coherent imaging - Time-resolved core-level spectroscopies Chapter 6: Time-resolved electron methods - Ultrafast electron diffraction - Time-resolved electron microscopy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Skript | Will be distributed via moodle. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Literatur | Will be distributed via moodle. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voraussetzungen / Besonderes | Although the course "Ultrafast Processes in Solids" (402-0526-00L) is useful as a companion to this course, it is not a prerequisite. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
406-0023-AAL | Physics Belegung ist NUR erlaubt für MSc Studierende, die diese Lerneinheit als Auflagenfach verfügt haben. Alle anderen Studierenden (u.a. auch Mobilitätsstudierende, Doktorierende) können diese Lerneinheit NICHT belegen. | 7 KP | 15R | S. Johnson | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Kurzbeschreibung | Basic topics in classical as well as modern physics, interplay between basic research and applications. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Lernziel | Der Physikunterricht will die Grundgesetze der Physik verständlich machen, den Zusammenhang zwischen Grundlagenforschung und Anwendungen aufzeigen, das selbständige Denken im naturwissenschaftlich-technischen Bereich fördern und darüber hinaus etwas von der Faszination der klassischen und modernen Physik vermitteln. Dieses Ziel soll durch Vorlesungen mit Demonstrationsexperimenten und Übungen erreicht werden. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Inhalt | Electrodynamics, Thermodynamics, Quantum physics, Waves and Oscillations, special relativity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Literatur | P.A. Tipler and G. Mosca, Physics for scientists and engineers, W.H. Freeman and Company, New York | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Kompetenzen |
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