402-0528-12L  Ultrafast Methods in Solid State Physics

SemesterSpring Semester 2022
LecturersS. Johnson, M. Savoini
Periodicityyearly recurring course
Language of instructionEnglish



Courses

NumberTitleHoursLecturers
402-0528-12 VUltrafast Methods in Solid State Physics2 hrs
Fri09:45-11:30HIT F 31.2 »
S. Johnson, M. Savoini
402-0528-12 UUltrafast Methods in Solid State Physics1 hrs
Fri11:45-12:30HIT F 31.2 »
S. Johnson, M. Savoini

Catalogue data

AbstractIn 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.
ObjectiveThe 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.
ContentThe 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
Lecture notesWill be distributed via moodle.
LiteratureWill be distributed via moodle.
Prerequisites / NoticeAlthough the course "Ultrafast Processes in Solids" (402-0526-00L) is useful as a companion to this course, it is not a prerequisite.

Performance assessment

Performance assessment information (valid until the course unit is held again)
Performance assessment as a semester course
ECTS credits6 credits
ExaminersS. Johnson, M. Savoini
Typesession examination
Language of examinationEnglish
RepetitionThe performance assessment is offered every session. Repetition possible without re-enrolling for the course unit.
Mode of examinationoral 20 minutes
This information can be updated until the beginning of the semester; information on the examination timetable is binding.

Learning materials

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Only public learning materials are listed.

Groups

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Restrictions

There are no additional restrictions for the registration.

Offered in

ProgrammeSectionType
Doctorate PhysicsSubject SpecialisationWInformation
Physics MasterSelection: Solid State PhysicsWInformation