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Optical Spectroscopy of Semiconductor Nanomaterials and Nanostructures

Course 0000002401 in SS 2024

General Data

Course Type lecture
Semester Weekly Hours 2 SWS
Organisational Unit Semiconductor Nanostructures and Quantum Systems
Lecturers Jonathan Finley
Assistants:
Andreas Stier
Dates Thu, 14:00–16:00, WSI S101

Assignment to Modules

Further Information

Courses are together with exams the building blocks for modules. Please keep in mind that information on the contents, learning outcomes and, especially examination conditions are given on the module level only – see section "Assignment to Modules" above.

additional remarks This MSc level lecture focuses on advanced optical laser spectroscopy techniques and their application to probe the fundamental physical, electronic, vibrational and optical properties of semiconductors, novel heterointerfaces and quantum confined nanostructures. The course complements perfectly Semiconductor Synthesis and Nanoanalytics (PH2189) presented by Prof. Sharp. Modern laser systems are capable of generating intense, highly coherent electromagnetic fields that interact with the electrons in a solid. Such light-matter interactions give rise to a fascinating range of phenomena, ranging from incoherent responses such as stead-state and ultra-fast luminescence to coherent dynamical responses like four-wave mixing (FWM), optical pumping and multi-dimensional time-resolved spectroscopy having sub-picosecond temporal resolution. Besides facilitating the direct characterization of semiconductor materials, novel-heterointerfaces and nanoscale devices, these methods provide direct information on fundamental opto-electronic processes such as electron transfer, energy relaxation and thermalization, tunneling and transport dynamics and the interactions between electrons in the solid and diverse (e.g. vibrational, spin and magnetic) degrees of freedom in the nanoscale solids. We will discuss both far-field optical spectroscopic methods, that operate over length scales beyond the diffraction limit, as well as nano-optical approaches capable of probing systems at the size of the electronic wavefunction. The aim of this module is to introduce MSc students to the state-of-the-art in optical spectroscopic methods as they are utilized in the condensed matter and semiconductor physics research communities. We will introduce the underlying physics of the various methods, describe how they are implemented experimentally in the lab and examine specific case studiesfrom the literature that have led to key breakthroughs in condensed matter and semiconductor physics. Specific topics will include: Review of key-semiconductor materials and fundamental light-matter interactions (2 lectures)Incoherent Optical Spectroscopy Methods (5 lectures)-Tools of the trade (CW and ultrafast-lasers, photo-detectors, monochromators and interferometers, signal detection / processing, cryogenics)-Photoluminescence-Nanoscale optical microscopy-Spectroscopy of single semiconductor nanostructures Coherent (Non-Linear) Optical Spectroscopy (4 lectures)-Luminescence vs Reflection / Transmission Spectroscopy-Semiconductor Bloch Equations and Coherence Effects-Strong Excitation Effects-AC Stark Effect and Transient Spectral Oscillations-Examples (FWM, Photon echo, Resonance Fluorescence)-Decoherence and Phase Relaxation in NWs (exciton-exciton, e-X and exciton-phonon interactions-Raman and Brillouin Scattering Ultrafast Optical Methods (3 lectures)-Regimes towards equilibrium (relaxation, thermalization and recombination)-Pump-Probe Spectroscopy Methods-Probing Exciton and Phonon Dynamics in Bulk, QWs and QDs-Exciton Dynamics (Pico and Femtosecond Studies)-Light-emission and optical interactions in nanoscale environments
Links Course documents
E-Learning course (e. g. Moodle)
TUMonline entry
TUMonline registration

Equivalent Courses (e. g. in other semesters)

SemesterTitleLecturersDates
SS 2023 Optical Spectroscopy of Semiconductor Nanomaterials and Nanostructures Finley, J.
Assistants: Stier, A.
WS 2022/3 Optical Spectroscopy of Semiconductor Nanomaterials and Nanostructures Finley, J.
Assistants: Stier, A. 		Thu, 14:30–16:00, WSI S101
SS 2022 Optical Spectroscopy of Semiconductor Nanomaterials and Nanostructures Finley, J.
Assistants: Stier, A.
WS 2021/2 Advanced Optical Spectroscopy of Semiconductor Nanomaterials Finley, J.
Assistants: Zallo, E. 		Thu, 12:00–14:00, WSI S101
SS 2021 Advanced Optical Spectroscopy of Semiconductor Nanomaterials Finley, J.
Assistants: Stier, A.
WS 2020/1 Advanced Optical Spectroscopy of Semiconductor Nanomaterials Finley, J.
Assistants: Stier, A. 		Wed, 14:00–15:30, ZNN 0.001
WS 2019/20 Advanced Optical Spectroscopy of Semiconductor Nanomaterials Finley, J. Wed, 14:00–15:30, ZNN 0.001
and singular or moved dates
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