Spectroscopic Techniques
Objectives
During the lecture course the students will develop transversal knowledge and skills allowing to:
• Improve the knowledge acquired during previous courses;
• Develop communication skills, to elaborate concise and coherent argumentation, both oral and in writing; develop team-work capabilities;
• Develop research competencies as well as aptitude for the interpretation of scientific literature.
By accomplishing these the students will have developed scientific knowledge and know-how in order to:
• Undertake informed decisions on which spectroscopic technique is suitable for the resolution of a given challenge, to investigate the fundamental properties of a particular material.
• Adequately process the retrieved spectral data and carry out spectral interpretation
• Interpret the obtained results taking into account the basic principles of Atomic and Molecular Physics in order to identify the origin of the observed transitions and energy levels involved; Interpret the shape and intensity of the observed signal and gather information relevant to the problem in hands.
General characterization
Code
11518
Credits
3.0
Responsible teacher
Paulo Manuel Assis Loureiro Limão Vieira
Hours
Weekly - 2
Total - 29
Teaching language
Português
Prerequisites
It is highly recommended previous knowledge on Optics, Atomic and Molecular Physics and Quantum Mechanics.
Bibliography
• Modern Spectroscopy 4th Ed. (Wiley), J.M. Hollas, 2004.
• Molecular Spectroscopy, Jeanne L. McHale, CRC Press, 2017.
• Optical Spectroscopy: Methods and Instrumentations, Nikolai V. Tkachenko, Elsevier Science, 2006.
• Laboratory Micro-X-Ray Fluorescence Spectroscopy: Instrumentation and Applications, Michael Haschke, Springer, 2014.
• Electronic and photoelectron spectroscopy - Fundamentals and case studies, Andrew M. Ellis, Miklos Feher, Timothy G. Wrigh, Cambridge University Press, 2005.
• Scientific articles to be specified during classes.
Teaching method
Available soon
Evaluation method
Available soon
Subject matter
Brief historical perspective; Considerations on Optics, Atomic (and Molecular) physics and Quantum Mechanics; Applications of Modern spectroscopy
2. Basic components of a spectrometer
Radiation sources and detectors. Optical components. Reflection, absorption and transmision spectroscopies
3. VUV photoabsorption spectroscopy
4. Ultraviolet photoelectron spectroscopy
Radiation sources, energy analyzer, detection and signal processing. Types of spectra. Direct ionization and self-ionization. Ressonant absorption and decay. Franck Condon factor. Angular distribution of photoelectrons. Electric dipole selection rules. Practical application
5. Vibrational spectroscopy – Infrared and Raman
Molecular vibrations and transition rules. Normal modes of vibration. Identification of IR active modes. Anharmocity of the harmonic oscillator. Interpretation of IR spectra.
Raman scattering. Classical approach to the Raman effect. The polarizability tensor and symmetry properties. Selection rules. Polarization of transitions. Practical application.
Programs
Programs where the course is taught: