MSEG 611: Theory, Experiment and Applications in Vibrational Spectroscopy
Instructors: J. Rabolt, B. Chase + Guest Lecturers
M-W: 3:35-4:50
Location: ISE 205
Course Description:
The course will cover the fundamental theoretical and experimental aspects of vibrational
spectroscopy including normal modes of vibration and conditions for scattering,
absorption and emission. Experimental methods discussed will include: FT-IR, 2D
analysis methods, Raman scattering, neutron scattering, photothermal spectroscopy
(mIRage) and AFM-IR spectroscopy (NanoIR2). The latter two are new instruments at
UD that combine light and atomic force microscopy with a tunable IR laser. They are
capable of obtaining IR spectra (3600-900 cm-1) at SPATIAL resolutions of 50-100 nm
(NanoIR2) and 500 nm (mIRage) and are the only instruments on the East coast in an
academic environment. As part of this course, demonstrations/labs of our existing
instrumentation in the ISE Advanced Materials Characterization Laboratory (ISE 151) will
supplement the lectures and representative applications of each will be discussed. One
or two classes will be devoted to the analysis and discussion of current literature related
to vibrational spectroscopy
Corequisites: None
Prerequisites: undergraduate degree in science or engineering in progress
[Feb 10: start - May 18: end; Spring break March 27 – April 5; total of 25 classes (1
open book midterm and 1 open book final exam = total of 23 lectures/labs); occasional
assignments]
1) Course Introduction (topics to be covered, lab demos, evaluation metrics)
2) Principles of vibrations (3)
a. What are vibrations
b. Diatomic vibration, harmonic oscillator
c. Classical versus quantum
d. Anharmonicity
e. Polyatomic molecules
f. Localized vibrations
g. Normal coordinates
h. Group frequencies
i. Collective vibrations in solids
j. Vibrations in semi-crystalline polymers and amorphous solids
k. Phonon dispersion
l. Absorption vs. scattering
m. Dipole moment operator
n. Polarizability operator
o. IR selection rules
p. Raman selection rules
3) Infrared instrumentation(2 + 1 Lab demo: Chase)
a. FTIR
b. Sampling techniques
i. Transmission
ii. ATR
iii. Specular Reflection/Grazing Angle
iv. Diffuse reflection
v. Photoacoustic
vi. Emission
c. AFM-IR
4) Raman instrumentation(2 + 1 Lab demo: Rabolt)
a. Sample preparation and fluorescence
b. Dispersive Raman
c. FT Raman
d. Surface Enhanced Raman (SERS) vs. Resonance Raman (RRS)
e. Sampling techniques
i. 180 versus 90 degree
ii. microscope
iii. liquids
iv. waveguides
v. SERS
5) Neutron Scattering (2: Mike Crawford (DuPont Retired))
6) 2D Correlation Spectroscopy (3: Isao Noda (P&G Retired))
7) Literature Paper analysis and discussion (2)
8) Applications (7)
a. Laminates
b. Surfaces, Interfaces, Polysilanes
c. Polymers, Molecular Orientation, fibers
d. Industrial Applications