PHYS 318 : INTERMEDIATE LAB The University of Virginia Spring 2003

CURRENT INFORMATION.

CLASS SYLLABUS.

EXPERIMENTS:

1. Atomic spectroscopy.
• Use a grating spectrometer with computer interface to study dischange tube and other spectra.
2. Electron spin resonance.
• Microwave frequency magnetic resonance absorption by unpaired electrons in various materials.
3. Holography.
• Recording of transmission holograms; holographic interferometry.
4. Josephson effects  [See notebook for instructions and background].
• Tunneling of electron pairs between superconductors and the a.c. and d.c. Josephson effects.
5. Laser spectroscopy  [See notebook for instructions and background].
• Use of a diode laser to study resonant absorption in rubidium vapor, including hyperfine structure.
• Instructions for downloading data from the TDS220 storage scope to computer.
6. Nuclear.
• Gamma spectroscopy and gamma-gamma correlations.
7. Nuclear magnetic resonance.
• Manipulation of nuclear spin orientation by pulsed radio-frequency fields.  Measurement of spin relaxation times T₁ and T₂.
• Instructions for downloading data from the HP54503A storage scope to computer.
8. Optical diffraction and ultrasonics.

1. Optical pumping.
• Dynamic polarization of rubidium atoms by resonant circularly polarized light.  Determination of the weak-field Zeeman splitting by magnetic resonance; quadratic Zeeman effect.
2. Vacuum techniques.
• Properties of various types of pumps, pressure gauges, etc.; deposition of metal films.
3. X-ray diffraction.
• Bragg diffraction by powder samples of simple crystals, using the Siemens diffractometer.
4. Zeeman effect.
Splitting of mercury spectral lines in a magnetic field.
5. Scanning Probe Microscopy.
Use of atomic force microscope and scanning tunneling microscope to study surfaces of various samples
Magnetic levitation / Densimeter  [See notebook for instructions and background].
Measure the density of water as a function of temperature using a magnetic float.