ERIC Number: ED054925
Record Type: RIE
Publication Date: 1969-Oct
Reference Count: N/A
Laser Mode Structure Experiments for Undergraduate Laboratories.
Phillips, Richard A.; Gehrz, Robert D.
Experiments dealing with laser mode structure are presented which are suitable for an upper division undergraduate laboratory. The theory of cavity modes is summarized. The mode structure of the radiation from a helium-neon laser is measured by using a photodiode detector and spectrum analyzer to detect intermode beating. Off-axial modes can be visually detected in the expanded laser beam and their presence correlated with signals displayed on the spectrum analyzer in agreement with the theory. (Author/TS)
Descriptors: College Science, Instructional Materials, Laboratory Experiments, Lasers, Physics, Science Activities
National Technical Information Service, Springfield, Virginia 22151 (AD-708 361)
Publication Type: N/A
Education Level: N/A
Authoring Institution: Minnesota Univ., Minneapolis.