The Application of Holography to Sonic Boom Investigations

The Application of Holography to Sonic Boom Investigations

A Q-switch single-mode ruby laser is used for holographic recording of simulated sonic booms. The gaseous objects are visualized by means of the following techniques: 1) Differential interferometry in polarized light, as well as the Schlieren method with defocused phase plate. Both techniques are ap...

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Veröffentlicht in:IEEE transactions on aerospace and electronic systems 1972-11, Vol.AES-8 (6), p.751-756
Hauptverfasser: Smigielski, P., Hirth, A., Thery, C.
Format: Artikel
Sprache:eng
Schlagworte:
Gas lasers
Holography
Light sources
Optical interferometry
Optical pulses
Optical resonators
Pressure measurement
Pump lasers
Testing
Visualization
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Zusammenfassung:A Q-switch single-mode ruby laser is used for holographic recording of simulated sonic booms. The gaseous objects are visualized by means of the following techniques: 1) Differential interferometry in polarized light, as well as the Schlieren method with defocused phase plate. Both techniques are applied to the holographically recorded wave (directional lighting).2) Interferometry by double exposure with directional lighting.
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.1972.309605