Investigation of Coherence Properties of Emission from a Pulsed Ruby Laser PDF Download
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Author: Raymond William Schneider
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 130
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Author: Raymond William Schneider
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 130
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Book Description
Author: Alexander Leon Flamholz
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 376
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Previous experiments have indicated an inversion dependent blue shift in the emission frequency of pulsed (non-Q-Switched) ruby lasers during the emission of a single pulse. The purpose of this work was to study the temporal coherence properties of single mode passively Q-Switched ruby laser emission by using a transient interference detection technique capable of better than 4 nsec resolution. The experiments were carried out using a Young's double pinhole interferometer to interfere the output of the laser with a portion of the same output delayed by a given time period. From the time dependence of the interference pattern phase, in combination with the simultaneously measured time dependence of laser power it was firmly established that an inversion dependent blue shift exists in the emission frequency of a single mode Q-Switched ruby laser. A number of physical mechanisms are discussed which could possibly account for a laser frequency shift. Experiments were also performed to determine the direction and magnitude of any existing frequency shifts in second harmonic emission (at 3472 A). (Author).
Author: Thurston C. Holley (CAPT, USAF.)
Publisher:
ISBN:
Category : Coherence (Optics)
Languages : en
Pages : 174
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Author: David Arthur Berkley
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 410
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
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The coherence properties of a pulsed ruby, multi-mode laser were determined by recording the time-averaged effect of the radiation field on photographic emulsion. The recorded relative intensity distributions were analyzed and compared with a theoretical, single mode prediction. The laser beam was expanded to a one-inch diameter beam. Then, with the aid of a Twyman-Green interferometer, a temporal coherence length of approximately 1.27 centimeters was observed. Also, for an aperture radius of 0.51 millimeters, in conjunction with a modified Youngs experiment, a spatial coherence length of approximately 2.2 millimeters was observed.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 212
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1040
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 300
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Author:
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 304
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Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1216
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