The obtaining of giant laser pulses by optical pumping
Description
From coherent pumping studies a laser of short pulse duration was developed. Further study of laser effects in organic substances was envisaged. The first part of the work yielded awaited results, and led to the development of a single mode emitter (due to the small dimensions of the cavity). The principles of laser action were enumerated and the relative parameters defined. Various methods of obtaining pulses were discussed; the reasons behind the particular choice mode were given. A theoretical study was then made leading to the establishment of the fundamental equations defining the pulse formation process. An important part of the test deals with technical implications and the experimental results, which have arisen. The conclusion reviews possible applications. (author)
Abstract (French)
En etudiant le pompage coherent, nous avons eu pour but essentiel son application en vue d'obtenir des impulsions laser breves, ces travaux devant nous permettre ulterieurement la realisation d'effets laser dans de nouvelles substances organiques. Ce memoire relate la premiere etape de ce travail qui nous a mene au resultat attendu, les experiences nous conduisant de plus a une emission type monomode du fait des petites dimensions de la cavite. Apres avoir rappele brievement les principales notions de base du laser et defini les parametres qui regissent son fonctionnement, nous distinguerons les differents modes d'obtention des impulsions en explicitant les raisons qui ont guide notre choix vers l'un de ceux-ci; nous ferons ensuite une etude theorique qui nous permettra d'etablir les equations fondamentales definissant le processus de formation des impulsions. Une partie importante de cet expose sera consacree a la realisation technologique puis aux resultats experimentaux qui en decoulent; enfin dans la conclusion nous traiterons des applications possibles du procede. (auteur)Files
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Additional details
Additional titles
- Original title (French)
- Obtention d'une impulsion laser geante par pompage coherent
Identifiers
Publishing Information
- Imprint Pagination
- 175 p.
- Report number
- CEA-R--4086
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 45084315
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- COHERENT RADIATION; CRYSTAL DOPING; EXCITATION; FLUORESCENCE; FREQUENCY CONVERTERS; ION IMPLANTATION; LASER RADIATION; LASERS; OPTICAL PUMPING; PULSE TECHNIQUES; PULSES; SPECTROSCOPY
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; EMISSION; ENERGY-LEVEL TRANSITIONS; LUMINESCENCE; PHOTON EMISSION; PUMPING; RADIATIONS
Optional Information
- Notes
- 56 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/