Glossary entry (derived from question below)
English term
France
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Native in: French
Works in: English to French, Spanish to French
medium
| 4 +1 | milieu |
FX Fraipont (X)
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| 4 +1 | milieu |
Drmanu49
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| 5 | milieu |
Nesrine Echroudi
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Non-PRO (1): SJLD
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Proposed translations
milieu
http://www.forever-beauty.com/.../la-physique-des-lasers... - Translate this page
La longueur d'onde émise est fonction du milieu laser (voir ci- dessous). elle est cohérente : Les ondes lumineuses sont en phase (cohérence spatiale et ..."
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Note added at 4 mins (2012-05-21 10:22:43 GMT)
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"Milieu amplificateur
Aller à : Navigation, rechercher
Page d'aide sur l'homonymie Pour les articles homonymes, voir Amplificateur.
Dans un laser, le milieu amplificateur est un matériau qui permet d'amplifier la lumière le traversant. Ce gain est souvent créé par émission stimulée. Pour cela, une source d'énergie est nécessaire que l'on appelle pompage optique. Pour pouvoir réaliser l'inversion de population, il est nécessaire d'avoir des transferts de populations entre au moins trois niveaux du milieu amplificateur."
http://fr.wikipedia.org/wiki/Milieu_amplificateur
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Note added at 5 mins (2012-05-21 10:23:26 GMT)
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"The active laser medium (also called gain medium or lasing medium) is the source of optical gain within a laser. The gain results from the stimulated emission of electronic or molecular transitions to a lower energy state from a higher energy state previously populated by a pump source.
Examples of active laser media include:
Certain crystals, typically doped with rare-earth ions (e.g. neodymium, ytterbium, or erbium) or transition metal ions (titanium or chromium); most often yttrium aluminium garnet (YAG), yttrium orthovanadate (YVO4), or sapphire (Al2O3);[1]
Glasses, e.g. silicate or phosphate glasses, doped with laser-active ions;[2]
Gases, e.g. mixtures of helium and neon (HeNe), nitrogen, argon, carbon monoxide, carbon dioxide, or metal vapors;[3]"
http://en.wikipedia.org/wiki/Laser_medium
milieu
Format de fichier: PDF/Adobe Acrobat - Afficher
de radiation nécessite un milieu actif, qui est constitué ... Ce milieu est soumis à une source d'énergie représentée par un ... dium, gallium, grenat [YSGG], argon, diode et excimer ; ... each end of the laser medium a population of photons ...
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Note added at 13 minutes (2012-05-21 10:31:07 GMT)
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milieu actif
Tunisia
High Quality translation
Native in: Arabic (Variants: Tunisian, Egyptian) 
, French
Works in: English to French, English to Arabic, French to Arabic, and 6 more.
milieu
Un laser est composé de 4 organes principaux :
1 - Le milieu actif du laser : il est composé des atomes que l'on va venir exciter (ou pomper). Ce milieu peut être solide, liquide ou gazeux.
2 - Une source de pompage : elle permet d'exciter les atomes du milieu actif en injectant de l'énergie. Cette source peut être d'origine électrique ou lumineuse (un autre laser par ex).
3 - Un miroir qui réfléchit tous les photons incidents.
4 - Un miroir semi-réfléchissant qui laisse passer entre 1% et 10% des photons incidents et réfléchit le reste du rayonnement.
http://www.linguee.com/english-french/search?source=auto&query=laser+has+an+active+medium+-
http://landragin.pagesperso-orange.fr/ActuAV/rubriques/physique-electronique/Laser_Article_4.pdf
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