Three – Mirror Laser Design to Calculate some Plasma Parameters


Dilshad O. H. Rahim

College of Education, Salahaddin University





ABSTRACT 

In this project, a new design have been suggested to use three r mirror laser as an interferometer by coupling a laser cavity with on other passive one containing low density cold plasma The aim of coupling is to study some important parameters of the plasma via a simply gained broadening technique. The parameters in question are the plasma refractive index (u), and the electron concentration 01.). The design was appearing to he successful when some numerical calculations 'were held and compared to previous experimental works 

Keywords: Atomicand molecular collision, plank) and laser physics. Enerquhestribution function.



References
1- Langmuir Parametric Instabilities of Cold Plasma, phy, Rev.„ 1929, vol.; 33 p..954. 
2-Jackson, JD Classical Electrodynamics, 1975, New York., Wiley. 
3-Ribe, .F.„ Review ofPlasma. Electro-dynamics Scientific. American, t972, vol. 127, p.277. 
4-ALfiven, H., iCosmical Electrodynamics„ New York, Oxford University Press,. 1972, Yd. ed., 
5-Landua, L., Quantum Mechanics, Inst. Ofphysical problems, Pergamon press ltd., 1977. 
6- Lifshitz, E.M.„ Quantum Electrodynamics, USSR Academy of Science, vol.. 44, p.982. 
7-Spencer. MB. and Lamb, W.E.,Theory of Two Coupled Laser, .phy. Rev., 1976, 1.15(2), 893. 
8-Jones, D.G.C. and i,aeck,, M.J.,. Multiw.Mirror Lasers, Opt Commimication„ 1976,16, 70. 
9-Lamb, W.E., Semi-Classical Theory of Laser,filly. Rev.. 1964, 112, 1429. 
10-Smith, P.W., The Optimum Geo Hefty of (632.8)nm He Ne .Laser, 1966 FUEL orf;Q. E. .24, p77,, 
11-Gordon, EL., and Lee .P.W., Theory of Optical Resonant cavities, Bettsystan T. journal 1964, 43, 507. 
I 2-Gerardo„ L.B. and Verd.yen, J1T.. Plasma Refractive Index: by Phase Measurements, App! Thy. Lett,. 1963, 30(7), 121, 
13-Zigler, A. and Zmam, H., Recent. Exp. On Laser — Plasma Interaction* App. Phy.. Lem, 1.997,155(i2), 55. 
14- Houches.4 L.. Dynamic Char. Of Mild Density 'Plasma, Am. .1 qfplasma, 1997, 77, 127.