EFECTUL ELECTROOPTIC IN MONOCRISTALE

I.INTRODUCERE__________________________________________4
II.CONSIDERATII GENERALE
1. Cristale electrootice___________________________________________8
2. Efectul electrooptic___________________________________________8
3. Ecuatia indicatricei optice______________________________________9
III. DETERMINARI EXPERIMENTALE
1. Monocristalul (KDP)
1.1 Consideratii generale___________________________________10
1.2 Cresterea monocristalului de ___________________11
2. Confectionarea celulelor electrooptice_____________________________14
3. Montaje experimentale_________________________________________16
4. Principiile teoretice ale masurarii coeficientului electrooptic r41______________18
5. Principiile teoretice ale masurarii coeficientului electrooptic r63_________20
6. Observarea anizotropiei optice a cristalelor in lumina polarizata
Cazul monocristalului KDP_________________________________22
7. Masuratori experimentale
7.1. Principiul metodei_____________________________________26
7.2. Determinarea coeficientului electrooptic r63
pentru o lungime de unda data________________________27
7.3 Dispersia tensiunii de semiunda U/2 ______________________30
7.4 Dispersia coeficientului electrooptic r63 ____________________31
IV.CONCLUZI____________________________________________33
V. BIBLIOGRAFIE________________________________________35