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【導(dǎo)讀】tkEjtkEitkEyx,?y. tkzi. ~therelativephases(?=?y-?x). ~~~written,x=0,forconvenience. 00~~~Theelectricfield. written,Wherewehavesetthe. phase?y=0,for. ~~~o?=m?for. m=0,?1,?2,?3,…Thenwemusthave,inclinedatanangle?=tan-1(Eoy/Eox). E1??~~~SupposeEox=Eoy=A. 90o=?/2. AttheinstantEx. Afourthofaperiod. Forthesecasesitis. necessarytomake?y. >?x.Why?Thisisbecausewe. t)isnegative. y. Choose?x=0and?y=?,sothat?x>?y. ThenourE-fieldsare. indicatesalagin. Toseethislag(inaction),taketherealparts. Wecanthenwrite. Rememberingthat?=2?Also,sinceE2=Ex2+Ey2=A2(cos2?t+sin2?t)=A2. Thetipofthearrow
【正文】 ?y represent the advance in phase of the ponents ? ?? ?yyyxxxioyioyioxioxeEoeEeEoeE????????intint???????yxiieeM??0021 Jones matrix of a Quarter Wave Plate ? Consider a quarter wave plate for which |Δ?| = ?/2 ? For ?y ?x = ?/2 (Slow axis vertical) ? Let ?x = ?/4 and ?y = ?/4 ? The matrix representing a Quarter wave plate, with its slow axis vertical is, ???????????????? ??ieeeM iii00100 444 ???22 Jones matrices: HWP ? For |Δ?| = ? ?????????????????????????????????????100100100100222222??????iiiiiieeeMeeeMHWP, SA vertical HWP, SA horizontal 23 Optical elements: Quarter/Half wave plate ? When the phase difference Δ? = ?/2 : Quarterwave plate Δ? = ? : Halfwave plate ?/2 ? 24 Optical elements: Rotator ? Rotates the direction of linearly polarized light by a particular angle ? x y Rotator SA ? 25 Jones matrix for a rotator ? An Evector oscillating linearly at ? is rotated by an angle ? ? Thus, the light must be converted to one that oscillates linearly at (? + ? ) ? One then finds ? ?? ????????????????????????????s inc oss inc osdcba?????? ??????c oss ins inc osM
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