(2) Θ Θ Θ Θ

 ✂✁☎✄✝Formelsammlung
✆ ✞✠✟☛✡✌☞✍✆ ✆ ✟☛✎✑✏✓✒ ✔✖✕✘✗✚✙☛✛ ✜✣✢☎Optik
✤
✥ ✞✧✦★✞✪✩✘✙✫✁☎✏✑✡✌✒✬✞✠✡✭✞✧✗✭✮
✯
(2)
✯
✰ ✱ ✳
✲
✹✻✺✽✼✪✾❀✿❂❁✽❁❄❃❆❅❇✺✽✼❉❈✚❊❋❁ ✱ ●■❍ ❃❏✾❀✿❂❁✽❁❄❃❆❅❑✺❄✼❉❈✚❊❋❁
✵✸✷
Θ E ✶✴ Θ
R
▲ ✄✚✞✠▼❖◆✂✎✑✏✓✒
●■❍ ❃❏€❉◗❘❊❙✺❯❚ ❍ ✼✧❱✝❃❲❱✚❊❙❃❲❳❩❨❬❅❑✺✽✼✧❭✪✺✽❱❬❈❂❊❙✺❪❚❫❊❋✺✽✼✧❊❙◗❵❴❛❊❙❁❄❁✽❊❜❨❞✿❂❝ ✼✪❱❂❚❵❡❖❢❬❣ ❤✖❊❙❭✪✺❯✐
❍ ❣ ✿❂€✬❥
❦❧◗❘❊❙♠ ❍ ❊❋✼✧♥♦❭✪❊❙◗♣❴q❊❋❁✽❁✽❊♦✺❄❃❆❚❇❈✚❢✝✼✧❃❘❚r✿❂✼❬❚ts✉❭❉✿❂❨✧❊❙◗✈❱✚✺✽❁❪❚①✇
② ✱ ③✌④❩⑤⑦⑥❞④✑✱ ⑨③ ⑧❋⑤⑦⑥✍⑧
❭✍❥❶❨✬❥❷s❸❴❛❊❙❁✽❁❄❊❙✼✧❁❹✿❂❝ ✼✧❱✝❊❺✿✭❝ ✼❉❭✪❊⑨◗❻❚❼❃❲✺✽❳❩❨❽✺❷❣ ❤✖⑨❊ ❭❧✺ ❍ ❣❽✇
⑥ ④ ✱ ③④⑤②
⑥✍⑧✈✱ ⑨③ ⑧✣⑤ ②
➁➂❊➄➃✧✼✧✺❪❚❲✺✽❢✚✼➆➅✑◗❘❊⑨❳❲❨ ❍ ✼✪❱✝❃❲✺❄✼❉❭✪❊✣➇➈✇
❞➉ ➊ ✱ ✌③ ⑤❬③ ➊
➌ ✼✧❊❙❁❄❁✽✺ ❍ ❃❏❃❩❳❲❨✧❊❙❃♦➅✑◗❘❊⑨❳❩❨ ❍ ✼✧❱✚❃❲❱✝❊❋❃❲❊✣❚❲♥
✯
✯
➉ ④✘➍ ❃❏✺✽✼ ✴ ④ ✷✘✱ ➉ ⑧♣➍ ❏❃ ✺✽✼ ✴ ⑧ ✷
✴✫⑩❖✷
λ1
✴❀❾⑦✷
Θ 1 ✴➀❿✉✷
Θ2
✴✫➋❖✷
n1✴❀➎⑦✷
dichteres Medium
λ2
n2