Optic Axis and Birefringence

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  • Опубліковано 16 жов 2024
  • 6:17 the equation for the effective refractive index only works with extraordinary rays.
    9:03 The horizontal rays should be slower. I drew the outgoing arrows the opposite way.
    I explained about the optic axis and birefringence of optical materials.
    I explained about the properties of refractive indices.

КОМЕНТАРІ • 54

  • @ReumiChannel
    @ReumiChannel  Рік тому +8

    6:17 the equation for the effective refractive index only works with extraordinary rays.
    9:03 The horizontal rays should be slower. I drew the outgoing arrows the opposite way.

  • @dimitricharitou8570
    @dimitricharitou8570 Рік тому +28

    This video was by far the clearest and best explanation of how birefringence interacts with light I've seen so far! I really needed this. Thank you so much for this content!

  • @TeaRex
    @TeaRex 9 місяців тому +3

    very useful for studying for my Space instrumentation exam!

  • @amittksingh
    @amittksingh 10 місяців тому +4

    I wish i had an option to give 100 likes on this video.
    This video is proof that concepts can be easy if explained properly.
    keep it up!

  • @ShellySingh-lz5cy
    @ShellySingh-lz5cy Місяць тому +1

    Amazing video, cleared all my doubts
    Great work

  • @nairafijithravindranath8862
    @nairafijithravindranath8862 2 місяці тому +1

    Very helpful. Lot of confusion resolved

  • @toppasan9089
    @toppasan9089 10 місяців тому +3

    Very helpful video. Great graphics. I took a non linear optic class and the professor wasn't good at relating the concepts with simple intuitions. After watching this video I feel like a lot of time spent on understanding the equations could have been saved. thank you so much!

  • @rohullahhaji
    @rohullahhaji 2 місяці тому +1

    Good and clear explanation!!! Helps me a lot! Thank you.

  • @D23185
    @D23185 2 місяці тому +1

    Immaculate explanation. Thanks.

  • @justin6088
    @justin6088 11 місяців тому +2

    bro that's insane that you make such a simple explanation. immediately subscribed.

  • @amelo4459
    @amelo4459 Місяць тому

    Thank you so much.
    I have my finals in 2 weeks, and this video really cleared up a lot of confusion I had surrounding Optical Mineralogy

  • @a.s.6898
    @a.s.6898 7 місяців тому +2

    wonderful video! I am about to have an exam in photonics and this video is just wonderful

  • @peterxv
    @peterxv 7 місяців тому +1

    Wow very helpful especially with the graphics and explanation starting around 4:40. Thanks!!

  • @camdenjohnson7345
    @camdenjohnson7345 11 місяців тому +4

    Wonderful explanation. The Wikipedia explanation for this is so bad that even after your good explanation here, I still can't make sense of what they are trying to say. Excellent work.

  • @rubasznie3486
    @rubasznie3486 11 місяців тому +1

    It's the best explanation that I found! I spend all day today to reading about polarisation but your video gives me the answer. I am the new fan :)

  • @Aryan0602
    @Aryan0602 12 годин тому

    GOD tier explanation

  • @JaimeLopez-wk4gu
    @JaimeLopez-wk4gu 8 місяців тому +2

    Simply, thank you

  • @ricardomachado7166
    @ricardomachado7166 6 місяців тому +1

    Better explanation than my teacher! Thanks

  • @supramayro434
    @supramayro434 Рік тому +2

    Thank you for useful information. This will be useful for me in the second Year of university and not only for me,but many people around the world. Thank you again💪

  • @AnujDineshTripathi
    @AnujDineshTripathi Рік тому +2

    Thank you so much for the video. The explanation is so simple and brilliant.

    • @ReumiChannel
      @ReumiChannel  Рік тому +1

      Haha thanks!

    • @AnujDineshTripathi
      @AnujDineshTripathi Рік тому

      @@ReumiChannel Would you be able to answer how the refractive index of a medium affects the path length? I am studying a case where a Fabry Perot resonator is made using a birefringent material. So I was analyzing the FSR along parallel and perpendicular polarizations

    • @AnujDineshTripathi
      @AnujDineshTripathi Рік тому +1

      @@ReumiChannel Would you be able to answer how the refractive index of a medium affects the path length? I am studying a case where a Fabry Perot resonator is made using a birefringent material. So I was analyzing the FSR along parallel and perpendicular polarizations

    • @ReumiChannel
      @ReumiChannel  Рік тому

      @@AnujDineshTripathi Hmm.. polarization dependence of a Fabry Perot? I'm not sure, but since birefringent materials have n_e and n_o separately, it should affect the path length (The angle of refraction, and the speed in the material would definitely be slightly different). By the way, it's quite difficult to calculate the angle of refraction when a ray is entering the birefringent material slightly angled (so incident angle isn't zero). That's like graduate level. That's all I could tell you.

  • @ghostyyulikethis5389
    @ghostyyulikethis5389 5 місяців тому +1

    Props up excellent video with clear explanations good job my guy

  • @reduanahmed3513
    @reduanahmed3513 Рік тому +2

    It was so effective. Hope you will bring more things.

  • @bennyorthner7223
    @bennyorthner7223 8 місяців тому +1

    Very clear explanation. Thanks a lot!

  • @user-qf3cg6nq9t
    @user-qf3cg6nq9t 7 місяців тому

    superb presentation, clear explaination, no confusion left after watching this video... thanks!

  • @fatemehabbasi3572
    @fatemehabbasi3572 6 місяців тому +1

    very clear and informative video!

  • @yours.anurag
    @yours.anurag 9 місяців тому +1

    thanks for this informative video

  • @headinclouds3172
    @headinclouds3172 6 місяців тому

    i wish i could give 100k likes alone to this video. Thanks a lot brother.

  • @TheWeirdTimelapse
    @TheWeirdTimelapse 3 місяці тому +1

    Thank you for this video 😊

  • @kuantumdot
    @kuantumdot 2 місяці тому

    I like the 2 cats at the end :) keep it up!

  • @davidlowit6484
    @davidlowit6484 Рік тому +1

    Amazing video!

  • @imaginarynumber416
    @imaginarynumber416 2 місяці тому +1

    Hi, thank you for this great explanation. I have a question is the optic axis always in the same direction as extraordinary ray?

  • @rezafathi4385
    @rezafathi4385 2 місяці тому +1

    although now I get it, but still it would be great to have the biaxial explanation as well. just for the sake of helping us grasp it better

  • @juanfernandosolerpiffarett8254
    @juanfernandosolerpiffarett8254 4 місяці тому +1

    hi, I have a cuestrion, it is trure that when a birrefrigant cystal is radiated with ligth at a 45º angle to its optic plane, the ligth that was originaly in fase will end up out of fase, becouse it does not take the sema time to go through the x axis ande the y axis. However, why is this not in opposition to the principle of least time??

    • @ReumiChannel
      @ReumiChannel  4 місяці тому

      Good question. You should first ask what group velocity is. Also, see graphical explanation for Snell's law.

    • @juanfernandosolerpiffarett8254
      @juanfernandosolerpiffarett8254 4 місяці тому

      @@ReumiChannel thanks

  • @lorisweber4376
    @lorisweber4376 9 місяців тому +1

    thanks good video

  • @nandini9331
    @nandini9331 11 місяців тому

    exalting video

  • @Regi62
    @Regi62 Місяць тому

    Very good

  • @murataslan3663
    @murataslan3663 2 місяці тому

    Thank you!

  • @Art-cq1zy
    @Art-cq1zy 8 місяців тому

    I don’t understand. Why are there two n0?

    • @d3s4ster
      @d3s4ster 4 місяці тому

      Because in a uniaxial crystal (where you have three n: n1, n2 and n3), you have two n that are equal to each other, so here for example it is n1=n2 and n3 is different. And then you rename it to no (not zero, but 'o' which stands for ordinary) and ee (where the 'e' stands for extraordinary).
      In result, we have "two" no because n1=n1=no.

  • @brandonflorida1092
    @brandonflorida1092 4 місяці тому

    Since you use the term so often, you might have defined "optic axis."