How Lasers Work - A Complete Guide 

This is one whole chapter in my academics, done in 20 min

This video is a VERY scientifically accurate description of lasers which is given at a year 1 level of detail. I love the dry humor of the English robot! Probably the best educational video I have ever seen!

Bro created literally one of the best Videos to learn about Optoelectronics/Lasers (even on a Uni level) and then just stopped posting. What a God

4:30 The awkwardness level when a robot tries to replicate the human personal touch

Einstein: "This is how it works. Go build it." *50-100 years later* Engineers: "Tru."

4:30 "Hey there, little guy"

This is the best explanation I've ever seen on the LASER, by far! The introduction is also one of the best explanations I've seen on atomic energy levels. Thank you!

0:00 History and Overview 1:50 Unique Properties 3:55 How a Laser Works 4:20 Stimulated Absorption 6:52 Spontaneous Emission 8:35 Stimulated Emission 9:52 Metastable States 11:40 Population Inversion 12:45 Light Amplification 14:15 Standing Wave (18:00 Imperfections)

This is by far the best explanation of the LASER effect I have ever seen. And I really dig the almost "anonymous" like sound of the narrator's voice. :-)

13:54 Best Animation of a Wave Reflection!!

This is my first ever comment on a RU-vid video and I'm glad i saved it until this particuar one. This was indeed a super detailed and understandable explanation on lasers, the simulated sections in the video and other still images made it so much easier to understand the concepts. Thank you!

The best education video i have seen so far. It explains all aspects and dors not make a lot of shortcuts. Would be even better if the quantum effects also was mentioned more in detail :)

One of the best lessons I come across . Just wow ! . Congrats for making this topic easy.

This was perfect! Exactly what I was looking for. Thank you so much!

Thanks for posting this description and including the nuances of gain curve and material types.

this is the most tolerable synthetic voice i've ever heard. Thank you for the video, good stuff!

1. 20 minutes video 2. Robotic voice I thought of not watching this video but man, the concepts that you taught are phenomenal. I understood 1 whole big topic in just 20 minutes. Thanks a lot.

Very detailed explanation. I love this video😍

Bro your videos are very useful for engineering students I would like you to make more videos like this , I just enjoyed the whole chapter keep it up bro

Very easy to understand and detailed explanation. Thank you

I came here to refresh my memory, but I learned a lot from this video! 7:55 - You encouraged me to learn about how magnets work 10:50 - Is that where the heat in lasers come from? 12:16 - No, this seems like much more wasted energy. 16:29 - The whole section answered all my questions about laser cavities. P.S.: For some reason, drawing eyes on circles made the video interesting instead of tedious. Learned something about didactics, too. Well played, sir. Well played.

That was brilliant. A complex subject well explained. As a trained university lecturer I award you a score of 10/10. I like the robot voice, as it is very appropriate for explaining science.

The best video about lasers you can find on youtube! Thank you

Thanks , Sir . You saved us from lots of wasted web surfing. Your video is complete , compact, beautifully represented . Thanks Again

Amazing video ! I knew about spontaneous emissions and stimulated absorption but not spontaneous emission, thank you !

I don't remember why or how I went on a super ADHD tangent and disparately needed to know a LASER works but... really glad this exists. I had the basic idea in my head but... I needed the details for me to get to sleep. Thank you.

This was reeeeeally really useful! I didn't quite understand lasers before!! thank you so much!

Fantastic video with a solid in-depth explanation and enough detail to actually learn instead of mindless imagery with voice over! A definite thumbs up.

Very very very informative. Thank you for creating this video, it helps me a lot with my project!

Literary so amazing , I hadn't saw a video like this with so much detail. Thankyou so much for this video.

Wow. Just perfect explanation! Thank you so much!

Amazing clarity! Thank you!

Thanks dude. Great video. Much better than 90% of the animatic based scientific presentations on the Tube.

coming from How the Laser Happened (Townes). great animations and analogies. thank you.

Love it bro. Complete imformation i needed is all here.

I just like to say is that this Lasers Guide is the best i have ever seen before.

this video seriously saved my life, thank you!

Fantastic. Very informative ....nowhere such information in such concise manner available.

Great video, easy to follow and understand, thank you!

Wow! Strikingly comprehensive. The fact that only the robotic explanation made the video difficult for me is highly optimistic :D

Outstanding. Very well presented keeps your interest not too much but just enough. As each idea can be developed farther but the ideas are clearly presented. Cheers!

This is -by far- the best text-to-speech engine I have ever heard (well, at least that I could tell was T2S). I usually *hate* listening to T2S videos - but this one is actually palatable.

i can't understand why great videos like this have only ~ 50 000 views and stupid clickbaits get ~1 000 000 views . the information in this video is so well prsented, almost all the science needed (for understanding LASERs) is provided ..... and still people tend to like the stupid shitpost videos more ?! however, thank you so much, Scientized, for making this

One of the most scientific videos I've ever seen. He describes so good and of course this is an underrated video. Subscribed!

Brilliant video, thank you for explanation ^^

One of the best explanations for LASER. Keep it up.

Thank you so much You should make more videos Your work is good than many other youtubers in this topic.

Great video, really enjoyed it! Can you make another part on the more practical side of things - how exactly do you get all of those atoms excited in a short amount of time. Especially curious about how you get a continuous laser beam going. With this explanation, I think I can understand how to build a pulse laser but still don't understand continuous energy pumping in the system. Also maybe a bit more on the actual design and components. Maybe even some more info on other types of lasers like chemical, solid-state, gas...

Beautifully explained. Thank you.

Pure scientific content. I'd rather hear a robotic voice over bad English so I understand why the author didn't want to speak. Thank you and I like your humor too.

It's so accurate and really detailed video. it's so helpful.

Thats the best laser video ever. Days searching for this infos in a didactic way.

Hell of an amazing work by you it's lovely video and concepts are crystal clear 🤞🤞

Very good explanation ! Thank you !

Great explanation, n corresponds to the antinode/node

Very clear and complete understanding provided.

Amazing video , about stimulated emission. Especially

Thanks for the lesson!

Nice. Very informative. Thank you!

Thanks for the informative content

very well explained. thank you.

Fantastic video! Hope you get around to producing more one day.

Very helpful. Thank you!

Really appreciate the video. Loved the British accented TTS. LOL ;) All of this is also found in the book, "Lasers, and Masers". Added to play list. Thanks for sharing.

literally explain the whole chapter in 20mins, amazing 🤩

what software is used for Text-to-Speech conversion ?

This was the best video explaining how lasers work that I have seen here on RU-vid.

I have one question. Why the stimulated emission in coherent?

Wonderful explained

Thank you. VERY educative

Actually a really cool vid that I found extremely simple to follow 👍

Very nice and detailed. Really loved it

What an amazing video. I love science and people who make it fascinating to learn! Greetings from Colombia.

Thank you! it is very helpful

Thanks for the video! This was great

super se bhi apar ....thank you creator ..you are doing amazing work . Hats of to you sir ..

I learned a lot! Very nice video.

Thanks a lot for such a great and Crysta clear explanation. Loved the video.

That is so accurate and clear!! thanks a lot

JazakAllah Bhai It really helped a lot

Nice video... amazing to clear concepts... thanks..

Very well explained...

Didn't expect this to be very good, was pleasntly surprised. Godd job on this one (:

Very insightful and helpful thank you so much😍

Such a great video, thanks.

The best explanation ever so nice and educative sir

really good and clear explanations. plz upload more videos thanks

nice video - direct and = good understanding

Beautiful explanation. Love the voice

Great video! super helpfull! Thank you

Perfect explanation, thank you.

Good explanation. Thank you.

thank you so much for sharing this video

Amazing explanation about LASER, please upload more video thank you so much

8:18 So why things are ferromagnetic? Do you have that video you mentioned here?

Perfect. I learned alot.

Excellent video. Coherent and accurate.

very helpful thankyou

Very well done!

Great video. The synthetic voice was great.