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nice channel pls do it more you will grow

very perfect. thanks

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

Lies lies lies utter dribble utter nonsense and more lies no Einstein had nothing to do with lasers no quantum mechanics has nothing to do with lasers you people are foolish ignoramuses and you should throw your diplomas in the waste bin

literally explain the whole chapter in 20mins, amazing 🤩

It’s scary when think about it

Excellent contents!

First of all, incredible video! I have some questions: 1) Why does (at 13.55) the amplitude grow, is that due to constructive interference that the waves are simply adding up? Or is it the photons adding up creating one bigger wave? 2) nevermind the rest for now I need to focus on what I actually need to study now ^^

fantastic video, you're awesome

When did people unlearn to speak and need a robot to read a text… can’t listen to this shitty voice for long… but your first 5 Mins i could watch where pretty nice. Just let a person read it next time.

1:01 inaccurate Nikola tesla did that with his xrays and microwave devices....

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

Now this one is some real science of laser.

❤

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.

LASER 🎉

Robot voices are harsh and i won't watch it on mute

very nice. short and satisfying

Amazing

Informative but the automated voice so annoying

nobody has up to day explained the 'vector' -time - BTW - this AI voice is annoying

Laser technicians do it with mirrors ! I saw my first laser at around age 13 and knew immediately that some day I would work on them. A lifetime later, I have worked on many types, including a laser cutter which sliced through steel plate like a hot knife through butter, as well as several generations of Large-Scale Fusion Lasers. Wishes can come true if you make them your mission in life and have enough faith in yourself. Now, if you will excuse me, I will try to catch up on the sleep which I didn't get in laser school !

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

I noticed that the drawings are not consistent. My question is the following: when the electron is in the meta stable (radiationless transition) and it gets stimulated by a photon will it give off 2 photons or 1 (first u show 2 but then in the video only one is produced)? Wouldn't it just be one since its only making one transition (metastable to ground)?

absolutely amazing

Everytime I think about the origin and the end of the time and space, I feel deep sadness of no idea that where people or the whole universe will go. Maybe it's totally different dimensions for our time and space. Maybe after we all don't exist in this world we still meet in another world😢

Incredible video❤

Wow, excellent explanation. Both scientifically accurate and simple to understand.

Question is Was laser made using this theory or this theory was made to explain the experimental success of producing laser?

This video is amazing as your other videos. Your understanding of science is unprecedented. Excellent channel so much unknown, should have much more subs. Thank you for videos hope we get more often.

Awesome 👌

Many skip population inversion/metastable state. Nice video.

it's amazing. We viewers are so happy and excited while watching the video. The content of the video is like a photon and it makes me to rejoice. thanks you team for this wonderful content. love from India - Tamilnadu.

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

i always wanted to know about it but always procrastinartes since it has a lot math involved. Thanks A LOT!

Very good explanation

Awesome

Anyone noticed the computer generated speech of the narator?

Thanks so much, sir I am student in India. Sir please make video's on laser topic and electromagnetic Quantum mechanics ,,,

I keep hearing "the gay medium". And I love it.

this video seriously saved my life, thank you!

are nanowire lasers works same priciple and how is working pump source, i mean i read it could be electrical field or light, i understand the electrical field but when we say light how?

computeer voice, at least this versoin is horrible ! it might be fun to head from distance, but for learning and important contant which needs to be focused, haveing a vibrant computer voice, ESPECIALLY when casually accelerate at the end of some words, it is gorrible ! yea, i know about voice change and having high and low in presentations, but it is not the case in here ! I've removed my like to to this ....

Awesome video :D I have no words to praise how well you've explained. Simply explained, with very simple examples to which anybody can relate. We need to support such high-quality content. thank you so much for this awesome educational content.

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

Fantastic

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)