0:00--->LASER Characteristics. 17:25--->Einstein's co-efficient. 23:03--->Population Inversion. 25:03--->Schemes for Population Inversion. 34:29--->Properties of LASER. 37:48---> He-Ne LASER. THANK YOU 💖
I am a first year student and watching this sir I remind me my best physics teacher on RUclips Mohit Goenka sir of eduniti Great video sir Thank you so much!!
Not much interest in comment section generally , but I'm taking this tym to write something here ! Being just a NEET aspirant, the channel came through a atomic structure quantum topic, although sir's way is very high , obv as it's for engineering... But by that video i came to this vdo , and loved so much the way of teaching , literally ❤ ....
wow, keep this performance in the future. I am glad that my videos are helpful to you. Please share the video and channel with your friends to support me. 🙂
Engineering chapters of what subject? For physics I am doing it. For old sessions one shot or revision videos are on channel. Please specify the topics, use mail physwow@gmail.com for detail plan. Thanks for your interest 🙂
@@RGSClassesEssential Unit-: Band theory of solids Basic idea of free electron theory of metals, expression of conductivity of a metal. Formation of energy bands in Solids, Fermi energy and Fermi level. Classification of solids on the basis of energy band diagram: Conductors, Semiconductors and Insulators, concept of Fermi energy.
@@RGSClassesEssential i am nit Hamirpur student computer science. Currently i am giving exam of first semester. So sorry sir i don't know that what subject will tought. First i confirms my teachers after exam then i will tell.❤️ Your way of teching is extraordinary sir. Thank you very much🙏🙏🙏🙏🙏🙏
thanku sir for this lecture...@18:26 let n1 be the number of particle in ground state and n2 number of paricle in exited state ...mujhe lgta ye statement adhuri hai .. mere hisab see aaisa likha jana chahiye tha ki n1 number of particle ne absorption kraa.. and n2 number of particle ne ..spontaneous emission kra..jiske response me aur dusre n2 number of particle ne bhi stimulated emission kra.. equation dekhkr aaisa hi pratit hota hai. sir kya Maine shi direction me socha hai??
Aap stimulated emissions ke liye jo radiation interaction responsible hota hai uska calculation bhi include kara cahte hai, possibly spontaneous process ke through. But this is not always possible, laser cavity ka rdiation bhi stimulation kara sakta hai so do baar n2 sochna ek specific situation ho sakta hai. But in actual paper einstein himself is bare me kuch nahi kahte. Ye maan ker ki radiation preexist hai stimulated emission define karte hai. Further quantum theory of radiation interaction with matter, transition matrix is process ko bahut acche se define karta hai by considering all such possibilities.
i have an app and different courses but not for Btech,full courses are for BSc students. You may download the app RGS Classes from play store to see some detail, where i am providing the PDF notes for btech physics
If want to start learning group theory of discrete mathematics see lectures ruclips.net/video/KOUUCr8da2s/видео.htmlsi=a6HpEjLvmWK767Uw
0:00--->LASER Characteristics.
17:25--->Einstein's co-efficient.
23:03--->Population Inversion.
25:03--->Schemes for Population Inversion.
34:29--->Properties of LASER.
37:48---> He-Ne LASER.
THANK YOU 💖
Thanks
@@RGSClassesEssential you're welcome 🤗
From attending Sir's lecture in class to seeing this video on RUclips. ❤❤❤
I am a first year student and watching this sir I remind me my best physics teacher on RUclips Mohit Goenka sir of eduniti Great video sir Thank you so much!!
I AM ALSO BIG FAN OF MOHIT JI HE IS FANTASTIC.
@@RGSClassesEssential yes sir we like both of you
★ 0:00>LASER Characteristics.
★ 17:25->Einstein's co-efficient.
★ 23:03 --->Population Inversion.
★25:03->Schemes for Population Inversion.
★ 34:29 -->Properties of LASER.
★ 37:48→ He-Ne LASER.📝
Thanks Saurabh
Spr teaching sir 🙏♥️
@@praveenmagi2851 welcome praveen
Sir notes bhejona
Which Topics Are Not Included Koi Batayega??
Best video for Laser. Thank You sir Because of this I was able to get good grades on my Laser Test. Thank You once again sir.
Wow congrats🎉 this is very satisfactory comment.
BEST VIDEO
❤️
Thank you so much Sir Huge Respect for you
Welcome Devanshu glad to know that it is helpful to you.
This is not revision video . Mujhe class mae ye unit samjh ni arhi thi yaha 40 min all doubt clear
Wow I am glad that it is helpful to you. Feel free to suggest me what topics or content i should consider for future videos.
Very amazing way of teaching ❤❤❤❤
Thanks a lot 😊
Not much interest in comment section generally , but I'm taking this tym to write something here !
Being just a NEET aspirant, the channel came through a atomic structure quantum topic, although sir's way is very high , obv as it's for engineering... But by that video i came to this vdo , and loved so much the way of teaching , literally ❤ ....
best of luck for your future be a good doctor, world need this.
I given mid term in lpu with help of ur one shot video 80% i marked question.nice lecture
wow, keep this performance in the future. I am glad that my videos are helpful to you. Please share the video and channel with your friends to support me. 🙂
@@RGSClassesEssential 👍
Lol lpu 1st year me marks nhi katega 😂
@@BLADE_PLASMA 😂😂😂
@@BLADE_PLASMA unsaid rules🙂🙂
Thank You So Much Sir...❤❤❤ Full Respect 🫡🫡🫡
most welcome dear
this video helps a lot in my end-sem exam ........Thanks a lot sir 💞💖💖💖
My pleasure, dear😌
Thanks a lot sir ! I’m in first year btech and it’s really helpful to me 🫶🏻👍🏻
wow ! keep learning. your feedback will improve the content so feel fee to comment me. good luck.
Thank you so much sir, for this video.What an explanation!
According to me it's great.
Thanks
Thank u sir 4 saving my exam... ❤
Most welcome dear,happy to know that video was helpful to you.
It's my exam passing topic
Thank you sir for this video ☺️
Most welcome
@@RGSClassesEssential sir can you suggest some topic for achive passing marks only , I need only 20 Marks for passing my 1st semester exam
Quantum, emt and superconductor only 2.5 units gave you passing marks ( even more than that)
@@RGSClassesEssential thank you sir 💗💞
Excellent sirji 🙏. Please make some more regarding Enginnering physics
on this channel I have already uploaded many videos on engr. physics
This is very useful 👍👍
Glad it was helpful!
Thanks for covering all the topics
most welcome
Thanks sir 👍
Welcome
thanks sir for this quick revision .
Welcome
Thank you sir ji , revision videos ko ek playlist bnado please sir
Done please check. Keep updating me what you all required, i will try to include it. Thanks
Thanks
Welcome
Class m smjh nhi paye the sir but aap itne ache se clarify kiye sab aa gya smjh m thank you so much sir ☺️
Welcome 😊
Completed this chapter the night before exam...all thanks to sir
Sir IIT me hu..kal exm h😃😃aap gzb pura laser 40 min me padha dia❤️😍
Glad to know that it is helpful. Good luck
🙏 iitian bhaiya ko
Loved this session sir ❤️ thnx alot!
Always welcome
very good explanation sir
absolutely loved it
Thanks ajay
Which book you would recommend for understanding mathematical part of population inversion?
More detail is given in quantum electronics book say ghataks book a photonics books also included the detail discussion.
Sir baaki chapters ke bhi one shot krwaye hai kya aapne ? Agar karaya hai to kya aap link provide kr skte ho please 🙏🏻
Thank you so much sir for the informative vedio it helped me in my exams a lot
Glad to know that best of luck
Sir please aap VIT ke liye bhi videos banaiye .
Provide me syllabus at physwow@gmail.com
Please also make videos on 🥺❤️
*Diffraction*
*Physics of sensors*
*Nanotechnology*
*Electrodynamics*
Will definitely try
@@RGSClassesEssential where is the video sir
Sir plz make videos from all the topics covering Makaut curriculum, there are very few teachers on RUclips for us college students
Thank you so much sir the video is very helpful
Glad to know that it's useful.
A huge thank you sir! ✨
🙂
Very good explanation sir in very short time I understand all topics very easily
Welcome dear
Very very thankyou sir ❤
Most welcome
Thank you so much sir ab kal ke exam me ho jaega laser😊
most welcome
Sir pls make videos on one shot videos of engineering chapters please sir no one is doing it in youtube (vtu- 2022 scheme too)
Engineering chapters of what subject? For physics I am doing it. For old sessions one shot or revision videos are on channel. Please specify the topics, use mail physwow@gmail.com for detail plan. Thanks for your interest 🙂
@@RGSClassesEssential ofcourse for physics sir 😙
thanks for ur response sir
From Bangladesh, thanks a lot sir ❤❤
Most welcome👍
Sir please engg physics ke important questions ka video bana do insem hai end of feb mai please sir 🙏🏻
Thank you soo muchh sirrr mere college ke teacher ita sahi se smjhadete toh aaj mai top kr rha hota mere college mai😂
🙂🙂
Awesome 👍
thanks
Revision ❌
Full lecture ✅
❤
Great video... Thanks sir
Thanks
Great explanation sir🔥🔥🔥🔥
Thank s
sir you are loking like Ankit awashthi sir.
🙂 Hope unka jitne knowledgeable ho jaye, he is toooooo..good in his field.
Thanks sir 🙏
A lot of thanks sir
Most welcome
Sir please make revision video on band theory of solids
Ok will try
Send me syllabus
@@RGSClassesEssential Unit-: Band theory of solids
Basic idea of free electron theory of metals, expression of conductivity of a metal.
Formation of energy bands in Solids, Fermi energy and Fermi level.
Classification of solids on the basis of energy band diagram: Conductors, Semiconductors and
Insulators, concept of Fermi energy.
Iss class ki pdf ka link kaha hai?
Love you sir
thanks for watching and appreciating.
Thank you so much sir. 🙏🏻🙏🏻
Most welcome
Sir Notes bhi share kardiya karo please
Telegram banate hai to hi ho payega
Amazing Teacher ❤
❤
Is it helpful for chandigarh university semester exams
Provide me your syllabus at physwow@gmail.com
thank you soo much sir huge respect for you
Most welcome😊
Thanks sir
Welcome
This lectures is for mumbai university or not❤
its helpful
Thanks sir tomorrow my physics paper
best of luck
Thankyou 👍
You’re welcome 😊
Please make lecture related to btech second semester
Which subject
@@RGSClassesEssential i am nit Hamirpur student computer science. Currently i am giving exam of first semester. So sorry sir i don't know that what subject will tought. First i confirms my teachers after exam then i will tell.❤️
Your way of teching is extraordinary sir.
Thank you very much🙏🙏🙏🙏🙏🙏
@@explorerashish6279 ok
thanku sir for this lecture...@18:26 let n1 be the number of particle in ground state and n2 number of paricle in exited state ...mujhe lgta ye statement adhuri hai .. mere hisab see aaisa likha jana chahiye tha ki n1 number of particle ne absorption kraa.. and n2 number of particle ne ..spontaneous emission kra..jiske response me aur dusre n2 number of particle ne bhi stimulated emission kra.. equation dekhkr aaisa hi pratit hota hai. sir kya Maine shi direction me socha hai??
Aap stimulated emissions ke liye jo radiation interaction responsible hota hai uska calculation bhi include kara cahte hai, possibly spontaneous process ke through. But this is not always possible, laser cavity ka rdiation bhi stimulation kara sakta hai so do baar n2 sochna ek specific situation ho sakta hai. But in actual paper einstein himself is bare me kuch nahi kahte. Ye maan ker ki radiation preexist hai stimulated emission define karte hai. Further quantum theory of radiation interaction with matter, transition matrix is process ko bahut acche se define karta hai by considering all such possibilities.
@@RGSClassesEssential ohk sir... thank you for reply🙏
Awesome teaching sir ❤️
Oh thanks
@@RGSClassesEssential Please also make videos on 🥺❤️
*Diffraction*
*Physics of sensors*
*Nanotechnology*
*Electrodynamics*
Thanks for such an amazing lecture ❤
Most welcome!
Sir rona aa gaya 😭 literally apne mera kal ka exam bacha liye thank you 🙏
@@svgstark3742 best of luck
@@RGSClassesEssential thank you sir , love you from NIT surat ❤️🙏
Love you
thank you sir ji for making such a beautiful lecture...take love ❤
❤
u save my day sir.
Ur comment make my day
sir plz provide notes
🎉🎉🎉🎉🎉🎉 for u sir
Thanks 🙂🙂
Exam se ek din pahle padha or exam nipta diya 40 min me 😂😂😂
Wah🙂
Waah bhai, same name 😂
@@ashutoshjha6981 are Bhai 😂😂
@@Ashus-Insights Bhai ek help kar de na, agar baaki chapters ka bhi one shot krwaya hai sir ne to Zara link share kr na yaha copy paste karke
Chandigarh University walo attendance lagao
Which Topics Are Not Included Koi Batayega??
Sir, notes nahi mil sakta hai?
Sir ue mumbai university ke bachho ke liye hai kya please reply sir?!!
Most topics are common so you may see
Very precise video.
Helped a lot.
👍👍👍
Glad to know that it is helpful
Thankyou sir for your laser video ❤❤
Welcome
Sir mbm university jodhpur ke liye kya ye shi rhega?
Sir aapka koi course hain kya physics ke liye first year
i have an app and different courses but not for Btech,full courses are for BSc students. You may download the app RGS Classes from play store to see some detail, where i am providing the PDF notes for btech physics
Sir aap shm par bhi videos lao pls
Which university??
Sir ctae udaipur ke syllbus ke according h same
I just downloaded your syllabus and observe that most of the course will be covered in the lectures available on this channel. Best of luck
Sir mu wale bhi yeh refer kar sakte haina??
Ram Ram ji 🙏❤️
Jai Sia Ram
Sharada university wale raise hand ✋
exam ka agle din kon kon dekh rahe ho like karo
Pichle*
Mai
Yes bro
Goated lecture
Thankx
Iski ek hi video h ky ??
Ek video me revision kiya hai
Sir can you plzz provide us the notes of this topic...?
Sure I will try, let me search
@@RGSClassesEssential yes sir please...!
SIR PLEASE PROVIDE THESE NOTES
It is an old video and i don't have these notes now sorry
Bhai samj nahi aya 22:04 sai
Wah
🙂kya comment hai, wah
@@RGSClassesEssential nahi sir ji aapka padhya hua smaj aaya toh wah
Notes
ABES walo attendance please😀😀😀😀
Thankyou sir😊
Welcome ,hope I get a subscriber😊
nc
Thank you sir😊
28/04/2024
Most welcome
Mai to exam se 25 minit phle dekha rha hu 😅😂
kitne tejashvi log hai hamare yaha
@@RGSClassesEssential😂
Yeh rtu syllabus k hisab se h ky sir??
Abhi to maine focus AKTU ko kiya hai,
Toh sir ise rtu student dekhe h toh cover ho jayga ky yeh ch ...sirf yhi revision video ko
@@agratagupta8712 i think i have covered standard syllabus so ho jana chahiye