Beautiful Explanation Sir.... Your animations are self explanatory... Your Teaching is boon to students who couldn't get admissions in renowned institutions....But ur channel provides Quality Education.. Very Impressive teaching sir👍
Excellent!! Sir I am studying CO2 laser , I want to calculate : 1) Cavity dimensions with gas volume and its input power requirement 2) Its output power 3) Gas pressure Hope you help me, I shall be very thankful to you
Sorry, but I am teaching at the basic level.. so i have limitations.. your requirement seem to be in the research area.. If I come across any person doing work in CO2 laser, definitely I will suggest you..
In stimulated emission the photon is not absorbed.. It just pushes the atom in higher energy state and moves ahead.. so it is not lost.. in addition one more photon is obtained as the atom falls from higher energy state to lower energy state..
Hello Sir, I am from Noida. Sir I am in Btech(2nd sem) sir I watched your videos for interference and lasers and fiber optics in my 1st sem exams and got 9/10. Sir for 2nd sem my course is (Kinetic motion of gases, thermodynamics) and (crystallography and semiconductors) Sir you have uploaded videos of 2nd unit (crystals and semiconductors) but not of 1st unit. I want videos series of kinetic motion of gases and thermodynamics(physics) sir please my exams are in april end or may start 2023. I need the videos series before that.. please sir please upload it fast. Thankyou very much sir for your help in 1st sem.
Sir, do you have a series on electromagnetism that covers The Lorentz force law, Biot-Savart law, magnetic Vector potential, boundary conditions, multipole expansion of vector potential, magnetization, magnetic materials, torque and forces on magnetic dipoles, field of a magnetized object, the auxiliary field H, boundary conditions, linear and non-linear media Electrodynamics: Electromotive force, electro-magnetic induction, Application of Maxwell's equations, boundary conditions
Sir thoda too voice increase karlo aisa chuhe ki tarah bolte ho ki kuch sunai hi nhi deta 😂😂😂 isko negative review mat lena ise apne aap ko improve karo jor se bolo
Very good explanation sir. But i have a doubt at 23:33 isnt it better if the stimulated emission is instantaneous instead of occuring after some time lag?
Spontaneous emission occurs after the life time of the atom in excited state is over. And this life time is usually is very low of the order of 10 ns. In case of stimulated emission, it may occur earlier. but for it to occur earlier, external agent is required. More life time is needed for considerable stimulated emission due to which light amplification can be achieved.
![Introduction to Lasers [Year-1]](/img/n.gif)
watching it just day before my end semester exam, very helpful👍🏼
All the Best 👍
Thank you sir
Very easy to understand and helpful for last moment studies.
thank you and love you sir you are literally saving me in my end term exam love from jammu (nit srinagar cse)
Most welcome.. keep watching and share with your friends..
bhaijan srinagar main kaise halat hain abhi....sab plan ke hisab se chal raha na....koi dikhat aaye tou abdul ko yaad zaroor kijityega
Sir it's really interesting with many animations and gifs. Thank you sir
You are most welcome
Beautiful Explanation Sir....
Your animations are self explanatory...
Your Teaching is boon to students who couldn't get admissions in renowned institutions....But ur channel provides Quality Education..
Very Impressive teaching sir👍
It's my pleasure.. keep watching and share with your friends..
is this college under deemed university
No.. not yet..
Keep providing more structured content for Engineer ing@@EngineeringPhysicsbySanjiv
Explanation I did not understand on my college nit trichy but your teaching style so amazing
Thank you.. please share with your friends also..
Excellent 👌 explanation sir.
Very helpful mate thank you
Nice explanation sir Its easy to understand......
Glad to hear that.. keep watching.. share with your friends also..
Your teaching is really good and great sir
Thank You
Thank you🙏
very important video. thank you. skir
Most welcome..
Thank you so much sir
This would be helpful for us especially online
Most welcome.. glad to know you find it helpful.. please share with friends also..
@@EngineeringPhysicsbySanjiv Ive shared it sir..☺️
Thank you so much sir i am from karnataka
Great.. all the best
superb explanation sir
easily understandable and
it is easy to remember with animations
thank you so much sir
Thank you for the compliment 🙏
Thank you sir for making such video... Very useful video ❤🙏
Most welcome.. Best luck to you.. please share it with your friends also..
love the lecture thankyou sir
Most welcome.. please share with friends as well..
Sir you are awesome .. what a great explanation
Thank you for the complement.. please share with your friends also..
I could clearly understand
Thank you Sir☺
Most welcome.. please share with your friends also..
Excellent explanation...thank you, sir
You are welcome..
Excellent!!
Sir I am studying CO2 laser , I want to calculate :
1) Cavity dimensions with gas volume and its input power requirement
2) Its output power
3) Gas pressure
Hope you help me, I shall be very thankful to you
Sorry, but I am teaching at the basic level.. so i have limitations.. your requirement seem to be in the research area.. If I come across any person doing work in CO2 laser, definitely I will suggest you..
Thank you sir😊
You are welcome..
Sir please make a video series on kinetic motion of gases and thermodynamics (physics) for engineering 1st year students
Awesome session
Thank you🙏
Thank you so much sir
This was so helpful
You are welcome
Nice explanation sir 👍
Thank you sir
Welcome.. please share with friends also..
Thank you so much sir 😊
Most welcome.. share with your friends also..
Sir, Lucid explanation...
Thank you🙏
Very nice sir
Thank you and best luck to you👍
Sir if given Photon is absorbed by atom then how there are two Photon emitting????🤔🤔
In stimulated emission the photon is not absorbed.. It just pushes the atom in higher energy state and moves ahead.. so it is not lost.. in addition one more photon is obtained as the atom falls from higher energy state to lower energy state..
@@EngineeringPhysicsbySanjiv thank you sir 🙏💕
great video sir
Thank you..
Sir what is the actual meaning of light amplification by stimulated emission of radiation???
Meaning of light amplification is number of photons in light beam increase by large number. So intensity of light is very high.
Awesome videos!
Thank you
Hello Sir, I am from Noida. Sir I am in Btech(2nd sem) sir I watched your videos for interference and lasers and fiber optics in my 1st sem exams and got 9/10. Sir for 2nd sem my course is (Kinetic motion of gases, thermodynamics) and (crystallography and semiconductors)
Sir you have uploaded videos of 2nd unit (crystals and semiconductors) but not of 1st unit.
I want videos series of kinetic motion of gases and thermodynamics(physics) sir please my exams are in april end or may start 2023. I need the videos series before that.. please sir please upload it fast. Thankyou very much sir for your help in 1st sem.
Thanks for watching.. but new videos are bit difficult now.. i am currently working on a new project..
Sir, do you have a series on electromagnetism that covers
The Lorentz force law, Biot-Savart law, magnetic Vector potential,
boundary conditions, multipole expansion of vector potential,
magnetization, magnetic materials, torque and forces on magnetic
dipoles, field of a magnetized object, the auxiliary field H, boundary
conditions, linear and non-linear media
Electrodynamics: Electromotive force, electro-magnetic induction,
Application of Maxwell's equations, boundary conditions
Gud explanation
Thank you so much sir. Deel❤️💕💕se thanyawad sir ❤❤❤❤❤🎉🎉🎉🎉🎉🎉🥰🥰🥰🥰🥰😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊
sir I am a teacher in a government school..........what app / how do you edit your videos........btw superb explanation........
It is simple power point presentation with narration recorded
can we make any energy level as a metastable state
Hello sir plz add more videos related to laser.
Can we it as pdf notes
Notes are available in description. If you do not get, let me know..
Classy😌
Thanks
Respected Sir, I've a doubt:
Why we are considering atoms in energy levels rather than electrons?
barabar
❤
Thanks
11:33
3:30
Lnctian
🙏
Explanation is not clear......
Sir thoda too voice increase karlo aisa chuhe ki tarah bolte ho ki kuch sunai hi nhi deta 😂😂😂 isko negative review mat lena ise apne aap ko improve karo jor se bolo
Very good explanation sir. But i have a doubt at 23:33 isnt it better if the stimulated emission is instantaneous instead of occuring after some time lag?
Spontaneous emission occurs after the life time of the atom in excited state is over. And this life time is usually is very low of the order of 10 ns. In case of stimulated emission, it may occur earlier. but for it to occur earlier, external agent is required. More life time is needed for considerable stimulated emission due to which light amplification can be achieved.
@@EngineeringPhysicsbySanjiv Understood sir.Thank you
👍