Basics and principle of Raman Spectroscopy | Learn under 5 min | Stokes and Anti-Stokes | AI 09
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- čas přidán 9. 02. 2018
- Analytical Instrumentation - Raman Spectroscopy
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One may have heard about Raman effect quite a lot of times. In this video we are going to discuss the concept of Raman scattering first. But we also need to understand Rayleigh scattering first. Once the phenomenon of Raman scattering is explained, this video will discuss why and how the Raman effect takes place and how Raman scattering is generated. The viewer will also learn about the stokes lines and anti-stokes lines and how Raman scattering is a two photon process. Finally, the use of Raman effect in spectroscopy is discussed. This will help to perform qualitative and quantitative analysis on the sample under test.
The Raman scattering takes place due to inelastic collision between photons and electrons. The difference in energy between incident photon and emitted photon generates Raman lines. Depending on the emitted frequency, the lines generated are called as Stokes lines if their frequency is less than incident frequency of photons, if the frequency of emitted photons is greater than incident frequency, it is called as Anti-stokes lines. From the Raman spectra, one can determine the molecule in the sample by studying the stokes and anti-stokes lines. Similarly, from their intensity one can calculate the concentration of a particular sample.
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Hi! could you tell me which program did you use to make the draws? Many thanks in advance and sorry to bluntly ask you that.
This is so much simpler and easier to understand than the 8-page instruction from my class. Thanks a ton!
Word
Nothing more than "Thank you". This is a very simple straight-to-the-point explanantion
Thanks Olumide Oni :) We are glad you liked the video.
Fantastic video. So concise and so clear. Explained better than most PhD professors could!
im stressing out of my head doing my last minute chemistry and this comic sans honestly calmed me down so much
Glad we could help :)
This was so beautifully explained!
I learnt all this in my 1st year of Engineering and forgot about it since it was not used in my work. I had to know the basics again today and other videos I went through left me even more confused, until I stumbled upon yours. Saved me a ton of time I'd have spent going back to reference books.
Thanks a lot man! Musch appreciated
Glad we could help you Prabhav Shukla. Thanks a lot for your positive comments. Such feedback from our viewers motivates us to create and publish such more videos :)
You are a good teacher! First time a lay man like me can understand Raman Spectrometry! Thanks.
I can't imagine anyone else teaching in such a Simplified Way...👌 Thanks 🙏🙏🙏 sir
Thanks - using RAMAN for my PHD and this was a great overview
me too :)
So simple and didactic, just brilliant.
Excellent video on the subject line with a very clear explanation and interesting schematics. Thank you and Keep doing such kind of useful tutorials.
Straightforward and easy to understand. Thank you!
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Man you explained so well than my Copycat Book and My teacher hats off to you 😊
Watching this as a revision for my test tomorow and i can confidently say that ive never had this topic explained to me so well before
Thank you. Learning Raman for my undergrad project and this video was very useful
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This was incredibly helpful. Beautiful Explanation. Thank you so much
Wonderful video! Thank you for your explanation
Now it is clear why and how raman effect it is ??
Thank You ❣️
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Suddenly I like instrumental analysis, thanks bro 👍⚘
it was really good you should cover more of such topics especially of laser and spectroscopy.
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Thanks🎉🎉
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Thanks for your support and feedback :) We are glad you liked the video.
Thank you very much! Greetings from Serbia.
That helps so much . Insane
Thnq for this short video. plz keep uploading such videos, this saves time and is more useful than going through the texts.
Thanks Amiya R Mahapatra :) We will surely keep uploading such videos
Thank you very much for such good explanation . Great
Glad you liked our video Samira Mammadova.
omg guys...this is the most clear explanation I've seen of the raman effect. You guys are really out here saying us students at the last minute.
Cheers. Please keep making more videos :D
Thanks Ashima Khanna. We are glad you liked our videos :)
Ashima Kh
Very nice and clear. Awesome video!!!!!!!!
I'm an analytical chemist and this is the best Raman spectroscopy explanation I've ever seen! Well done!
Excellent videos Practical Ninjas!
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Thanks Charu Malik for such positive words. Glad you liked the video.
Enna ga
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Très bien expliqué merci ❤
Nice explanation with understandable language
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It is understandable..
I have been studying this topic in physics and I could understand it but you made it so simpler
We are glad you liked the explanation :)
Could you please share your material if you still have it?
Great video thanks
Muchas gracias! Saludos desde Chile
best video. Thank you for explaining it so well.
Thank you Sparsh Agarwal :)
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We are glad you liked the video :)
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We are glad you liked the video :)
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Happy National Science Day! Raman Scatt. Effect, Monochromatic light,Rayleigh/ Stokes Line, Spectrum
czcams.com/video/4CaBZsvcSPo/video.html
Big thanks
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its not about electrons. The molecules have different vibrational levels. Raman scattering doesnt have enough energy to make electronic configuration shift. It just changes vibrational state of molecule. I guess.
Presentation is very nice
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We are glad we could help SoloTape