Episode 60
#Raman
#Laser
In this episode, let's build a Raman Laser!
First I talk about some of the background of light scattering, Rayleigh Scattering, Raman Scattering discovered by C.V Raman, then the discovery of the Raman Laser by Gisela Eckhardt.
I cover the physical setup from an engineering standpoint.
An old Nd:YAG Tattoo Laser I refurbished is used to pump a cuvette filled with a Raman Liquid.
Although in the early experiments the megawatt Laser energy destroyed the cuvette I was using, I built a Raman cell from scratch, with replaceable windows.
Do I manage to shift 532nm green light to 629nm Red?
References:
Physics openlab: [ Ссылка ]
Raman Molecular bond stretching simulation: [ Ссылка ]
Stimulated Raman Scattering Video (Your Favourite TA): [ Ссылка ]
SRS: [ Ссылка ]
Eckhardt: [ Ссылка ]
Crystalline Raman Lasers: [ Ссылка ]
"Simple" Raman Laser! [ Ссылка ]
Raman Shift Calculator: [ Ссылка ]
Check out my other videos: [ Ссылка ]
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0:00 Intro
0:15 Light Scattering
0:47 Rayleigh Scattering
1:22 Raman Scattering
2:26 Stimulated Raman Scattering SRS
3:14 Raman Laser development
4:19 Commercial Raman Lasers
5:14 Raman Laser Explanation
6:39 Intitial Experiment; Laser ate itself!
7:16 Raman Laser build
7:48 Raman Laser setup
9:41 First Light!
10:44 Measuring the wavelength
11:39 Conclusions and future work
