This guy is very good at presenting information! He speaks in a way that carries the lecture forward and doesn't just drone on. Really good stuff!
@maxmustermann27074 жыл бұрын
You are a good teacher.
@KnowWithMalvika3 жыл бұрын
This is absolutely the best !!!
@bivekbista65922 жыл бұрын
Really good. Thank you.
@NicholasWingComposer4 жыл бұрын
Excellent Raman presentation. Does fluorescence require a collision with a specific region of a molecule? What is the specific light matter interaction which induces a Raman backscattered photon, which exhaustively explains why only one in a million photons are Raman shifted? In other words, does a Raman scattered photon directly collide with a bond or a specific region of a molecule in order to be Raman shifted? Is the incident angle of the photon also a determining factor? Can a photon shift in frequency due to passing through an electromagnetic field without colliding with a molecule? (Unrelated, but analogically, did the photons observed in the solar eclipse experiments to prove Einstein's Theory of Relativity shift in frequency in addition to trajectory, without a direct light matter collision? If so, could any shifts in frequency be measured by analyzing the photographic plates or film assuming that they have not decayed?) If the vibrational mode is persistent what is the specific light matter interaction which explains the increase in the number of Raman shifted photons during a SERS analysis? Does SERS enhance or expand the electromagnetic field of a molecule? Does the entire molecule resonate at the frequency of the vibrational mode of specific regions of the molecule? Does Dr. Michael Bradley's dissertation study of argon atom collisions require additional laws of physics to explain the Raman Scattering Effect, when there are no single molecule bond vibrational frequencies involved?
@arjunbarwal15022 жыл бұрын
For raman scattering to our... The incoming photon should change the polarizabality of the molecule. If their is change in the polarizabality, then only there will be scattering with different wavelength/frequency called Raman scattering. If there is no change in polarizabality, then there will always be Rayeligh scattering having same frequency as the incoming laser light photon.
@shwetakeshri4875 жыл бұрын
could you please tell the name of the person who is explaining in the video?
@akbaba_omooluwa14 жыл бұрын
👌👌👌 Exquisite.
@yatint96656 жыл бұрын
Awesome Video
@birk_lab48054 жыл бұрын
Damn! That guy is on fire :-) love it!
@MolecularSpectroscopy7 жыл бұрын
Visit thermofisher.com/learnraman for more information.