Raman Definition and 110 Threads

I read in a journal article that in raman spectroscopy "it is well known that signal yield increases with shorter wavelength". Can anyone please explain why? I would've thought longer wavelengths = shorter frequencies = higher susceptibilities?

What's the best way to hold a sample of micron-sized polystyrene beads for raman microscopy?

What's the best way to hold a sample of micron-sized polystyrene beads for raman microscopy?

A raman scattered photon occurs when you drive the bonds of a molecule causing oscillations between the bonded molecules right? What exactly emits the photon? If its the electrons, then shouldn't multiple photons be emitted with the same wavelength?

Homework Statement For (NO)2+, experiments show 1 Raman active vibrational mode around 1450/cm; 2 strong IR active modes at 2400/cm and 550/cm; and 1 weak IR active mode around 3600/cm. What does that say about its geometry? The Attempt at a Solution Never mind, I think I got it :)

Hi guys Can any of you give me some info on spin-flip raman spectroscopy. I've been studying the literature on it and found its used to study diluted magnetic semiconductors (but as been used in quantum wells). Its used in these system because the effect is much more pronounced due to the...

A laser in visible is used in Raman spectroscopy and the resultant spectrum is in IR and Microwave region(which means molecular vibrations and rotations are excited), what type of interaction is this that induces these levels? ( I cannot think more than..."To be Raman active molecules should...

Raman spectroscopy is "Single molecule identification" Hi , I heard that the speciality of Raman spectroscopy is "Single molecule identification", it'd be really great if somebody can tell me HOW! because its surely going to be a question in my exam! Thanks in advance.

Hi all, i am studying the physics of Raman Spectra. Was able to understand the origin of Vibrational Raman Spectra... which was an effect due to the change of polarizability with internuclear distance due to molecular vibration. But, i still yet to figure out why rotation of molecules can...

raman spectroscopy! Hi, can anybody please tell what is the speciality of Raman spectroscopy and how it differs from other techniques?? does it have any uniqueness? more info is welcomed! thanks in advance.