- #1
Jalo
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I'm not sure I understand what information we can get from Photoluminescence Excitation (PLE) that we don't get from regular PL.
Let's imagine we have a sample with emissions between 700nm and 850nm. If I'm not mistaken in a typical PL experiment you'd just use a laser source with a wavelength lower than 700nm in order to observe all the transitions from the material. Would there be a difference between the obtained spectra if I used a 300nm and 600nm laser source wavelength?
Also, on a typical PLE for this same material which wavelengths would be of interest? Would I want to vary the laser source's wavelength between 850nm and 700nm? What information would I be able to extract from the obtained spectra that I wouldn't in typical PL?
Cheers
Let's imagine we have a sample with emissions between 700nm and 850nm. If I'm not mistaken in a typical PL experiment you'd just use a laser source with a wavelength lower than 700nm in order to observe all the transitions from the material. Would there be a difference between the obtained spectra if I used a 300nm and 600nm laser source wavelength?
Also, on a typical PLE for this same material which wavelengths would be of interest? Would I want to vary the laser source's wavelength between 850nm and 700nm? What information would I be able to extract from the obtained spectra that I wouldn't in typical PL?
Cheers