spectral line profiles

22/10/2009

Laser Spectroscopy Podcast

0:00

1:15:28

We look at how the natural lifetime of an energy level produces a Lorentzian line profile and how the natural linewidth can be broadened by Doppler broadening, pressure broadening, transit time broadening and saturation broadening.

Mais episódios de "Laser Spectroscopy Podcast"

Laser frequency stabilization
01/12/2009
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We look at sources of laser frequency noise and discuss feedback techniques using a reference cavity or a molecular transition to stabilize the laser frequency.
Ultrafast Spectroscopy
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We look at pump probe methods using ultrafast pulses for high temporal resolution experiments.
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Short Pulse Generation
17/11/2009
1:16:59
We look at transient effects in laser gain material, -switching and mode locking as methods to get short pulses.
Raman Scattering
10/11/2009
1:15:09
Podcsat from 2008 of lecture on Raman spectroscopy. This is in place of the 11/9 lecture given about Raman spectroscopy, for which the audio didn't record properly.
Stimulated Raman Spectroscopy
10/11/2009
1:15:11
Podcsat from 2008 of lecture on stimulated Raman scattering. This content was not covered in class this semester. This is for your interest only and will not be covered on exams.
Nonlinear Spectroscopy
05/11/2009
1:17:12
We look at how saturation causes hole burning in a spectral line, and measurement techniques such as lamb-dip spectroscopy and intermodulated fluorescence that can take advantage of this for doppler-free measurements.
Emission Spectroscopy
29/10/2009
1:13:59
We look at basic methods of emission spectroscopy including laser induced fluorescence, resonant enhanced multi-photon emission (REMPI), intermodulated fluorescence and stimulated emission pumping.
Absorption Spectroscopy
27/10/2009
1:17:07
WE look at basic techniques of absorption spectroscopy including direct detection, frequency modulation, intracavity absorption and cavity ringdown spectroscopy.
spectral line profiles
22/10/2009
1:15:28
We look at how the natural lifetime of an energy level produces a Lorentzian line profile and how the natural linewidth can be broadened by Doppler broadening, pressure broadening, transit time broadening and saturation broadening.
Interferometers
13/10/2009
1:15:40
We look at how interferometers can be used to measure wanelength.

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spectral line profiles

Laser Spectroscopy Podcast

Mais episódios de "Laser Spectroscopy Podcast"

Laser frequency stabilization

Ultrafast Spectroscopy

Short Pulse Generation

Raman Scattering

Stimulated Raman Spectroscopy

Nonlinear Spectroscopy

Emission Spectroscopy

Absorption Spectroscopy

spectral line profiles

Interferometers