Hyperfine Studies of Lithium using Saturated Absorption ...

Hyperfine Studies of Lithium using Saturated Absorption ...

Hyperfine Studies of Lithium using Saturated Absorption Spectroscopy

Tory Carr Advisor: Dr. Alex Cronin Hyperfine Structure of 6Li & 7

Li Normal Setup Theoretical Limit

Problem Doppler Broadening smears out

resolution Normal Setup Theory

at 375 C Saturated Absorption Setup

New Spectrum Saturated Absorption Signal Data

collected at 375 C Light as seen from the atoms

Pump beam probe beam v0

Population Difference Scan in frequency +dv

0 -dv Theoretical Model

Isotope/ Transition Difference Variation with Buffer Gas

Pressure Temperature variation Temperature variation- diff

sig Maximum in difference signal Maximum Signal

When: Conclusion Limiting

Factors in resolution Other broadening mechanisms Residual Doppler broadening Improvements

to setup Improved alignment Reduce laser linewidth

Further experiments Effects of polarization

Magnetic field effects

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