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Published on: August 6, 2018
Photoionization hole burning and nonlinear Zeeman effect in CaF(2):Sm(2+)
Optics Letters
|September 2, 2009
Summary
Persistent spectral hole burning in CaF(2):Sm(2+) reveals a new material class. This study measured the nonlinear Zeeman effect, finding the ground state significantly influences it.
Area of Science:
- Solid-state spectroscopy
- Quantum optics
- Materials science
Background:
- Persistent spectral hole burning (PSHB) is a spectroscopic technique used to study materials.
- Calcium fluoride doped with divalent samarium (CaF(2):Sm(2+)) exhibits PSHB due to Sm(2+) photoionization.
- This phenomenon indicates a novel class of PSHB materials.
Purpose of the Study:
- To investigate the nonlinear Zeeman effect in CaF(2):Sm(2+) using PSHB.
- To determine the dominant contribution to the nonlinear Zeeman effect in this material.
Main Methods:
- Persistent spectral hole burning (PSHB) was employed.
- High-resolution measurements (~100 MHz) of the nonlinear Zeeman effect were performed.
- The (7)F(0)A(1g) ? A(1u) transition at 695.8 nm was analyzed.
Main Results:
- A nonlinear coefficient of 0.93 Hz/G(2) was measured for the nonlinear Zeeman effect.
- This value is in close agreement with theoretical calculations (1.0 Hz/G(2)) for the (7)F(0)-(7)F(1) interaction.
Conclusions:
- The ground state of the Sm(2+) ion significantly contributes to the nonlinear Zeeman effect.
- CaF(2):Sm(2+) represents a new class of persistent hole-burning materials with potential applications in spectroscopy.
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