Details
| Original language | English |
|---|---|
| Title of host publication | 14th International School on Quantum Electronics |
| Subtitle of host publication | Laser Physics and Applications |
| Publication status | Published - 13 Mar 2007 |
| Event | 14th International School on Quantum Electronics: Laser Physics and Applications - Sunny Beach, Bulgaria Duration: 18 Sept 2006 → 22 Sept 2006 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 6604 |
| ISSN (Print) | 0277-786X |
Abstract
Spontaneous transfer of coherence has proven to be a good interpretative scheme for the explantation of the spectra of a probe laser probing a closed degenerate two-level systems. With its aid it was possible to give an explanation for the emergence of electromagnetically induced absorption and also to make predictions on the associated coupling laser spectra. Here we extend our work on the role of the coupling laser in electromagnetically induced absorption presenting new measurements of the probe and coupling laser absorption and dispersion spectra - taken in the D2 line of caesium - which reassert the importance of spontaneous transfer of coherence in the generation of electromagnetically induced absorption spectra. All measurements were performed with linearly polarised coupling and probe laser of orthogonal polarisation, acting on a perpendicularly propagating caesium atomic beam to minimise the Doppler broadening of the lines. For sake of completeness we compared the electromagnetically induced absorption spectra with electromagnetically induced transparency spectra obtained in another two-level system within the same line. The measured probe spectra were used to calculate the refractive index of caesium in the presence of electromagnetically induced transparency and absorption. On that basis we could calculate the effect of Kerr nonlinearities and measure nonlinear Kerr coefficients of the order of n 2 ≈10-5 cm2/mW with absorption coefficients of the order of α ≈ 0.1 cm-1.
Keywords
- Electromagnetically induced absorption, Electromagnetically induced transparency, Kerr effect
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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14th International School on Quantum Electronics: Laser Physics and Applications. 2007. 66040B (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6604).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Electromagnetically induced transparency, electromagnetically induced absorption and giant Kerr effect in closed degenerate two-level systems
AU - Molella, Luca Spani
AU - Rinkleff, Rolf Hermann
AU - Kühn, Gerrit
AU - Danzmann, Karsten
PY - 2007/3/13
Y1 - 2007/3/13
N2 - Spontaneous transfer of coherence has proven to be a good interpretative scheme for the explantation of the spectra of a probe laser probing a closed degenerate two-level systems. With its aid it was possible to give an explanation for the emergence of electromagnetically induced absorption and also to make predictions on the associated coupling laser spectra. Here we extend our work on the role of the coupling laser in electromagnetically induced absorption presenting new measurements of the probe and coupling laser absorption and dispersion spectra - taken in the D2 line of caesium - which reassert the importance of spontaneous transfer of coherence in the generation of electromagnetically induced absorption spectra. All measurements were performed with linearly polarised coupling and probe laser of orthogonal polarisation, acting on a perpendicularly propagating caesium atomic beam to minimise the Doppler broadening of the lines. For sake of completeness we compared the electromagnetically induced absorption spectra with electromagnetically induced transparency spectra obtained in another two-level system within the same line. The measured probe spectra were used to calculate the refractive index of caesium in the presence of electromagnetically induced transparency and absorption. On that basis we could calculate the effect of Kerr nonlinearities and measure nonlinear Kerr coefficients of the order of n 2 ≈10-5 cm2/mW with absorption coefficients of the order of α ≈ 0.1 cm-1.
AB - Spontaneous transfer of coherence has proven to be a good interpretative scheme for the explantation of the spectra of a probe laser probing a closed degenerate two-level systems. With its aid it was possible to give an explanation for the emergence of electromagnetically induced absorption and also to make predictions on the associated coupling laser spectra. Here we extend our work on the role of the coupling laser in electromagnetically induced absorption presenting new measurements of the probe and coupling laser absorption and dispersion spectra - taken in the D2 line of caesium - which reassert the importance of spontaneous transfer of coherence in the generation of electromagnetically induced absorption spectra. All measurements were performed with linearly polarised coupling and probe laser of orthogonal polarisation, acting on a perpendicularly propagating caesium atomic beam to minimise the Doppler broadening of the lines. For sake of completeness we compared the electromagnetically induced absorption spectra with electromagnetically induced transparency spectra obtained in another two-level system within the same line. The measured probe spectra were used to calculate the refractive index of caesium in the presence of electromagnetically induced transparency and absorption. On that basis we could calculate the effect of Kerr nonlinearities and measure nonlinear Kerr coefficients of the order of n 2 ≈10-5 cm2/mW with absorption coefficients of the order of α ≈ 0.1 cm-1.
KW - Electromagnetically induced absorption
KW - Electromagnetically induced transparency
KW - Kerr effect
UR - http://www.scopus.com/inward/record.url?scp=34249039290&partnerID=8YFLogxK
U2 - 10.1117/12.726879
DO - 10.1117/12.726879
M3 - Conference contribution
AN - SCOPUS:34249039290
SN - 0819467421
SN - 9780819467423
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 14th International School on Quantum Electronics
T2 - 14th International School on Quantum Electronics: Laser Physics and Applications
Y2 - 18 September 2006 through 22 September 2006
ER -