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Rydberg atoms, with large principal quantum number, exhibit certain properties, such as long lifetimes and strong interactions with fields and other atoms, which have been extensively investigated recently. One of the properties is the electromagnetically induced transparency (EIT) of Rydberg ladder system, which can be used to measure the radio frequency (RF) field with high sensitivity. In this paper, we investigate the quantum coherent effect of cesium Rydberg atom in a three-level ladder system involving the ground state (6S1/2), the excited state (6P3/2) and 49S1/2 Rydberg state in room temperature vapor cell. The probe laser (852 nm) drives the transition of 6S1/2(F=4)→6P3/2(F'=5), while the coupling laser (510 nm) couples the Rydberg transition of 6P3/2 (F'=5)→nS1/2. A typical electromagnetically induced transparency spectrum is obtained when the weak probe laser is scanned through the transition of 6S1/2(F=4)→6P3/2(F'=5) and the coupling laser tuning to Rydberg transition. The two-photon RF spectra are observed when the RF field with a frequency of ～16.9 GHz couples the Rydberg transition of 49S1/2→47D3/2, where the EIT signal is split into two EIT peaks due to the interaction between the RF field and Rydberg atoms. The dependences of EIT splitting on the power of RF field are investigated. The results show that the EIT splitting increases with the power of RF field, which can inversely be used to measure the RF field with a higher spatial resolution in the future.
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Keywords:
- Rydberg three-level system /
- two-photon spectra of RF field /
- electromagnetically induced transparency
[1] Boller K J, Imamoğlu A, Harris S E 1991 Phys. Rev. Lett. 66 2593
[2] Fleischhauer M, Keitel C H, Scully M O 1992 Phys. Rev. A 46 1468
[3] Phillips D F, Fleischhauer A, Mair A, Walsworth R L, Lukin M D 2001 Phys. Rev. Lett. 86 783
[4] Isenhower L, Urban E, Zhang X L, Gill A T, Henage T, Johnson T A, Walker T G, Saffman M 2010 Phys. Rev. Lett. 104 010503
[5] Mohapatra A K, Jackson T R, Adams C S 2007 Phys. Rev. Lett. 98 113003
[6] Gallagher T F 1994 Rydberg Atoms (Cambridge: Cambridge University Press) pp11-47
[7] Weatherill K J, Pritchard J D, Abel R P, Bason M G, Mohapatra A K, Adams C S 2008 J. Phys. B 41 201002
[8] Bason M G, Mohapatra A K, Weatherill K J, Adams C S 2008 Phys. Rev. A 77 032305
[9] Mohapatra A K, Bason M G, Butscher B, Weatherill K J, Adams C S 2008 Nature Phys. 4 890
[10] Abi-Salloum T Y 2010 Phys. Rev. A 81 053836
[11] Teo B K, Feldbaum D, Cubel T, Guest J R, Berman P R, Raithel G 2003 Phys. Rev. A 68 053407
[12] Peyronel T, Firstenberg O, Liang Q Y, Hofferberth S, Gorshkov A V, Pohl T, Lukin M D, Vuletić V 2012 Nature 488 57
[13] Fleischhauer M, Lukin M D 2000 Phys. Rev. Lett. 84 5094
[14] Maxwell D, Szwer D J, Paredes-Barato D, Busche H, Pritchard J D, Gauguet A, Weatherill K J, Jones M P A, Adams C S 2013 Phys. Rev. Lett. 110 103001
[15] Maxwell D, Szwer D J, Paredes-Barato D, Busche H, Pritchard J D, Gauguet A, Jones M P A, Adams C S 2014 Phys. Rev. A 89 043827
[16] Sedlacek J A, Schwettmann A, Kübler H, Shaffer J P 2013 Phys. Rev. Lett. 111 063001
[17] Holloway C L, Gordon J A, Schwarzkopf A, Anderson D A, Miller S A, Thaicharoen N, Raithel G 2014 Appl. Phys. Lett. 104 244102
[18] Gentile T R, Hughey B J, Kleppner D 1989 Phys. Rev. A 40 5103
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[1] Boller K J, Imamoğlu A, Harris S E 1991 Phys. Rev. Lett. 66 2593
[2] Fleischhauer M, Keitel C H, Scully M O 1992 Phys. Rev. A 46 1468
[3] Phillips D F, Fleischhauer A, Mair A, Walsworth R L, Lukin M D 2001 Phys. Rev. Lett. 86 783
[4] Isenhower L, Urban E, Zhang X L, Gill A T, Henage T, Johnson T A, Walker T G, Saffman M 2010 Phys. Rev. Lett. 104 010503
[5] Mohapatra A K, Jackson T R, Adams C S 2007 Phys. Rev. Lett. 98 113003
[6] Gallagher T F 1994 Rydberg Atoms (Cambridge: Cambridge University Press) pp11-47
[7] Weatherill K J, Pritchard J D, Abel R P, Bason M G, Mohapatra A K, Adams C S 2008 J. Phys. B 41 201002
[8] Bason M G, Mohapatra A K, Weatherill K J, Adams C S 2008 Phys. Rev. A 77 032305
[9] Mohapatra A K, Bason M G, Butscher B, Weatherill K J, Adams C S 2008 Nature Phys. 4 890
[10] Abi-Salloum T Y 2010 Phys. Rev. A 81 053836
[11] Teo B K, Feldbaum D, Cubel T, Guest J R, Berman P R, Raithel G 2003 Phys. Rev. A 68 053407
[12] Peyronel T, Firstenberg O, Liang Q Y, Hofferberth S, Gorshkov A V, Pohl T, Lukin M D, Vuletić V 2012 Nature 488 57
[13] Fleischhauer M, Lukin M D 2000 Phys. Rev. Lett. 84 5094
[14] Maxwell D, Szwer D J, Paredes-Barato D, Busche H, Pritchard J D, Gauguet A, Weatherill K J, Jones M P A, Adams C S 2013 Phys. Rev. Lett. 110 103001
[15] Maxwell D, Szwer D J, Paredes-Barato D, Busche H, Pritchard J D, Gauguet A, Jones M P A, Adams C S 2014 Phys. Rev. A 89 043827
[16] Sedlacek J A, Schwettmann A, Kübler H, Shaffer J P 2013 Phys. Rev. Lett. 111 063001
[17] Holloway C L, Gordon J A, Schwarzkopf A, Anderson D A, Miller S A, Thaicharoen N, Raithel G 2014 Appl. Phys. Lett. 104 244102
[18] Gentile T R, Hughey B J, Kleppner D 1989 Phys. Rev. A 40 5103
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