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Volumn 80, Issue 4, 2009, Pages

Enhanced two-photon absorption using entangled states and small mode volumes

Author keywords

[No Author keywords available]

Indexed keywords

ATOMIC STATE; ENTANGLED PHOTONS; ENTANGLED STATE; MODE VOLUME; SINGLE PHOTONS; TAPERED FIBER; TAPERED OPTICAL FIBERS; THREE DIMENSIONS; TRANSVERSE DIRECTIONS; TWO PHOTON; TWO-PHOTON ABSORPTIONS;

EID: 70350213105     PISSN: 10502947     EISSN: 10941622     Source Type: Journal    
DOI: 10.1103/PhysRevA.80.043823     Document Type: Article
Times cited : (27)

References (23)
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    • 10.1103/PhysRevA.79.063830
    • B. C. Jacobs and J. D. Franson, Phys. Rev. A 79, 063830 (2009). 10.1103/PhysRevA.79.063830
    • (2009) Phys. Rev. A , vol.79 , pp. 063830
    • Jacobs, B.C.1    Franson, J.D.2
  • 7
    • 3543097280 scopus 로고
    • 10.1103/PhysRevLett.62.1603
    • J. Gea-banacloche, Phys. Rev. Lett. 62, 1603 (1989). 10.1103/PhysRevLett. 62.1603
    • (1989) Phys. Rev. Lett. , vol.62 , pp. 1603
    • Gea-Banacloche, J.1
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  • 13
    • 35248900584 scopus 로고    scopus 로고
    • 10.1103/PhysRevA.76.043813
    • B. Dayan, Phys. Rev. A 76, 043813 (2007). 10.1103/PhysRevA.76.043813
    • (2007) Phys. Rev. A , vol.76 , pp. 043813
    • Dayan, B.1
  • 14
    • 2942750385 scopus 로고    scopus 로고
    • 10.1364/OPEX.12.001025
    • L. Tong, J. Lou, and E. Mazur, Opt. Express 12, 1025 (2004). 10.1364/OPEX.12.001025
    • (2004) Opt. Express , vol.12 , pp. 1025
    • Tong, L.1    Lou, J.2    Mazur, E.3
  • 17
    • 70350251455 scopus 로고    scopus 로고
    • The assumptions that only the ground state of the atoms is initially populated and that only one time order of two-photon absorption is considered were made here in order to simplify the calculations, but they are not necessary in general. If these assumptions were not made, it may be possible to implement interesting EIT effects involving coherence between the atomic levels, but we have not investigated that possibility.
    • The assumptions that only the ground state of the atoms is initially populated and that only one time order of two-photon absorption is considered were made here in order to simplify the calculations, but they are not necessary in general. If these assumptions were not made, it may be possible to implement interesting EIT effects involving coherence between the atomic levels, but we have not investigated that possibility.
  • 18
    • 70350252177 scopus 로고    scopus 로고
    • The calculated enhancement in the two-photon absorption rate would be reduced if a significant amount of dispersion occurs in the fiber. These effects were estimated by calculating the spread in the group velocities of the fiber modes for wavelengths ranging over a 2 nm bandwidth (from 778 to 780 nm) using Eq. (21) in Ref.. For a tapered fiber with length L=5 mm, the results show that dispersion increases the pulse width by approximately ∼12 μm, which is small compared to the original separation s∼60 μm of the photons in an entangled state with the corresponding bandwidth. Thus, dispersion is not expected to have a major effect for tapered fibers of this length.
    • The calculated enhancement in the two-photon absorption rate would be reduced if a significant amount of dispersion occurs in the fiber. These effects were estimated by calculating the spread in the group velocities of the fiber modes for wavelengths ranging over a 2 nm bandwidth (from 778 to 780 nm) using Eq. (21) in Ref.. For a tapered fiber with length L=5 mm, the results show that dispersion increases the pulse width by approximately ∼12 μm, which is small compared to the original separation s∼60 μm of the photons in an entangled state with the corresponding bandwidth. Thus, dispersion is not expected to have a major effect for tapered fibers of this length.
  • 19
    • 34247362746 scopus 로고    scopus 로고
    • 10.1103/PhysRevA.75.043813
    • M. Tsang, Phys. Rev. A 75, 043813 (2007). 10.1103/PhysRevA.75.043813
    • (2007) Phys. Rev. A , vol.75 , pp. 043813
    • Tsang, M.1
  • 22
    • 34547477644 scopus 로고    scopus 로고
    • 10.1103/PhysRevA.76.013823
    • B. Min, L. Yang, and K. Vahala, Phys. Rev. A 76, 013823 (2007). 10.1103/PhysRevA.76.013823
    • (2007) Phys. Rev. A , vol.76 , pp. 013823
    • Min, B.1    Yang, L.2    Vahala, K.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.