Abstract
We calculate the rate of two-photon absorption for frequency-entangled photons in a tapered optical fiber whose diameter is comparable to the wavelength of the light. The confinement of the electric field in the transverse direction increases the intensity associated with a single photon, while the two-photon absorption rate is further enhanced by the fact that the sum of the frequencies of the two photons is on resonance with the upper atomic state, even though each photon has a relatively broad linewidth. As a result, the photons are effectively confined in all three dimensions and the two-photon absorption rate for frequency-entangled photons in a tapered fiber was found to be comparable to that for unentangled photons in a microcavity with a small mode volume.
| Original language | English (US) |
|---|---|
| Article number | 043823 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 80 |
| Issue number | 4 |
| DOIs | |
| State | Published - Oct 19 2009 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Enhanced two-photon absorption using entangled states and small mode volumes. / You, Hao; Hendrickson, S. M.; Franson, J. D.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 80, No. 4, 043823, 19.10.2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enhanced two-photon absorption using entangled states and small mode volumes
AU - You, Hao
AU - Hendrickson, S. M.
AU - Franson, J. D.
PY - 2009/10/19
Y1 - 2009/10/19
N2 - We calculate the rate of two-photon absorption for frequency-entangled photons in a tapered optical fiber whose diameter is comparable to the wavelength of the light. The confinement of the electric field in the transverse direction increases the intensity associated with a single photon, while the two-photon absorption rate is further enhanced by the fact that the sum of the frequencies of the two photons is on resonance with the upper atomic state, even though each photon has a relatively broad linewidth. As a result, the photons are effectively confined in all three dimensions and the two-photon absorption rate for frequency-entangled photons in a tapered fiber was found to be comparable to that for unentangled photons in a microcavity with a small mode volume.
AB - We calculate the rate of two-photon absorption for frequency-entangled photons in a tapered optical fiber whose diameter is comparable to the wavelength of the light. The confinement of the electric field in the transverse direction increases the intensity associated with a single photon, while the two-photon absorption rate is further enhanced by the fact that the sum of the frequencies of the two photons is on resonance with the upper atomic state, even though each photon has a relatively broad linewidth. As a result, the photons are effectively confined in all three dimensions and the two-photon absorption rate for frequency-entangled photons in a tapered fiber was found to be comparable to that for unentangled photons in a microcavity with a small mode volume.
UR - http://www.scopus.com/inward/record.url?scp=70350213105&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70350213105&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.80.043823
DO - 10.1103/PhysRevA.80.043823
M3 - Article
VL - 80
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 4
M1 - 043823
ER -