Results 1 to 10 of about 321,428 (283)

Single-photon absorption and emission from a natural photosynthetic complex. [PDF]

Nature, 2023
AbstractPhotosynthesis is generally assumed to be initiated by a single photon1–3 from the Sun, which, as a weak light source, delivers at most a few tens of photons per nanometre squared per second within a chlorophyll absorption band1. Yet much experimental and theoretical work over the past 40 years has explored the events during photosynthesis ...
Li Q, Orcutt K, Cook RL, Sabines-Chesterking J, Tong AL, Schlau-Cohen GS, Zhang X, Fleming GR, Whaley KB.   +8 more
europepmc   +5 more sources

Heralded single photon absorption by a single atom [PDF]

Nature Physics, 2010
The emission and absorption of single photons by single atomic particles is a fundamental limit of matter-light interaction, manifesting its quantum mechanical nature.
A Haase, A Kreuter, A. Haase, B Kraus, BB Blinov, C Monroe, C Schuck, C. Schuck, D Leibfried, DL Moehring, F. Dubin, F. Rohde, G Wrigge, H Haeffner, HG Barros, HJ Kimble, J McKeever, J Volz, J. Eschner, J. Ghosh, J. Huwer, JI Cirac, L Luo, L-M Duan, M Almendros, M Hijlkema, M Keller, M Sondermann, M. Almendros, M. Hennrich, MK Tey, N Piro, N. Piro, P Maunz, P Maunz, R Blatt, R Gerritsma, R Maiwald, R Ursin, S Gerber, S Lloyd, S Olmschenk, SA Aljunid, T Legero, T Wilk, T Wilk   +45 more
core   +3 more sources

Efficient single photon absorption by a trapped moving atom [PDF]

Physical Review A, 2016
The influence of the center of mass motion of a trapped two level system on efficient resonant single photon absorption is investigated. It is shown that this absorption process depends strongly on the ratio between the characteristic time scales of ...
Alber, Gernot, Leuchs, Gerd, Trautmann, Nils   +2 more
core   +3 more sources

Single photon absorption by a single quantum emitter [PDF]

Physical Review Letters, 2008
We show that a three-level lambda quantum emitter with equal spontaneous emission rates on both optically active transitions can absorb an incident light field with a probability approaching unity, provided that the focused light profile matches that of ...
A. Imamoglu, D. Pinotsi, H. J. Carmichael, Y. Yamamoto   +3 more
core   +3 more sources

Single Photon Source Using Laser Pulses and Two-Photon Absorption [PDF]

Physical Review A, 2006
We have previously shown that two-photon absorption (TPA) and the quantum Zeno effect can be used to make deterministic quantum logic devices from an otherwise linear optical system.
Franson, J. D., Jacobs, B. C., Pittman, T. B.   +2 more
core   +3 more sources

Cooperative single-photon absorption at interfaces [PDF]

Chemical Physics Letters, 2002
The pairwise absorption of light by chemically distinct molecules in close proximity can result in their cooperative single-photon excitation. It is shown how new characteristics emerge where the two molecular species concerned lie on opposite sides of a phase boundary or interface, as for example with two immiscible liquids, one polar and the other ...
Andrews, Andrews, Andrews, Andrews, Andrews, Avery, Avery, Craig, Craig, David L. Andrews, Gomberoff, Hudis, John, Juzeliūnas, Ketelaar, Kweon, McLone, Meath, Philip Allcock, Power, Power, Scholes, Woolley   +22 more
core   +5 more sources

On-demand single-photon state generation via nonlinear absorption [PDF]

Physical Review A, 2004
We propose a method for producing on-demand single-photon states based on collision-induced exchanges of photons and unbalanced linear absorption between two single-mode light fields.
A. Beveratos, C. H. Bennett, D. E. Walls, Makoto Yamashita, Michael W. Jack, Tao Hong   +5 more
core   +2 more sources

Removal of a single photon by adaptive absorption [PDF]

Physical Review A, 2001
We present a method to remove, using only linear optics, exactly one photon from a field-mode. This is achieved by putting the system in contact with an absorbing environment which is under continuous monitoring.
A. Peres, A.C. Doherty, A.C. Doherty, B. Huttner, C.W. Helstrom, D. Bouwmeester, D. Bouwmeester, D.B. Horoshko, E. Knill, H. Carmichael, H. Mabuchi, H. Weinfurter, H.F. Hofmann, H.M. Wiseman, H.M. Wiseman, H.M. Wiseman, H.M. Wiseman, H.M. Wiseman, J. Calsamiglia, J.-W. Pan, J.A. Dunningham, J.M. Shapiro, John Calsamiglia, Kalle-Antti Suominen, M. Michler, M.S. Kim, Norbert Lütkenhaus, P. Goetsch, P. Tombesi, R.A. Campos, S. Mancini, S.L. Braunstein, S.L. Braunstein, S.M. Barnett, Stephen M. Barnett, U. Leonhardt, Y. Yamamoto   +36 more
core   +5 more sources

Absorption-based quantum communication with NV centres [PDF]

New Journal of Physics, 2015
We propose a scheme for performing an entanglement-swapping operation within a quantum communications hub (a Bell like measurement) using an NV-centre’s $| \pm 1\rangle \leftrightarrow | {A}_{2}\rangle $ optical transition.
Burkhard Scharfenberger, Hideo Kosaka, William J Munro, Kae Nemoto   +3 more
doaj   +3 more sources

Suppression of residual single-photon absorption relative to two-photon absorption in high finesse planar microcavities [PDF]

IEEE Photonics Technology Letters, 2008
Suppression of residual single-photon absorption (SPA) relative to two-photon absorption (TPA) in a high finesse GaAs planar microcavity is explored. The TPA photocurrent becomes larger than the SPA photocurrent as long as the incident continuous-wave ...
Barry, Liam P., Bondarczuk, Krzysztof, Bradley, Ann Louise, Donegan, John Francis, Flood, Edward, Guo, Wei Hua, Lynch, Michael, Maguire, Paul J., O'Dowd, John, Quinlan, Tom   +9 more
core   +6 more sources