Enhancing stimulated Raman excitation and two-photon absorption using entangled states of light
We find that stimulated Raman excitation of an atom by a two-photon pulse can be enhanced by orders of magnitude if the photons are simultaneously frequency correlated and spatially anticorrelated. That is, a correlated photon pair must have an inherent time delay between its constituent photons. Th...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2021-10-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.3.043029 |
| _version_ | 1827285687816159232 |
|---|---|
| author | Anatoly Svidzinsky Girish Agarwal Anton Classen Alexei V. Sokolov Aleksei Zheltikov M. Suhail Zubairy Marlan O. Scully |
| author_facet | Anatoly Svidzinsky Girish Agarwal Anton Classen Alexei V. Sokolov Aleksei Zheltikov M. Suhail Zubairy Marlan O. Scully |
| author_sort | Anatoly Svidzinsky |
| collection | DOAJ |
| description | We find that stimulated Raman excitation of an atom by a two-photon pulse can be enhanced by orders of magnitude if the photons are simultaneously frequency correlated and spatially anticorrelated. That is, a correlated photon pair must have an inherent time delay between its constituent photons. This counterintuitive feature is a manifestation of the uncertainty principle, which yields that frequency-correlated photons cannot be time (spatially) correlated. This is opposite to two-photon absorption by a three-level atom, for which the enhancement occurs if photons in the pulse are frequency anticorrelated and spatially correlated, that is, photons in the pair simultaneously interact with the atom. Our findings can be useful for imaging and spectroscopy of biological samples which demand low illumination intensity. |
| first_indexed | 2024-04-24T10:18:57Z |
| format | Article |
| id | doaj.art-e4f115ecade14a92a622f02889e8b9ec |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:18:57Z |
| publishDate | 2021-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-e4f115ecade14a92a622f02889e8b9ec2024-04-12T17:14:46ZengAmerican Physical SocietyPhysical Review Research2643-15642021-10-013404302910.1103/PhysRevResearch.3.043029Enhancing stimulated Raman excitation and two-photon absorption using entangled states of lightAnatoly SvidzinskyGirish AgarwalAnton ClassenAlexei V. SokolovAleksei ZheltikovM. Suhail ZubairyMarlan O. ScullyWe find that stimulated Raman excitation of an atom by a two-photon pulse can be enhanced by orders of magnitude if the photons are simultaneously frequency correlated and spatially anticorrelated. That is, a correlated photon pair must have an inherent time delay between its constituent photons. This counterintuitive feature is a manifestation of the uncertainty principle, which yields that frequency-correlated photons cannot be time (spatially) correlated. This is opposite to two-photon absorption by a three-level atom, for which the enhancement occurs if photons in the pulse are frequency anticorrelated and spatially correlated, that is, photons in the pair simultaneously interact with the atom. Our findings can be useful for imaging and spectroscopy of biological samples which demand low illumination intensity.http://doi.org/10.1103/PhysRevResearch.3.043029 |
| spellingShingle | Anatoly Svidzinsky Girish Agarwal Anton Classen Alexei V. Sokolov Aleksei Zheltikov M. Suhail Zubairy Marlan O. Scully Enhancing stimulated Raman excitation and two-photon absorption using entangled states of light Physical Review Research |
| title | Enhancing stimulated Raman excitation and two-photon absorption using entangled states of light |
| title_full | Enhancing stimulated Raman excitation and two-photon absorption using entangled states of light |
| title_fullStr | Enhancing stimulated Raman excitation and two-photon absorption using entangled states of light |
| title_full_unstemmed | Enhancing stimulated Raman excitation and two-photon absorption using entangled states of light |
| title_short | Enhancing stimulated Raman excitation and two-photon absorption using entangled states of light |
| title_sort | enhancing stimulated raman excitation and two photon absorption using entangled states of light |
| url | http://doi.org/10.1103/PhysRevResearch.3.043029 |
| work_keys_str_mv | AT anatolysvidzinsky enhancingstimulatedramanexcitationandtwophotonabsorptionusingentangledstatesoflight AT girishagarwal enhancingstimulatedramanexcitationandtwophotonabsorptionusingentangledstatesoflight AT antonclassen enhancingstimulatedramanexcitationandtwophotonabsorptionusingentangledstatesoflight AT alexeivsokolov enhancingstimulatedramanexcitationandtwophotonabsorptionusingentangledstatesoflight AT alekseizheltikov enhancingstimulatedramanexcitationandtwophotonabsorptionusingentangledstatesoflight AT msuhailzubairy enhancingstimulatedramanexcitationandtwophotonabsorptionusingentangledstatesoflight AT marlanoscully enhancingstimulatedramanexcitationandtwophotonabsorptionusingentangledstatesoflight |