Abstract
The efficiency of a nonlinear optical process is proportional to the interaction time. We report a scheme of all-optical switching based on two motionless light pulses via the effect of electromagnetically induced transparency. One pulse was stopped as the stationary light pulse (SLP) and the other was stopped as stored light. The time of their interaction via the medium can be prolonged and, hence, the optical nonlinearity is greatly enhanced. Using a large optical density (OD) of 190, we achieved a very long interaction time of 6.9 μs. This can be analogous to the scheme of trapping light pulses by an optical cavity with a Q factor of 8×109. With the approach of using moving light pulses in the best situation, a switch can only be activated at 2 photons per atomic absorption cross section. With the approach of employing a SLP and a stored light pulse, a switch at only 0.56 photons was achieved and the efficiency is significantly improved. Moreover, the simulation results are in good agreement with the experimental data and show that the efficiency can be further improved by increasing the OD of the medium. Our work advances the technology in quantum information manipulation utilizing photons.
| Original language | English |
|---|---|
| Title of host publication | Frontiers in Physics - 4th International Meeting, IMFP 2013 |
| Publisher | American Institute of Physics Inc. |
| Pages | 17-26 |
| Number of pages | 10 |
| ISBN (Print) | 9780735412200 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
| Event | 4th International Meeting on Frontiers in Physics, IMFP 2013 - Kuala Lumpur, Malaysia Duration: 2013 Aug 27 → 2013 Aug 30 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1588 |
| ISSN (Print) | 0094-243X |
| ISSN (Electronic) | 1551-7616 |
Other
| Other | 4th International Meeting on Frontiers in Physics, IMFP 2013 |
|---|---|
| Country | Malaysia |
| City | Kuala Lumpur |
| Period | 13-08-27 → 13-08-30 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
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Interaction between two stopped light pulses. / Chen, Yi Hsin; Lee, Meng Jung; Hung, Weilun; Chen, Ying Cheng; Chen, Yong-Fan; Yu, Ite A.
Frontiers in Physics - 4th International Meeting, IMFP 2013. American Institute of Physics Inc., 2014. p. 17-26 (AIP Conference Proceedings; Vol. 1588).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Interaction between two stopped light pulses
AU - Chen, Yi Hsin
AU - Lee, Meng Jung
AU - Hung, Weilun
AU - Chen, Ying Cheng
AU - Chen, Yong-Fan
AU - Yu, Ite A.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - The efficiency of a nonlinear optical process is proportional to the interaction time. We report a scheme of all-optical switching based on two motionless light pulses via the effect of electromagnetically induced transparency. One pulse was stopped as the stationary light pulse (SLP) and the other was stopped as stored light. The time of their interaction via the medium can be prolonged and, hence, the optical nonlinearity is greatly enhanced. Using a large optical density (OD) of 190, we achieved a very long interaction time of 6.9 μs. This can be analogous to the scheme of trapping light pulses by an optical cavity with a Q factor of 8×109. With the approach of using moving light pulses in the best situation, a switch can only be activated at 2 photons per atomic absorption cross section. With the approach of employing a SLP and a stored light pulse, a switch at only 0.56 photons was achieved and the efficiency is significantly improved. Moreover, the simulation results are in good agreement with the experimental data and show that the efficiency can be further improved by increasing the OD of the medium. Our work advances the technology in quantum information manipulation utilizing photons.
AB - The efficiency of a nonlinear optical process is proportional to the interaction time. We report a scheme of all-optical switching based on two motionless light pulses via the effect of electromagnetically induced transparency. One pulse was stopped as the stationary light pulse (SLP) and the other was stopped as stored light. The time of their interaction via the medium can be prolonged and, hence, the optical nonlinearity is greatly enhanced. Using a large optical density (OD) of 190, we achieved a very long interaction time of 6.9 μs. This can be analogous to the scheme of trapping light pulses by an optical cavity with a Q factor of 8×109. With the approach of using moving light pulses in the best situation, a switch can only be activated at 2 photons per atomic absorption cross section. With the approach of employing a SLP and a stored light pulse, a switch at only 0.56 photons was achieved and the efficiency is significantly improved. Moreover, the simulation results are in good agreement with the experimental data and show that the efficiency can be further improved by increasing the OD of the medium. Our work advances the technology in quantum information manipulation utilizing photons.
UR - http://www.scopus.com/inward/record.url?scp=84903604238&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84903604238&partnerID=8YFLogxK
U2 - 10.1063/1.4866919
DO - 10.1063/1.4866919
M3 - Conference contribution
AN - SCOPUS:84903604238
SN - 9780735412200
T3 - AIP Conference Proceedings
SP - 17
EP - 26
BT - Frontiers in Physics - 4th International Meeting, IMFP 2013
PB - American Institute of Physics Inc.
ER -