Journal
PHYSICAL REVIEW LETTERS
Volume 109, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.033902
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Funding
- AFOSR [FA 9550-10-1-0433, FA 9550-10-1-0561, LRIR 09RY04COR]
- NSF [ECCS-1128571]
- Direct For Computer & Info Scie & Enginr
- Division Of Computer and Network Systems [0959856] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1128520] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1128571] Funding Source: National Science Foundation
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We show that complex PT-symmetric photonic lattices can lead to a new class of self-imaging Talbot effects. For this to occur, we find that the input field pattern has to respect specific periodicities dictated by the symmetries of the system. While at the spontaneous PT-symmetry breaking point the image revivals occur at Talbot lengths governed by the characteristics of the passive lattice, at the exact phase it depends on the gain and loss parameter, thus allowing one to control the imaging process.
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