Abstract
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.
| Original language | English |
|---|---|
| Article number | 033902 |
| Journal | Physical Review Letters |
| Volume | 109 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jul 20 2012 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
PT-symmetric talbot effects. / Ramezani, Hamidreza; Christodoulides, D. N.; Kovanis, V.; Vitebskiy, I.; Kottos, Tsampikos.
In: Physical Review Letters, Vol. 109, No. 3, 033902, 20.07.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - PT-symmetric talbot effects
AU - Ramezani, Hamidreza
AU - Christodoulides, D. N.
AU - Kovanis, V.
AU - Vitebskiy, I.
AU - Kottos, Tsampikos
PY - 2012/7/20
Y1 - 2012/7/20
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84864190468&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864190468&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.109.033902
DO - 10.1103/PhysRevLett.109.033902
M3 - Article
VL - 109
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 3
M1 - 033902
ER -