Parity-time (PT) symmetry in an optical parametric amplifier, based on negative index metamaterial (NIM), is studied. Parametric amplification processes are considered in all the three regimes of PT symmetry, namely, below, at and above the PT threshold. It may be possible to exploit PT symmetry for various applications including compensation of loss in NIMs.
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Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R ChinaShandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Liu, Weijie
Liu, Quancheng
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Bar Ilan Univ, Dept Phys, Inst Nanotechnol & Adv Mat, IL-52900 Ramat Gan, IsraelShandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Liu, Quancheng
Ni, Xiang
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Cent South Univ, Sch Phys, Changsha 410083, Hunan, Peoples R China
CUNY, Photon Initiat Adv Sci Res Ctr, New York, NY 10031 USAShandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Ni, Xiang
Jia, Yuechen
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Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R ChinaShandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Jia, Yuechen
Ziegler, Klaus
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Univ Augsburg, Inst Phys, D-86135 Augsburg, GermanyShandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Ziegler, Klaus
Alu, Andrea
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CUNY, Photon Initiat Adv Sci Res Ctr, New York, NY 10031 USA
CUNY, Phys Program, Grad Ctr, New York, NY 10016 USAShandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Alu, Andrea
Chen, Feng
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Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R ChinaShandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China