Chin. Phys. Lett.  2014, Vol. 31 Issue (2): 024202    DOI: 10.1088/0256-307X/31/2/024202
FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
Optical Transparency Induced by Periodic Modulation in a Passive Optical Coupler
LUO Xiao-Bing1, LIU Rong-Xuan2**, LIU Ming-Hua3, YU Xiao-Guang1, WU Dong-Lan1, HU Qiang-Lin1
1Department of Physics, Jinggangshan University, Ji'an 343009
2Department of Mathematics, Jinggangshan University, Ji'an 343009
3School of Electronics and Information Engineering, Jinggangshan University, Ji'an 343009
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LUO Xiao-Bing, LIU Rong-Xuan, LIU Ming-Hua et al  2014 Chin. Phys. Lett. 31 024202
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Abstract We propose a scheme for the realization of optical transparency by using a periodically modulated optical coupler with losses in one waveguide. We discover that the increase of the transparency can be achieved only by varying the parameters of modulation, and such modulation-enhanced transmission is the consequence of phase transition of the quasi-energy spectrum. Our findings offer an efficient way to manipulate light transmission in realistic dissipative systems.
Received: 30 October 2013      Published: 28 February 2014
PACS:  42.25.Bs (Wave propagation, transmission and absorption)  
  03.65.Xp (Tunneling, traversal time, quantum Zeno dynamics)  
  11.30.Er (Charge conjugation, parity, time reversal, and other discrete symmetries)  
  42.82.Et (Waveguides, couplers, and arrays)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/31/2/024202       OR      https://cpl.iphy.ac.cn/Y2014/V31/I2/024202
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LUO Xiao-Bing
LIU Rong-Xuan
LIU Ming-Hua
YU Xiao-Guang
WU Dong-Lan
HU Qiang-Lin
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