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Spatial Resolution Enhancement in A 2d Photonic Crystal Based on Complex Square Lattice
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نویسنده
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Rafiee Dastjerdi Somayeh ,Ghanaatshoar Majid ,Delfanazari Kaveh
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منبع
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International Journal Of Optics And Photonics - 2014 - دوره : 8 - شماره : 1 - صفحه:41 -47
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چکیده
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We study the focusing properties of a two dimensional complex square-lattice photonic crystal (pc) comprising air holes immersed in ge medium. the finite difference time domain (fdtd) method is utilized to calculate the dispersion band diagram and to simulate the image formation incorporating the perfectly matched layer (pml) boundary condition. in contrast to the common square pcs with the same air filling factor, the frequency corresponding to the effective negative refraction occurs in the second photonic band and the spatial image resolution is improved.
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کلیدواژه
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2d Photonic Crystal ,Integrated Optics ,Near-Field Imaging ,Negative Index Materials ,Sub-Wavelength Spatial Resolution
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آدرس
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Shahid Beheshti University, Laser And Plasma Research Institute, Shahid Beheshti University, G C , Evin 1983969411, Tehran, Iran, ایران, Shahid Beheshti University, Laser And Plasma Research Institute, Shahid Beheshti University, G C , Evin 1983969411, Tehran, Iran, ایران, University Of Southampton, Optoelectronic Research Centre, University Of Southampton, So17 1bj, Southampton, Uk, Uk
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Authors
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