The flexible local approximation method (FLAME) is applied for the first time to the computation of the band diagrams of periodic dielectric structures (photonic crystals). Numerical experiments show that FLAME attains high accuracy on fairly coarse grids, with 6-8 orders of magnitude lower errors in the dispersion curves than alternative methods such as finite-element analysis or plane wave expansion with the same number of degrees of freedom.
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Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
Li Xiaojing
Qiao Guanjun
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Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
Qiao Guanjun
Chen Jierong
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Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
Chen Jierong
Xi, Zhou
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Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China