859 citations
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Showing 2017 · physics.opticsShow all
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physics.optics2017★ 75 cited
Linear and nonlinear optical response of crystals using length and velocity gauges: Effect of basis truncation
Alireza Taghizadeh, F. Hipolito, T. G. Pedersen
We study the effects of a truncated band structure on the linear and nonlinear optical response of crystals using four methods. These are constructed by (i) choosing either length…
physics.optics2017★ 110 cited
Quasi Bound States in the Continuum with Few Unit Cells of Photonic Crystal Slab
Alireza Taghizadeh, Il-Sug Chung
Bound states in the continuum (BICs) in photonic crystal slabs represent the resonances with an infinite quality(Q)-factor, occurring above the light line for an infinitely periodi…