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physics.optics2023
A series of avoided crossings of resonances in the system of several different dielectric resonators results in giant Q-factors
Konstantin Pichugin, Almas Sadreev, Evgeny Bulgakov
We perform optimization of Q-factor in the system of freestanding three/four/five/six coaxial subwavelength dielectric disks over all scales. Each parameter contributes almost one…
physics.optics2023
Super bound states in the continuum through merging in grating
Evgeny Bulgakov, Galina Shadrina, Almas Sadreev +1
Bound states in the continuum (BICs) in gratings composed of infinitely long silicon rods of rectangular cross-section are considered. We reveal merging off- Friedrich-Wintgen B…