Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Nada, Mohamed Y."'
Autor:
Nada, Mohamed Y., Mealy, Tarek, Islam, Md Shafiqul, Vitebskiy, Ilya, Gibson, Ricky, Bedford, Robert, Boyraz, Ozdal, Capolino, Filippo
We design a three-way silicon optical waveguide with the Bloch dispersion relation supporting a stationary inflection point (SIP). The SIP is a third order exceptional point of degeneracy (EPD) where three Bloch modes coalesce forming the frozen mode
Externí odkaz:
http://arxiv.org/abs/2211.01408
We introduce a circuit topology based on a simple triple-ladder circuit realized with lumped reactive components that provides a sixth order degenerate band-edge (6DBE). The 6DBE is a special kind of sixth-order exceptional point of degeneracy in a l
Externí odkaz:
http://arxiv.org/abs/2109.09866
We demonstrate theoretically and experimentally that a periodic three-way microstrip coupled waveguide exhibits a stationary inflection point (SIP). The SIP is a third order exceptional point of degeneracy (EPD) where three eigenmodes of the guiding
Externí odkaz:
http://arxiv.org/abs/2006.04555
Autor:
Kazemi, Hamidreza, Hajiaghajani, Amirhossein, Nada, Mohamed Y., Dautta, Manik, Alshetaiwi, Muhannad, Tseng, Peter, Capolino, Filippo
We exploit the premises of exceptional points of degeneracy (EPDs) induced in linear time-periodic (LTP) systems to achieve extremely sensitive biosensors. The EPD is formed in a single LC resonator where the total capacitance is comprised of a time-
Externí odkaz:
http://arxiv.org/abs/1909.03344
Autor:
Nada, Mohamed Y., Capolino, Filippo
Publikováno v:
J. Opt. Soc. Am. B 37, 2319-2328 (2020)
We demonstrate for the first time the occurrence of a sixth order exceptional point of degeneracy (EPD) in a realistic multimode optical photonic structure by using a modified periodic coupled resonators optical waveguide (CROW), at the optical wavel
Externí odkaz:
http://arxiv.org/abs/1909.03114
We present the experimental demonstration of the occurrence of exceptional points of degeneracy (EPDs) in a single resonator by introducing a linear time-periodic variation of one of its components, in contrast to EPDs in parity time (PT)-symmetric s
Externí odkaz:
http://arxiv.org/abs/1908.08516
Publikováno v:
Phys. Rev. Applied 11, 014007 (2019)
We present a general theory of exceptional points of degeneracy (EPD) in periodically time-variant systems that do not necessarily require the presence of loss or gain, and we show that even a single resonator with a time-periodic component may devel
Externí odkaz:
http://arxiv.org/abs/1804.01075
Publikováno v:
Phys. Rev. B 96, 184304 (2017)
We present a novel approach and a theoretical framework for generating high order exceptional points of degeneracy (EPD) in photonic structures based on periodic coupled resonators optical waveguides (CROWs). Such EPDs involve the coalescence of Floq
Externí odkaz:
http://arxiv.org/abs/1708.07135
Publikováno v:
J. Lightwave Technol. 36, 3030-3039 (2018)
We propose a novel scheme for enhancing the quality factor of coupled resonators optical waveguides (CROWs) when operating near a degenerate band edge (DBE). A DBE is a four-mode exceptional point of degeneracy (EPD) occurring when four Bloch eigenmo
Externí odkaz:
http://arxiv.org/abs/1707.09737
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