Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Alexander Cerjan"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Exceptional points (EPs)—singularities in the parameter space of non-Hermitian systems where two nearby eigenmodes coalesce—feature unique properties with applications such as sensitivity enhancement and chiral emission. Existing realiza
Externí odkaz:
https://doaj.org/article/aa81d91659ea4c4a82faff655178d842
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Topological metals are conducting materials with gapless band structures and nontrivial edge-localized resonances. Their discovery has proven elusive because traditional topological classification methods require band gaps to define topologi
Externí odkaz:
https://doaj.org/article/3da421005cfe45f9bfecf69e98bb9b06
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Bound states in the continuum can enhance light-matter interactions across a wide range of optical systems. Here, the authors present a design paradigm for creating pairs of bound states whose optical responses can be predictably controlled.
Externí odkaz:
https://doaj.org/article/171a2e2e7870427d88dcc162488d9154
Publikováno v:
APL Photonics, Vol 2, Iss 2, Pp 020801-020801-14 (2017)
We introduce a finite-difference frequency-domain algorithm for coupled acousto-optic simulations. First-principles acousto-optic simulation in time domain has been challenging due to the fact that the acoustic and optical frequencies differ by many
Externí odkaz:
https://doaj.org/article/4acca94fad5d488b80c5df3efeeccf9a
Autor:
Alexander Cerjan, Shanhui Fan
Publikováno v:
New Journal of Physics, Vol 18, Iss 12, p 125007 (2016)
We present a ${\bf{k}}\cdot {\bf{p}}$ theory of photonic crystals containing gain and loss in which the gain and loss are added to separate primitive cells of the underlying Hermitian system, thereby creating a supercell photonic crystal. We show tha
Externí odkaz:
https://doaj.org/article/64a1c0ac875145feb19d1e158e7afc83
Autor:
Alexander Cerjan, Terry Loring
Publikováno v:
Nanophotonics. 11:4765-4780
Recently, the study of topological structures in photonics has garnered significant interest, as these systems can realize robust, nonreciprocal chiral edge states and cavity-like confined states that have applications in both linear and nonlinear de
Publikováno v:
Optics express. 30(14)
Brillouin based distributed fiber sensors present a unique set of characteristics amongst fiber sensing architectures. They are able to measure absolute strain and temperature over long distances, with high spatial resolution, and very large dynamic
Autor:
Alexander Cerjan, Terry Loring
Publikováno v:
Physical Review B. 106
Although topological band theory has been used to discover and classify a wide array of novel topological phases in insulating and semi-metal systems, it is not well-suited to identifying topological phenomena in metallic or gapless systems. Here, we
Publikováno v:
Nature communications. 13(1)
Bound states in the continuum (BICs) have received significant attention for their ability to enhance light-matter interactions across a wide range of systems, including lasers, sensors, and frequency mixers. However, many applications require degene
Publikováno v:
Fredy Vides
We examine the utility of the quadratic pseudospectrum in photonics and condensed matter. Specifically, the quadratic pseudospectrum represents a method for approaching systems with incompatible observables, as it both minimizes the "eigen-error" in