Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Nicholas S. Nye"'
Autor:
Nicholas S. Nye
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033053 (2023)
In this paper, we formally prove how, by cyclically varying the parameters of a generalized two-level discrete and non-Hermitian Hamiltonian, the respective state vector converts to the instantaneous eigenstate of the system in the adiabatic limit, i
Externí odkaz:
https://doaj.org/article/5d5ed460dee04841aefa47d7b77540c2
Autor:
Georgios G. Pyrialakos, Nora Schmitt, Nicholas S. Nye, Matthias Heinrich, Nikolaos V. Kantartzis, Alexander Szameit, Demetrios N. Christodoulides
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
The electrons in 2D materials like graphene are described by the relativistic Dirac equation. Here the authors present a lattice of evanescently coupled waveguides that emulates a wide range of Dirac excitations and study the type-II edge states that
Externí odkaz:
https://doaj.org/article/777851c257af47a0bbe6961a63c4b4c9
Publikováno v:
ACS Photonics. 6:475-481
Tilted-pulse-front pulses, which are produced via dispersive devices that introduce angular dispersion, are useful in many areas of nonlinear optics. Such pulses typically have large transverse cro...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::742d165ad6849d181900ecea39922cfe
https://doi.org/10.1021/acsphotonics.8b01437
https://doi.org/10.1021/acsphotonics.8b01437
Autor:
Ahmed El Halawany, Nicholas S. Nye, Mercedeh Khajavikhan, Christos Markos, D. N. Christodoulides
Publikováno v:
Nye, N S, Halawany, A E, Markos, C, Khajavikhan, M & Christodoulides, D N 2020, ' Flexible PT-Symmetric Optical Metasurfaces ', Physical Review Applied, vol. 13, no. 6 . https://doi.org/10.1103/PhysRevApplied.13.064005
The synthesis of ultrathin photonic structures in order to effectively redirect and mold optical wave fronts into arbitrary shapes is of crucial importance in modern beam steering, imaging, and sensing technologies. To this end, planar subwavelength
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31c926d527184b937ac219982515db09
https://orbit.dtu.dk/en/publications/fda6bf9a-22df-4104-b234-ccf93c2aba72
https://orbit.dtu.dk/en/publications/fda6bf9a-22df-4104-b234-ccf93c2aba72
Autor:
Demetrios N. Christodoulides, Nicholas S. Nye, Mercedeh Khajavikhan, Ramy El-Ganainy, Mohammad P. Hokmabadi
Publikováno v:
Photonic and Phononic Properties of Engineered Nanostructures IX.
Supersymmetric transformations aim to relate boson and fermions, two different species of particles, and their interactions. In quantum mechanics, the mathematical framework of SUSY can be used to design isospectral potentials. By virtue of the isomo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1c6b7be8b2fe059f2e91aa34b258121
https://doi.org/10.1117/12.2517688
https://doi.org/10.1117/12.2517688
Autor:
M. A. N. Razvi, Ahmed El Halawany, Ahmed Bakry, Ahmed Alshahrie, Demetrios N. Christodoulides, Nicholas S. Nye, Mercedeh Khajavikhan
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 22:107-114
We show that passive parity-time (PT) symmetric metasurfaces can be utilized to appropriately engineer the resulting far-field characteristics. Such PT-symmetric structures are capable of eliminating diffraction orders in specific directions, while m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90715dd5920000567126dc19f8aec372
https://doi.org/10.1109/jstqe.2016.2537798
https://doi.org/10.1109/jstqe.2016.2537798
Autor:
Demetrios N. Christodoulides, Mohammad P. Hokmabadi, Ramy El-Ganainy, Nicholas S. Nye, Mercedeh Khajavikhan
Publikováno v:
Conference on Lasers and Electro-Optics.
Stability through symmetry A common route to get more light out of a laser system is to couple multiple lasers to form an array. However, instabilities owing to cross-talk and interference between different modes of individual cavities is generally d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fb62f0ccbbd2f28358d8c3e808f1bdc
https://doi.org/10.1364/cleo_si.2019.sw4n.1
https://doi.org/10.1364/cleo_si.2019.sw4n.1
Autor:
Cheng-Yu Wang, Philip P. Donahue, Chenji Zhang, Nicholas S. Nye, Rong Tang, Jennifer R. Miller, Zhiwen Liu, Christine D. Keating, Demetrios N. Christodoulides
Publikováno v:
Ultrafast Nonlinear Imaging and Spectroscopy VI.
We report on a novel nanoparticle platform by electric field assisted assembly, which is capable of manipulating the refractive index distribution through controlling the particle assembly. Two examples based on the control of the scattering properti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad9d6f1e67a24467d7114ba533f4e049
https://doi.org/10.1117/12.2323106
https://doi.org/10.1117/12.2323106
Autor:
Demetrios N. Christodoulides, Nicholas S. Nye, Christine D. Keating, Cheng-Yu Wang, Chenji Zhang, Philip P. Donahue, Rong Tang, Jennifer L. Miller, Zhiwen Liu
Publikováno v:
ACS nano. 12(7)
Top-down fabrication is commonly used to provide positioning control of optical structures; yet, it places stringent limitations on component materials, and oftentimes, dynamic reconfigurability is challenging to realize. Here, we present a reconfigu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8382b7c556567440341e3d4ab0fd47a
https://pubmed.ncbi.nlm.nih.gov/29949714
https://pubmed.ncbi.nlm.nih.gov/29949714
We find exact solutions describing bidirectional pulses propagating in fiber Bragg gratings. They are derived by solving the coupled-mode theory equations and are expressed in terms of products of modified Bessel functions with algebraic functions. D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21a9536e53beb1b7a0d992658f8f6df5
http://arxiv.org/abs/1709.09977
http://arxiv.org/abs/1709.09977