Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Felix J. Lawrence"'
Autor:
Björn C. P. Sturmberg, Kokou B. Dossou, Christopher G. Poulton, Felix J. Lawrence, Ross C. McPhedran, C. Martijn de Sterke, Lindsay C. Botten
Publikováno v:
Computer Physics Communications. 202:276-286
We describe EMUstack, an open-source implementation of the Scattering Matrix Method (SMM) for solving field problems in layered media. The fields inside nanostructured layers are described in terms of Bloch modes that are found using the Finite Eleme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bcca0f6ede9b5b7bffc5ae08cfe6686
https://doi.org/10.1016/j.cpc.2015.12.022
https://doi.org/10.1016/j.cpc.2015.12.022
We present a semi-analytic method to calculate the dispersion curves and the group velocity of photonic crystal waveguide modes in two-dimensional geometries. We model the waveguide as a homogenous strip, surrounded by photonic crystal acting as diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e866f3b9ad8e4536d626eb2e3991e942
http://arxiv.org/abs/1202.6426
http://arxiv.org/abs/1202.6426
Autor:
Sahand Mahmoodian, J. Scott Brownless, Kokou B. Dossou, Felix J. Lawrence, Lindsay C. Botten, C. Martijn de Sterke
We present a semi-analytical formulation for calculating the supermodes and corresponding Bloch factors of light in hexagonal lattice photonic crystal waveguide arrays. We then use this formulation to easily calculate dispersion curves and predict pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::903e276417c4e5254a5a3038b28dec7a
https://hdl.handle.net/10453/29352
https://hdl.handle.net/10453/29352
Autor:
Ross C. McPhedran, C. Martijn de Sterke, Felix J. Lawrence, Lindsay C. Botten, Kokou B. Dossou
We present a flexible method that can calculate Bloch modes, complex band structures, and impedances of two-dimensional photonic crystals from scattering data produced by widely available numerical tools. The method generalizes previous work which re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26be1a4638698e74754956f043e63b41
https://hdl.handle.net/10453/17953
https://hdl.handle.net/10453/17953
Autor:
Felix J. Lawrence, Sahand Mahmoodian, Kokou B. Dossou, C. Martijn de Sterke, J. S. Brownless, Lindsay C. Botten
Publikováno v:
2011 International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology.
We consider discrete diffraction in coupled photonic crystal waveguides in a hexagonal lattice. We show that in these structures the (discrete) diffraction coefficient depends strongly on frequency and can even change sign. This behavior does not occ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d9141c5a57ac2751473460b4013d177
https://doi.org/10.1109/iqec-cleo.2011.6193959
https://doi.org/10.1109/iqec-cleo.2011.6193959
Autor:
Kokou B. Dossou, Ross C. McPhedran, Lindsay C. Botten, C. Martijn de Sterke, Felix J. Lawrence
Publikováno v:
Physical Review A. 83
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dee887c386fb58ddff48e8aa46866d6
https://doi.org/10.1103/physreva.83.029907
https://doi.org/10.1103/physreva.83.029907
Publikováno v:
Scopus-Elsevier
We present a systematic theoretical method to design PC waveguides with low or zero group velocities. Our method is based on separating the PC mirror from the waveguide, which enabled us to derive an analytical expression for the group velocity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce9f21f0021baaa69fd59568c6606695
https://doi.org/10.1364/fio.2011.fthn6
https://doi.org/10.1364/fio.2011.fthn6
Autor:
Lindsay C. Botten, Kokou B. Dossou, Felix J. Lawrence, Sahand Mahmoodian, J. Scott Brownless, C. Martijn de Sterke
Publikováno v:
Optics express. 18(24)
We investigate the modes of coupled waveguides in a hexagonal photonic crystal. We find that for a substantial parameter range the coupled waveguide modes have dispersion relations exhibiting multiple intersections, which we explain both intuitively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::291ad662e6bcad53997f99466315eb3d
https://pubmed.ncbi.nlm.nih.gov/21164883
https://pubmed.ncbi.nlm.nih.gov/21164883
Autor:
C. Martijn de Sterke, Lindsay C. Botten, Kokou B. Dossou, Felix J. Lawrence, Ross C. McPhedran
Publikováno v:
35th Australian Conference on Optical Fibre Technology.
We propose a method for photonic crystal (PC) homogenisation based on the PC's Bloch modes. The resulting quantities may be used in Snell's law; to calculate reflections, transmissions, and propagation; and to locate surface modes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa0732a63552af4489e595e854a238b2
https://doi.org/10.1109/acoft.2010.5929917
https://doi.org/10.1109/acoft.2010.5929917
Publikováno v:
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference.
We rigorously define an impedance for photonic crystals, which generally needs to be a matrix. We use it to design a two-layer anti-reflection coating for a frequency where the bulk crystal reflects over 50%.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8e345c3020a228a4c5f9b58d429efe6
https://doi.org/10.1364/cleo.2009.jthe110
https://doi.org/10.1364/cleo.2009.jthe110