Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Fridtjof Betz"'
Publikováno v:
SoftwareX, Vol 26, Iss , Pp 101694- (2024)
The software RPExpand, implemented in MATLAB®, provides modal expansions of physical observables in resonant systems, based on contour integrals. Version 2.0 improves the workflow and adds new features. In addition to the poles corresponding to eige
Externí odkaz:
https://doaj.org/article/8c46a5c8d9cb41b98c8638707e7e4a81
Autor:
Felix Binkowski, Fridtjof Betz, Martin Hammerschmidt, Philipp-Immanuel Schneider, Lin Zschiedrich, Sven Burger
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-7 (2022)
Resonances are ubiquitous in physics and hold important functionalities in engineering wave propagation and interference effects. This work proposes an approach for computing sensitivities, i.e., partial derivatives, of complex eigenfrequencies in an
Externí odkaz:
https://doaj.org/article/1d9e63b757c54c3e9b338b7fb3d0ed67
Publikováno v:
SoftwareX, Vol 15, Iss , Pp 100763- (2021)
We present the software RPExpand for modal expansions of physical observables in resonant systems. The software is implemented in MATLAB® and uses Riesz projections to compute the expansion terms. The Riesz projection method is based on contour inte
Externí odkaz:
https://doaj.org/article/19462888e01c44c19c4d2387d5a401cd
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023189 (2022)
We study the effect of coupled resonances and quasibound states in the continuum (quasi-BICs) on the Purcell factor in dielectric resonant nanoantennas. We analyze numerically interfering resonances in a nanodisk with and without a substrate when the
Externí odkaz:
https://doaj.org/article/57c8039e4af34b889feeea4247f2c61a
Autor:
Kseniia Volkova, Julia Heupel, Sergei Trofimov, Fridtjof Betz, Rémi Colom, Rowan W. MacQueen, Sapida Akhundzada, Meike Reginka, Arno Ehresmann, Johann Peter Reithmaier, Sven Burger, Cyril Popov, Boris Naydenov
Publikováno v:
Nanomaterials, Vol 12, Iss 9, p 1516 (2022)
Nitrogen-vacancy (NV) color centers in diamond are excellent quantum sensors possessing high sensitivity and nano-scale spatial resolution. Their integration in photonic structures is often desired, since it leads to an increased photon emission and
Externí odkaz:
https://doaj.org/article/95481788256d4a36a0f40a195443b9ad
We present a numerical investigation of directly fiber-coupled hybrid circular Bragg gratings (CBGs) featuring electrical control for operation in the application relevant wavelength regimes around 930 nm as well as the telecom O- and C-band. We use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9839b31e5ab4b5dbca6224598936216
http://arxiv.org/abs/2212.04883
http://arxiv.org/abs/2212.04883
Resonance expansions are an intuitive approach to capture the interaction of an optical resonator with light. Here, we present a quasinormal mode expansion approach for quadratic observables exploiting the rigorous Riesz projection method. We demonst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::983241cf678b2b91e5149a14794e5f7c
Autor:
Rémi Colom, Martin Hammerschmidt, Felix Binkowski, Sven Burger, Fridtjof Betz, Lin Zschiedrich
Quasinormal mode (QNM) expansion is a popular tool to analyze light-matter interaction in nanoresonators. However, expanding far-field quantities such as the energy flux is an open problem because QNMs diverge with an increasing distance to the reson
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::442d250be8f1dfcf846925a9b38dc357
http://arxiv.org/abs/2003.11305
http://arxiv.org/abs/2003.11305
Autor:
Sven Burger, Lin Zschiedrich, Fridtjof Betz, Rémi Colom, Felix Binkowski, Martin Hammerschmidt
Publikováno v:
EPJ Web of Conferences, Vol 238, p 05008 (2020)
Many nanophotonic devices rely on the excitation of photonic resonances to enhance light-matter interaction. The understanding of the resonances is therefore of a key importance to facilitate the design of such devices. These resonances may be analyz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70030f9d66d710908f6389f14ab49db3
https://www.epj-conferences.org/articles/epjconf/pdf/2020/14/epjconf_eosam2020_05008.pdf
https://www.epj-conferences.org/articles/epjconf/pdf/2020/14/epjconf_eosam2020_05008.pdf
Autor:
Lin Zschiedrich, Martin Hammerschmidt, Sven Burger, Rémi Colom, Fridtjof Betz, Felix Binkowski
Publikováno v:
EPJ Web of Conferences, Vol 238, p 05007 (2020)
We discuss an approach for modal expansion of optical far-field quantities based on quasinormal modes (QNMs). The issue of the exponential divergence of QNMs is circumvented by contour integration of the far-field quantities involving resonance poles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0f255f3beb9322df534f288efd63919
https://www.epj-conferences.org/articles/epjconf/pdf/2020/14/epjconf_eosam2020_05007.pdf
https://www.epj-conferences.org/articles/epjconf/pdf/2020/14/epjconf_eosam2020_05007.pdf