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We describe the Fano asymmetry by expanding the transmission amplitude with respect to states with point spectra (discrete eigenstates), including not only bound states but also resonant states with complex eigenvalues. We first introduce a…

介观与纳米尺度物理 · 物理学 2019-05-30 Naomichi Hatano , Gonzalo Ordonez

We explain the Fano peak (an asymmetric resonance peak) as an interference effect involving resonant states. We reveal that there are three types of Fano asymmetry according to their origins: the interference between a resonant state and an…

介观与纳米尺度物理 · 物理学 2015-04-08 Keita Sasada , Naomichi Hatano , Gonzalo Ordonez

Systems with coupled cavities and waveguides have been demonstrated as optical switches and optical sensors. To optimize the functionalities of these optical devices, Fano resonance with asymmetric and steep spectral line shape has been…

光学 · 物理学 2016-12-06 Yanhui Zhao , Chenjiang Qian , Kangsheng Qiu , Jing Tang , Yue Sun , Kuijuan Jin , Xiulai Xu

We show that, nonlinear optical processes of nanoparticles can be controlled by the presence of interactions with a molecule or a quantum dot. By choosing the appropriate level spacing for the quantum emitter, one can either suppress or…

介观与纳米尺度物理 · 物理学 2014-09-22 Deniz Turkpence , Gursoy B. Akguc , Alpan Bek , Mehmet Emre Tasgin

We present a theoretical study of Fano interference effects in few-photon transport. Under appropriate conditions, a local defect in an optical waveguide induces a highly asymmetric transmission lineshape, characteristic of Fano…

量子物理 · 物理学 2020-07-01 Kristoffer B. Joanesarson , Jake Iles-Smith , Mikkel Heuck , Jesper Mørk

Nowadays nanotechnology allows to scale-down various important devices (sensors, chips, fibres, etc), and, thus, opens up new horizon for their applications. Nevertheless, the efficiency most of them is still based on the fundamental…

材料科学 · 物理学 2010-08-13 Andrey E. Miroshnichenko , Sergej Flach , Yuri S. Kivshar

The electron transport through a quantum sphere with three one-dimensional wires attached to it is investigated. An explicit form for the transmission coefficient as a function of the electron energy is found from the first principles. The…

介观与纳米尺度物理 · 物理学 2007-05-23 V. A. Margulis , M. A. Pyataev

We demonstrate that the integration of a phase-change material (PCM) in one of the two microresonators of a photonic metamolecule, coupled to a bus waveguide, can lead to unidirectional Fano resonances and to the emergence of a…

光学 · 物理学 2018-11-14 Roney Thomas , Eleana Makri , Tsampikos Kottos , Boris Shapiro , Ilya Vitebskiy

Electromagnetically induced transparency has the unique ability to optically control transparency windows with low light in atomic systems. However, its practical applications in quantum physics and information science are limited due to…

Our series of recent work on the transmission coefficient of open quantum systems in one dimension will be reviewed. The transmission coefficient is equivalent to the conductance of a quantum dot connected to leads of quantum wires. We will…

介观与纳米尺度物理 · 物理学 2015-04-08 Naomichi Hatano , Gonzalo Ordonez

We examine quantum interference effects due to absorption and emission from multiple atoms coupled to a waveguide and highlight the modifications they entail in regards to single-photon transport properties. A prominent upshot of these…

光学 · 物理学 2019-07-17 Debsuvra Mukhopadhyay , Girish S. Agarwal

We have observed asymmetric Fano resonances in the conductance of a single electron transistor resulting from interference between a resonant and a nonresonant path through the system. The resonant component shows all the features typical…

介观与纳米尺度物理 · 物理学 2009-10-31 J. Goeres , D. Goldhaber-Gordon , S. Heemeyer , M. A. Kastner , Hadas Shtrikman , D. Mahalu , U. Meirav

Fano resonances appear in quantum mechanical as well as classical systems as a result of the interference between two paths: one involving a discrete resonance and the other a continuum. Compared to a conventional resonance, characterized…

We address Fano-like interference effects in scanning tunneling microscopy (STM) measurements of nanoscale systems, e.g. two-level systems. Common for these systems is that second order tunneling contributions give rise to interference…

介观与纳米尺度物理 · 物理学 2007-07-18 J. Fransson

As the Fano effect is an interference phenomenon where tunneling paths compete for the electronic transport, it becomes a probe to catch fingerprints of Majorana fermions lying on condensed matter systems. In this work we benefit of this…

介观与纳米尺度物理 · 物理学 2014-11-11 F. A. Dessotti , L. S. Ricco , M. de Souza , F. M. Souza , A. C. Seridonio

We analyze conductance of a two-leg ladder connected with fermionic reservoirs, focusing on the decoherence effect induced by the reservoirs. In the absence of decoherence the system exhibits both bound states in the continuum and Fano…

其他凝聚态物理 · 物理学 2024-12-16 P. S. Muraev , D. N. Maksimov , A. R. Kolovsky

We show the existence of Fano resonances in the context of near-field radiative heat transfer, which enable the strong suppression and enhancement of the spectral heat flux at specific wavelengths. This is demonstrated by making use of the…

介观与纳米尺度物理 · 物理学 2017-11-22 Jaime E Perez Rodriguez , Giuseppe Pirruccio , Raul Esquivel-Sirvent

We show that Fano resonance in the decay channels of a three-level system can lead to considerably absorption enhancement and emission suppression. We found that a coherence built up in the ground doublet states, with strength depending on…

光学 · 物理学 2018-12-21 Dong Sun , Hui Long , Hongyi Lin , Yuri Rostovtsev

We show that the frequency spectrum of two dimensional photonic crystals is strongly influenced by Fano resonances which can be excited already in the linear array of dielectric cylinders. To support this claim, we calculate the…

材料科学 · 物理学 2015-10-28 Peter Markos

A strong optical nonlinearity arises when coherent light is scattered by a semiconductor quantumdot (QD) coupled to a nano-photonic waveguide. We exploit the Fano effect in such a waveguide to control the phase of the quantum interference…

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