Results 81 to 90 of about 1,697,142 (245)

Influence of Fano resonance on SERS enhancement in Fano-plasmonic oligomers

Optics Express, 2019
Plasmonic oligomers can provide profound Fano resonance in their scattering responses. The sub-radiant mode of Fano resonance can result in significant near-field enhancement due to its light trapping capability into the so-called hotspots. Appearance of these highly localized hotspots at the excitation and/or Stokes wavelengths of the analytes makes ...
Alam, Khairul, Nuutinen, Tarmo, Hulkko, Eero, Karvinen, Petri, Kuittinen, Markku, Toppari, J. Jussi, Vartiainen, Erik, M., Dutta, Arpan   +8 more
openaire   +5 more sources

Engineering Fano resonances in discrete arrays [PDF]

Physical Review E, 2005
We study transmission properties of discrete arrays composed of a linear waveguide coupled to a system of side defect states. This simple system can be used to model discrete networks of coupled defect modes in photonic crystals, complex waveguide arrays in two-dimensional nonlinear lattices, and ring-resonator structures.
Miroshnichenko, Andrey, Kivshar, Yuri
openaire   +3 more sources

A Dual‐Channel Synergistic Ultrasensitive Biosensor for Tumor Liquid Biopsy

Advanced Science, EarlyView.
ABSTRACT Liquid biopsy technology, which detects circulating tumor DNA (ctDNA) in cerebrospinal fluid, plays a crucial role in the early diagnosis and precision treatment of gliomas. However, the intrinsically low abundance and rapid clearance of ctDNA pose substantial challenges for conventional analytical techniques, such as droplet digital PCR and ...
Yu Sun, Jing Zhang, Chenqing Liu, Jing Lou, Sihui Wang, Xiangtian Ji, Xiaofang Zhao, Shirui Xu, Jingyu Feng, Bin Liu, Chao Chang, Qinggang Ge, Jun Yang   +12 more
wiley   +1 more source

Beyond Conventional Sensing: Hybrid Plasmonic Metasurfaces and Bound States in the Continuum

Nanomaterials, 2023
Fano resonances result from the strong coupling and interference between a broad background state and a narrow, almost discrete state, leading to the emergence of asymmetric scattering spectral profiles.
Dominic Bosomtwi, Viktoriia E. Babicheva
doaj   +1 more source

Phase protection of Fano-Feshbach resonances [PDF]

Nature Communications, 2020
AbstractDecay of bound states due to coupling with free particle states is a general phenomenon occurring at energy scales from MeV in nuclear physics to peV in ultracold atomic gases. Such a coupling gives rise to Fano-Feshbach resonances (FFR) that have become key to understanding and controlling interactions—in ultracold atomic gases, but also ...
Alexander Blech, Yuval Shagam, Nicolas Hölsch, Prerna Paliwal, Wojciech Skomorowski, John W. Rosenberg, Natan Bibelnik, Oded Heber, Daniel M. Reich, Edvardas Narevicius, Christiane P. Koch   +10 more
openaire   +6 more sources

Observation of Excitonic Instability in a Monolayer Ta2NiSe5 With Strain Disorder

Advanced Science, EarlyView.
Monolayer Ta2${\rm Ta}_2$NiSe5${\rm NiSe}_5$ sustains an excitonic insulating phase up to 190 K, with Raman signatures of gap opening and critical excitonic fluctuations. Thickness‐independent large gap ratios highlight strong exciton‐phonon coupling, while substrate‐induced strain disorder depresses Tc, establishing monolayer Ta2${\rm Ta}_2$NiSe5${\rm
So Young Kim, Kwangrae Kim, Dowook Kim, Ji Eun Lee, Jieun Seok, Chang Il Kwon, Jo Hyun Yun, Chang‐Jong Kang, Jae Hoon Kim, H. W. Yeom, Tae‐Hwan Kim, Jonghwan Kim, B. J. Kim, Jun Sung Kim   +13 more
wiley   +1 more source

Multiple Fano Resonance Based Optical Refractive Index Sensor Composed Of Micro-Cavity and Micro-Structure

IEEE Photonics Journal, 2018
A multiple Fano resonance based optical refractive index sensor composed of micro-cavity and micro-structure is designed. The multiple Fano resonances, generated by the interference between the multiple resonant peaks produced by the micro-cavity and the
Yan Kong, Jianjun Cao, Wenchao Qian, Cheng Liu, Shouyu Wang   +4 more
doaj   +1 more source

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

Long‐Range Interactions in Topological Superconducting Systems: A Mini Review

Advanced Physics Research, EarlyView.
Long‐range interacting quantum systems are surveyed in this review, with an emphasis on the long‐range topological superconductor and its variants. Long‐range interactions decaying in a power‐law manner can lead to exotic phenomena that finds no analogue in short‐range regimes.
Juntong Ren, Haifeng Lü
wiley   +1 more source

Tuning Fano Resonances with Graphene [PDF]

, 2013
We demonstrate strong electrical control of plasmonic Fano resonances in dolmen structures using tunable interband transitions in graphene. Such graphene-plasmonic hybrid devices can have applications in light modulation and sensing.
Boltasseva, Alexandra, Yong P. Chen, Chen, Yong P., Chung, Ting-Fung, Alexander Kildishev, Prokopeva, Ludmila, Naresh K. Emani, Ludmila Prokopeva, Ting-Fung Chung, Emani, Naresh K., Kildishev, Alexander, Alexandra Boltasseva   +11 more
core   +1 more source