Timur Shegai

Docent at Chalmers, Physics, Bionanophotonics

We are interested in plasmon-exciton interactions, strong coupling, surface-enhanced phenomena such as SERS and fluorescence, quantum and low temperature plasmonics, directional nanoantennas, plasmonic nanowires and various types of sensing. Our experimental work encompasses single-particle/single-molecule microscopy and spectroscopy, angle-resolved or so-called Fourier imaging, nanofabrication and electron microscopy.The webpage of the Shegai Group can be found here:http://www.chalmers.se/en/departments/physics/research/bionanophotonics/Pages/ShegaiGroup.aspx

Source: chalmers.se

Showing 32 publications

2018

Molecule signatures in photoluminescence spectra of transition metal dichalcogenides

Maja Feierabend, Gunnar Berghäuser, Malte Selig et al
Physical Review Materials. Vol. 2 (1)
Journal article
2018

Quantum description and emergence of nonlinearities in strongly coupled single-emitter nanoantenna systems

Benjamin Rousseaux, Denis Baranov, Mikael Käll et al
PHYSICAL REVIEW B. Vol. 98 (4)
Journal article
2018

Observation of Tunable Charged Exciton Polaritons in Hybrid Monolayer WS<inf>2</inf>-Plasmonic Nanoantenna System

Jorge Cuadra, Denis Baranov, Martin Wersäll et al
Nano Letters. Vol. 18 (3), p. 1777-1785
Journal article
2018

Suppression of photo-oxidation of organic chromophores by strong coupling to plasmonic nanoantennas

Battulga Munkhbat, Martin Wersäll, Denis Baranov et al
Science advances. Vol. 4 (7)
Journal article
2018

Strong Light-Matter Coupling between Plasmons in Individual Gold Bi-pyramids and Excitons in Mono- and Multilayer WSe2

Michael Stührenberg, Battulga Munkhbat, Denis Baranov et al
Nano Letters. Vol. 18 (9), p. 5938-5945
Journal article
2018

Strong Plasmon-Exciton Coupling with Directional Absorption Features in Optically Thin Hybrid Nanohole Metasurfaces

Evan S. H. Kang, Shangzhi Chen, Samim Sardar et al
ACS Photonics. Vol. 5 (10), p. 4046-4064
Journal article
2018

Tunable Hybrid Fano Resonances in Halide Perovskite Nanoparticles

Ekaterina Y. Tiguntseva, Denis Baranov, Anatoly P. Pushkarev et al
Nano Letters. Vol. 18 (9), p. 5522-5529
Journal article
2018

Collective Strong Light-Matter Coupling in Hierarchical Microcavity-Plasmon-Exciton Systems

Ankit Bisht, Jorge Cuadra, Martin Wersäll et al
Nano Letters
Journal article
2018

Novel Nanostructures and Materials for Strong Light-Matter Interactions

Denis Baranov, Martin Wersäll, Jorge Cuadra et al
ACS Photonics. Vol. 5 (1), p. 24-42
Review article
2018

Self-Hybridized Exciton-Polaritons in Multilayers of Transition Metal Dichalcogenides for Efficient Light Absorption

Battulga Munkhbat, Denis Baranov, Michael Stührenberg et al
ACS Photonics. Vol. 6 (1), p. 139-147
Journal article
2017

Observation of Mode Splitting in Photoluminescence of Individual Plasmonic Nanoparticles Strongly Coupled to Molecular Excitons

Martin Wersäll, Jorge Cuadra, Tomasz Antosiewicz et al
Nano Letters. Vol. 17 (1), p. 551-558
Journal article
2017

Coherent perfect absorbers: Linear control of light with light

Denis Baranov, A. E. Krasnok, Timur Shegai et al
Nature Reviews Materials. Vol. 2
Journal article
2017

Hybrid dielectric waveguide spectroscopy of individual plasmonic nanoparticles

Jorge Cuadra, Ruggero Verre, Martin Wersäll et al
AIP Advances. Vol. 7 (7), p. Article no: 075207 -
Journal article
2016

Evaluating Conditions for Strong Coupling between Nanoparticle Plasmons and Organic Dyes Using Scattering and Absorption Spectroscopy

Gülis Zengin, Tina Gschneidtner, Ruggero Verre et al
Journal of Physical Chemistry C. Vol. 120 (37), p. 20588-20596
Journal article
2016

Role of material loss and mode volume of plasmonic nanocavities for strong plasmon-exciton interactions

Zhong-Jian Yang, Tomasz Antosiewicz, Timur Shegai
Optics Express. Vol. 24 (18), p. 20373-20381
Journal article
2015

Dimer-on-mirror SERS substrates with attogram sensitivity fabricated by colloidal lithography

Aron Hakonen, Mikael Svedendahl, Robin Ogier et al
Nanoscale. Vol. 7 (21), p. 9405-9410
Journal article
2015

Optical Magnetism and Plasmonic Fano Resonances in Metal Insulator-Metal Oligomers

Ruggero Verre, Zhong-Jian Yang, Timur Shegai et al
Nano Letters. Vol. 15 (3), p. 1952-1958
Journal article
2015

Realizing Strong Light-Matter Interactions between Single-Nanoparticle Plasmons and Molecular Excitons at Ambient Conditions

Gülis Zengin, Martin Wersäll, Sara Nilsson et al
Physical Review Letters. Vol. 114 (15), p. Art. no. 157401-
Journal article
2014

Quasi-isotropic Surface Plasmon Polariton Generation through Near-Field Coupling to a Penrose Pattern of Silver Nanoparticles

Ruggero Verre, Tomasz Antosiewicz, Mikael Svedendahl et al
ACS Nano. Vol. 8 (9), p. 9286-9294
Journal article
2014

Plasmon-Exciton Interactions in a Core-Shell Geometry: From Enhanced Absorption to Strong Coupling

Tomasz Antosiewicz, Peter Apell, Timur Shegai
ACS Photonics. Vol. 1 (5), p. 454-463
Journal article
2014

Directional Nanoplasmonic Antennas for Self-Referenced Refractometric Molecular Analysis

Martin Wersäll, Ruggero Verre, Mikael Svedendahl et al
Journal of Physical Chemistry C. Vol. 118 (36), p. 21075-21080
Journal article
2013

Approaching the strong coupling limit in single plasmonic nanorods interacting with J-aggregates

Gülis Zengin, Göran Johansson, Peter Johansson et al
Scientific Reports. Vol. 3
Journal article
2013

Plasmonic nanoantennas for SERS, directional light, sensing and strong coupling

Gülis Zengin, Vladimir Miljkovic, Peter Johansson et al
International Conference on Transparent Optical Networks
Paper in proceedings
2012

Directional Scattering and Hydrogen Sensing by Bimetallic Pd-Au Nanoantennas

Timur Shegai, Peter Johansson, Christoph Langhammer et al
Nano Letters. Vol. 12 (5), p. 2464-2469
Journal article
2012

Simulating light scattering from supported plasmonic nanowires

Vladimir Miljkovic, Timur Shegai, Peter Johansson et al
Optics Express. Vol. 20 (10), p. 10816-10826
Journal article
2011

Angular Distribution of Surface-Enhanced Raman Scattering from Individual Au Nanoparticle Aggregates

Timur Shegai, Björn Brian, Vladimir Miljkovic et al
ACS Nano. Vol. 5 (3), p. 2036-2041
Journal article
2011

Mode-specific directional emission from hybridized particle-on-a-film plasmons

Vladimir Miljkovic, Timur Shegai, Mikael Käll et al
Optics Express. Vol. 19 (14), p. 12856-12864
Journal article
2011

Unidirectional Broadband Light Emission from Supported Plasmonic Nanowires

Timur Shegai, Vladimir Miljkovic, K. Bao et al
Nano Letters. Vol. 11 (2), p. 706-711
Journal article
2011

A bimetallic nanoantenna for directional colour routing

Timur Shegai, Si Chen, Vladimir Miljkovic et al
Nature Communications. Vol. 2 (1)
Journal article
2011

Hydride formation in single Palladium and Magnesium nanoparticles studied by nanoplasmonic dark field scattering spectroscopy

Timur Shegai, Christoph Langhammer
Advanced Materials. Vol. 23 (38), p. 4409-4414
Journal article
2010

Coloring fluorescence emission with silver nanowires

Timur Shegai, Y. Z. Huang, H. X. Xu et al
Applied Physics Letters. Vol. 96 (10), p. 103114 - 103114-3-
Journal article
2009

Raman spectroelectrochemistry of molecules within individual electromagnetic hot spots

Timur Shegai, Alexander Vaskevich, Israel Rubinstein et al
Journal of the American Chemical Society. Vol. 131 (40), p. 14392-14398
Journal article

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Showing 4 research projects

2018–2021

Stark plasmon-exciton koppling för effektiva foton-foton interaktioner

Timur Shegai Bionanophotonics
Swedish Research Council (VR)

2017–2022

Kvantplasmonik – en teknologi för foton-fotonväxelverkan på kvantnivå vid rumstemperatur

Göran Johansson Applied Quantum Physics
Mikael Käll Bionanophotonics
Timur Shegai Bionanophotonics
Swedish Research Council (VR)

2016–2018

Möjliggöra kvantoptik vid rumstemperatur via plasmoner

Timur Shegai Bionanophotonics
Stiftelsen Olle Engkvist Byggmästare

2013–2016

Hybrid optical antennas for effective quantum light sources

Timur Shegai Bionanophotonics
Swedish Research Council (VR)

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