Search

Your search keyword '"Grange, Rachel"' showing total 387 results
Start Over Author "Grange, Rachel"
387 results on '"Grange, Rachel"'

101. How to organize an online conference

Author

Reshef, Orad, primary, Aharonovich, Igor, additional, Armani, Andrea M., additional, Gigan, Sylvain, additional, Grange, Rachel, additional, Kats, Mikhail A., additional, and Sapienza, Riccardo, additional

Published
2020
Full Text
View/download PDF

106. Multipolar analysis of second-harmonic generation in GaAs nanoparticles grown along different crystallographic directions

Author

Volkovskaya, Irina, primary, Smirnova, Daria A., additional, Xu, Lei, additional, Saerens, Grégoire, additional, Timofeeva, Maria, additional, Lysevych, Mykhaylo, additional, Camacho-Morales, Rocio, additional, Cai, Marcus, additional, Kamali, Khosro Zangeneh, additional, Huang, Lujun, additional, Karouta, Fouad, additional, Tan, H. Hoe, additional, Jagadish, Chennupati, additional, Miroshnichenko, Andrey E., additional, Grange, Rachel, additional, Neshev, Dragomir N., additional, and Rahmani, Mohsen, additional

Published
2020
Full Text
View/download PDF

107. Switchable unidirectional second-harmonic emission through GaAs nanoantennas

Author

Xu, Lei, primary, Saerens, Grégoire, additional, Timofeeva, Maria, additional, Miroshnichenko, Andrey E., additional, Camacho-Morales, Rocio, additional, Volkovskaya, Irina, additional, Smirnova, Daria A., additional, Lysevych, Mykhaylo, additional, Huang, Lujun, additional, Cai, Marcus, additional, Karouta, Fouad, additional, Tan, H. Hoe, additional, Kauranen, Martti, additional, Jagadish, Chennupati, additional, Grange, Rachel, additional, Neshev, Dragomir N., additional, and Rahmani, Mohsen, additional

Published
2019
Full Text
View/download PDF

108. Forward and Backward Switching of Nonlinear Unidirectional Emission from GaAs Nanoantennas

Author

Xu, Lei, primary, Saerens, Grégoire, additional, Timofeeva, Maria, additional, Smirnova, Daria A., additional, Volkovskaya, Irina, additional, Lysevych, Mykhaylo, additional, Camacho-Morales, Rocio, additional, Cai, Marcus, additional, Zangeneh Kamali, Khosro, additional, Huang, Lujun, additional, Karouta, Fouad, additional, Tan, Hark Hoe, additional, Jagadish, Chennupati, additional, Miroshnichenko, Andrey E., additional, Grange, Rachel, additional, Neshev, Dragomir N., additional, and Rahmani, Mohsen, additional

Published
2019
Full Text
View/download PDF

109. Tunable 2D binary colloidal alloys for soft nanotemplating

Author

Fernández-Rodríguez, Miguel Ángel, Elnathan, Roey, Ditcovski, Ran, Grillo, Fabio, Conley, Gaurasundar Marc, Timpu, Flavia, Rauh, Astrid, Geisel, Karen, Ellenbogen, Tal, Grange, Rachel, Scheffold, Frank, Karg, Matthias, Richtering, Walter, Voelcker, Nicolas H., and Isa, Lucio

Abstract

The realization of non-close-packed nanoscale patterns with multiple feature sizes and length scales via colloidal self-assembly is a highly challenging task. We demonstrate here the creation of a variety of tunable particle arrays by harnessing the sequential self-assembly and deposition of two differently sized microgel particles at the fluid–fluid interface. The two-step process is essential to achieve a library of 2D binary colloidal alloys, which are kinetically inaccessible by direct co-assembly. These versatile binary patterns can be exploited for a range of end-uses. Here we show that they can for instance be transferred to silicon substrates, where they act as masks for the metal-assisted chemical etching of binary arrays of vertically aligned silicon nanowires (VA-SiNWs) with fine geometrical control. In particular, continuous binary gradients in both NW spacing and height can be achieved. Notably, these binary VA- SiNW platforms exhibit interesting anti-reflective properties in the visible range, in agreement with simulations. The proposed strategy can also be used for the precise placement of metallic nanoparticles in non-close-packed arrays. Sequential depositions of soft particles enable therefore the exploration of complex binary patterns, e.g. for the future development of substrates for biointerfaces, catalysis and controlled wetting.

Published
2019

111. Second-harmonic generation from metal oxide metasurfaces and photonic crystals

Author

Timpu, Flavia, Vogler-Neuling, Viola V., Grange, Rachel, Zouhdi, Said, and Topa, Antonio

Subjects
Physics::Atomic and Molecular Clusters, Physics::Optics, Physics::Classical Physics
Abstract

Proceedings of META 2019, The 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics

Published
2019

112. Metal-Dielectric Nanodimers with Hybridized Resonances Probed by Second-Harmonic Polarization

Author

Renaut, Claude, Lang, Lukas, Frizyuk, Kristina, Timofeeva, Maria, Petrov, Mihail I., Komissarenko, Filipp, Mukhin, I. S., Timpu, Flavia, Kivshar, Yuri, Grange, Rachel, Renaut, Claude, Lang, Lukas, Frizyuk, Kristina, Timofeeva, Maria, Petrov, Mihail I., Komissarenko, Filipp, Mukhin, I. S., Timpu, Flavia, Kivshar, Yuri, and Grange, Rachel

Abstract

We fabricate hybrid nanodimers made of gold and barium titanate nanoparticles by a pick-and-place technique. By overlapping their resonances, we achieve 100-times enhancement of the second-harmonic signal at the hybridized mode while reshaping its polarization.

Published
2019

113. Reshaping the Second-Order Polar Response of Hybrid Metal-Dielectric Nanodimers

Author

Renaut, Claude, Lang, Lukas, Frizyuk, Kristina, Timofeeva, Maria, Komissarenko, Filipp, Mukhin, I. S., Smirnova, Daria, Timpu, Flavia, Petrov, Mihail I, Kivshar, Yuri, Grange, Rachel, Renaut, Claude, Lang, Lukas, Frizyuk, Kristina, Timofeeva, Maria, Komissarenko, Filipp, Mukhin, I. S., Smirnova, Daria, Timpu, Flavia, Petrov, Mihail I, Kivshar, Yuri, and Grange, Rachel

Abstract

We combine the field confinement of plasmonics with the flexibility of multiple Mie resonances by bottom-up assembly of hybrid metal-dielectric nanodimers. We investigate the electromagnetic coupling between nanoparticles in heterodimers consisting of gold and barium titanate (BaTiO3 or BTO) nanoparticles through nonlinear second-harmonic spectroscopy and polarimetry. The overlap of the localized surface plasmon resonant dipole mode of the gold nanoparticle with the dipole and higher-order Mie resonant modes in the BTO nanoparticle lead to the formation of hybridized modes in the visible spectral range. We employ the pick-and-place technique to construct the hybrid nanodimers with controlled diameters by positioning the nanoparticles of different types next to each other under a scanning electron microscope. Through linear scattering spectroscopy, we observe the formation of hybrid modes in the nanodimers. We show that the modes can be directly accessed by measuring the dependence of the second-harmonic generation (SHG) signal on the polarization and wavelength of the pump. We reveal both experimentally and theoretically that the hybridization of plasmonic and Mie-resonant modes leads to a strong reshaping of the SHG polarization dependence in the nanodimers, which depends on the pump wavelength. We compare the SHG signal of each hybrid nanodimer with the SHG signal of single BTO nanoparticles to estimate the enhancement factor due to the resonant mode coupling within the nanodimers. We report up to 2 orders of magnitude for the SHG signal enhancement compared with isolated BTO nanoparticles.

Published
2019

115. An integrated broadband spectrometer on thin-film lithium niobate

Author

Pohl, David, primary, Reig Escalé, Marc, additional, Madi, Mohammad, additional, Kaufmann, Fabian, additional, Brotzer, Peter, additional, Sergeyev, Anton, additional, Guldimann, Benedikt, additional, Giaccari, Philippe, additional, Alberti, Edoardo, additional, Meier, Urs, additional, and Grange, Rachel, additional

Published
2019
Full Text
View/download PDF

123. Polarized Nonlinear Nanoscopy in Barium Titanate Nanoparticles

Author

Rendón Barraza, Carolina, Timpu, Flavia, grange, rachel, Brasselet, Sophie, MOSAIC (MOSAIC), Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), and Brasselet, Sophie

Subjects
[SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

132. Tunable 2D binary colloidal alloys for soft nanotemplating

Author

Fernández-Rodríguez, Miguel Ángel, primary, Elnathan, Roey, additional, Ditcovski, Ran, additional, Grillo, Fabio, additional, Conley, Gaurasundar Marc, additional, Timpu, Flavia, additional, Rauh, Astrid, additional, Geisel, Karen, additional, Ellenbogen, Tal, additional, Grange, Rachel, additional, Scheffold, Frank, additional, Karg, Matthias, additional, Richtering, Walter, additional, Voelcker, Nicolas H., additional, and Isa, Lucio, additional

Published
2018
Full Text
View/download PDF

134. Polarized nonlinear nanoscopy in metal and ferroelectric nanostructures

Author

Rendon, Carolina, Naveen Kumar, Balla, Bermudez Ureña, Esteban, tumpu, flavia, Quidant, Romain, grange, rachel, Brasselet, Sophie, Institut de Ciencies Fotoniques [Castelldefels] (ICFO), MOSAIC (MOSAIC), Institut FRESNEL (FRESNEL), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)

Subjects
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2016

145. Switchable unidirectional second-harmonic emission through GaAs nanoantennas

Author

Mitchell, Arnan, Rubinsztein-Dunlop, Halina, Xu, Lei, Saerens, Grégoire, Timofeeva, Maria, Miroshnichenko, Andrey E., Camacho-Morales, Rocio, Volkovskaya, Irina, Smirnova, Daria A., Lysevych, Mykhaylo, Huang, Lujun, Cai, Marcus, Karouta, Fouad, Tan, H. Hoe, Kauranen, Martti, Jagadish, Chennupati, Grange, Rachel, Neshev, Dragomir N., and Rahmani, Mohsen

Published
2019
Full Text
View/download PDF

146. Plasmonic heating with near infrared resonance nanodot arrays for multiplexing optofluidic applications

Author

Steinbrück, Andrea, Choi, J.W., Fasold, Stefan, Menzel, Christoph, Sergeyev, Anton, Grange, Rachel, and Publica

Subjects
electron beam lithography, nanostructured materials, heating, plasmons, emission spectroscopy, crosstalk
Abstract

In this work, we show local laser-induced heating in fluids with gold nanodot arrays prepared by electron-beam lithography that cover resonances in the near infrared spectral range from 750 nm to 880 nm. We utilize two approaches to demonstrate thermal effects, solvent evaporation and flow stop, with a thermosensitive polymer solution. We show that with fluences as low as 4 ?J cm-2, significant heating of the nanostructures occurs in their immediate vicinity. We perform power and wavelength dependent measurements to determine the threshold of the thermal effects. Using wavelengths about 20 nm away from the plasmonic resonance peak, the heating drops drastically, and 30 to 40 nm away, there is mostly no thermal effect. Therefore, working close to the threshold laser power offers the possibility of multiplexed reactions or sensing without cross-talk even though a typical full width at half maximum of a plasmonic resonance spectrum can be as broad as 200 nm. Additionally, comparison with theoretical calculations of heat generation show good agreement with the experimentally determined threshold powers.

Published
2014

150. Relaxation time mapping of single quantum dots and substrate background fluorescence

Author

Pshenay-Severin, Ekaterina, Mukhin, Ivan S, Fasold, S., Geiss, Reinhard, Steinbruck, Andrea, Grange, Rachel, Chipouline, A., Pertsch, Thomas, Pshenay-Severin, Ekaterina, Mukhin, Ivan S, Fasold, S., Geiss, Reinhard, Steinbruck, Andrea, Grange, Rachel, Chipouline, A., and Pertsch, Thomas

Abstract

We experimentally investigated the role of background signal in time resolved photoluminescence experiments with single quantum dots on substrates. We show that the background fluorescence signal from thin gold films fabricated by electron-beam evaporation and from Al2O3 layers fabricated by atomic layer deposition have to be taken into consideration in experiments on the single photon level. Though all investigated components can be distinguished by their photoluminescence decay rates, the presence of the background signal prevents the observation of photon antibunching from single quantum dots. Moreover, a single quantum dot acts as a hot spot enabling the plasmon supported fluorescence enhancement of gold.

Published
2015

Catalog

Books, media, physical & digital resources
See catalog results