Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Christoph Dreser"'
Autor:
Godofredo Bautista, Xiaorun Zang, Dominik A. Gollmer, Christoph Dreser, Martti Kauranen, Monika Fleischer, Dieter P. Kern
Publikováno v:
Nanoscale. 11:5429-5440
We investigate mode conversion in 3D asymmetric nanocones using angle-dependent linear optical spectroscopy and second-harmonic generation microscopy supported by corresponding simulations. The results prove the efficient excitation of the plasmonic
Autor:
Dieter P. Kern, Christoph Dreser, Martti Kauranen, Dai Zhang, Monika Fleischer, Alfred J. Meixner, Godofredo Bautista, Dominik A. Gollmer, Xiaorun Zang, Emre Gürdal, Anke Horneber
Publikováno v:
EPJ Web of Conferences, Vol 238, p 05001 (2020)
Frequency conversion plays an important role in both fundamental and applied nano-optics. Doubling the frequency of light by second harmonic generation (SHG) is a vital process e.g. in laser optics or high-resolution microscopy. SHG can be created th
Autor:
Martti Kauranen, Christoph Dreser, Monika Fleischer, Godofredo Bautista, Dieter P. Kern, Xiaorun Zang
Publikováno v:
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Collective effects in assemblies of plasmonic nanostructures are attracting widespread interest. Such effects are governed by the interactions among the constituents of the overall structure, providing an alternative path to modify plasmon resonances
Autor:
Monika Fleischer, Christoph Dreser, Martti Kauranen, Dieter P. Kern, Xiaorun Zang, Godofredo Bautista
Publikováno v:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVI.
Autor:
Martti Kauranen, Christoph Dreser, Dieter P. Kern, Monika Fleischer, Godofredo Bautista, Xiaorun Zang
Publikováno v:
Nano letters. 18(4)
We investigate collective effects in plasmonic oligomers of different symmetries using second-harmonic generation (SHG) microscopy with cylindrical vector beams (CVBs). The oligomers consist of gold nanorods that have a longitudinal plasmon resonance
Autor:
Godofredo Bautista, Martti Kauranen, Dieter P. Kern, Xiaorun Zang, Christoph Dreser, Monika Fleischer
We use cylindrical vector beams to investigate second-harmonic generation from rotationally symmetric arrangements of plasmonic nanoholes. The second-harmonic efficiency is shown to depend strongly on collective interactions between the nanoholes. ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a54e9f912faab01074d844a8c9632e90
https://trepo.tuni.fi/handle/10024/129311
https://trepo.tuni.fi/handle/10024/129311
Publikováno v:
Nanotechnology. 30:235302
Milling with the focused helium ion beam of a helium ion microscope is one of the most accurate ways to produce nano-structures such as plasmonic nanoantennas. In addition to good and immediate control of the dimensions, features in the sub-10 nm reg
Autor:
Dieter P. Kern, Xiaorun Zang, Monika Fleischer, Martti Kauranen, Jouni Mäkitalo, Christoph Dreser, Godofredo Bautista
Publikováno v:
Tampere University
We prepare metal oligomers whose structure is matched to the local polarization of focused cylindrical vector beams. Significant collective second-harmonic signals prove the potential of such beams in engineering nonlinear effects on the nanoscale.
Autor:
Monika Fleischer, Markku Sopanen, Antti Isomäki, Ali Shah, Nagarajan Subramaniyam, Christoph Dreser
Publikováno v:
Applied Physics Letters. 112:233109
We demonstrate linear and nonlinear plasmonic behaviors of periodic nanohole arrays in thin gold (Au) films with varying periodicities. As expected, the linear optical transmission spectra of the nanohole arrays show a red-shift of the resonance wave
Publikováno v:
Nanotechnology; 6/7/2019, Vol. 30 Issue 23, p1-1, 1p