Luiz H. G. Tizei, Mathieu Kociak, Hugo Lourenço-Marns, Romain Bourrellier, Alfredo Campos, Anna Tararan, Alberto Zobelli Alexandre Gloter, Xiaoyan Li, Jean-Denis Blazit, Marcel Ténce, Odile Stéphan Laboratoire de Physique des Solides – CNRS UMR 8502, Université Paris Sud, Orsay, France CEA –Grenoble, France Bruno Daudin, Bruno Gayral, Thomas Auzelle Lab. Aimé Coon, Orsay, France François Treussart IFGW, Campinas, Brazil Luiz. F Zagonel Academia Sinica, Taipei, Taiwan Huan-Cheng Chang FOM – Amsterdam, Netherlands Sophie Meuret Optical Spectroscopy at High Spatial Resolution with Fast Electrons Universidade de Vigo, Spain Luis Liz-Marzan Leonardo Scarabelli
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Optical Spectroscopy at High Spatial Resolution with Fast Electrons€¦ · Quantum optics at the nanoscale 8 Optics at the nanoscale Excitons in GaN QWs in AlN nanowires (CL) ChromaTEM
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Luiz H. G. Tizei, Mathieu Kociak, Hugo Lourenço-Martins, Romain Bourrellier, Alfredo Campos, Anna Tararan, Alberto Zobelli Alexandre Gloter, Xiaoyan Li, Jean-Denis Blazit, Marcel Ténce, Odile Stéphan
Laboratoire de Physique des Solides – CNRS UMR 8502, Université Paris Sud, Orsay, France
CEA –Grenoble, FranceBruno Daudin, Bruno Gayral, Thomas Auzelle
Lab. Aimé Cotton, Orsay, FranceFrançois Treussart
IFGW, Campinas, BrazilLuiz. F Zagonel
Academia Sinica, Taipei, TaiwanHuan-Cheng Chang
FOM – Amsterdam, NetherlandsSophie Meuret
Optical Spectroscopy at High Spatial Resolution with Fast Electrons
Universidade de Vigo, SpainLuis Liz-MarzanLeonardo Scarabelli
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Group leader: Prof. Odile Stéphan
Orsay
Paris
Group mostly dedicated to electron energy loss spectroscopy (but with increasing CL contribution)
STEM group – LPS, Orsay
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Plasmonics in metal particlesOxides
Ce OxidesProf. S. Y. Chen (NTUST)
Ag triangleL. Liz-Marzan, Spain
FeTiO Dumont, France
PTO/STOTriscone, Switzerland
Group focus: fast electron nanospectroscopies
2D materialshBNProf. Taniguchi (NIMS, Japan)
WSe2
Prof. Ho (NTUST, Taipei)
Motivation
Optical spectroscopy
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Photons Electrons
Plasmons in Ag spheres
N. Yamamoto, et al Phys. Rev. B, 64 205419 (2001)
230 nm
Absorption of excitons in WSe2
A. D. Yoffe,, et al Adv. Phys. , 51 799 (2002)
Motivation
Fast Electrons
Perfect tool to study atom/nm-scale objects
Single Atoms
Including structural and spectroscopic information
Single atom identification
CL of plasmonsDefects
K. Suenaga, et al, Science 290 2280 (2000)
J. Wall, et al, PNAS 71 1 (1974)
5 nm
Plasmons
N. Yamamoto, et al Phys. Rev. B, 64 205419 (2001)
230 nm
C. L. Johnson, et al, Nat. Mat. 7 120 (2008)
Nanostructures
GaAs QW
P. E. Batson, et al, PRB 49 936 (1982)
5Optical properties of nanoscale
or atomic scale objects
Motivation
Light output/input from the electron microscopeand EELS