Optical and thermal imaging of nanostructures with a scanning fluorescent particle as a probe. Near-field experiments : ESPCI, Paris, France Lionel Aigouy, Benjamin Samson Samples : IEF, Orsay, France Gwénaelle Julié, Véronique Mathet TIMA, Grenoble, France Benoît Charlot LAAS, Toulouse, France Christian Bergaud LPS, Orsay, France Rosella Latempa, Marco Aprili Fluorescent particles : ENSCP, Paris, France Michel Mortier
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Optical and thermal imaging of nanostructures with a scanning fluorescent particle as a probe.
Optical and thermal imaging of nanostructures with a scanning fluorescent particle as a probe. Near-field experiments : ESPCI, Paris, FranceLionel Aigouy, Benjamin Samson Samples : IEF, Orsay, France Gwénaelle Julié, Véronique Mathet TIMA, Grenoble, FranceBenoît Charlot - PowerPoint PPT Presentation
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Optical and thermal imaging of nanostructures with a scanning fluorescent particle as a probe.
Near-field experiments :
ESPCI, Paris, France Lionel Aigouy, Benjamin Samson
Samples :
IEF, Orsay, France Gwénaelle Julié, Véronique MathetTIMA, Grenoble, France Benoît CharlotLAAS, Toulouse, France Christian BergaudLPS, Orsay, France Rosella Latempa, Marco Aprili
Fluorescent particles :
ENSCP, Paris, France Michel Mortier
OUTLINE
Introduction : fluorescent particle as a local sensor
OUTLINE
Introduction : fluorescent particle as a local sensor
A local optical sensor (evanescent fields)
Local field around metallic nanoparticles
OUTLINE
Introduction : fluorescent particle as a local sensor
Local field around metallic nanoparticles
Surface plasmons polaritons launched by apertures
A local optical sensor (evanescent fields)
OUTLINE
Introduction : fluorescent particle as a local sensor
A local thermal sensor
Hot zones in a polysilicon resistive stripe
Local field around metallic nanoparticles
Surface plasmons polaritons launched by apertures
A local optical sensor (evanescent fields)
OUTLINE
Introduction : fluorescent particle as a local sensor
Hot zones in a polysilicon resistive stripe
Heating of an aluminum track
Local field around metallic nanoparticles
Surface plasmons polaritons launched by apertures
A local optical sensor (evanescent fields)
A local thermal sensor
HOW DOES IT WORK ? PM
Sample
Electromagnetic field on the surface
Microscopeobjective
Filters
Laser
Map of the field distribution on the
surface
HOW DOES IT WORK ? PM
Electromagnetic field on the surface
Microscopeobjective
Filters
Map of the total field distribution on the
surface
Simplicity
Many dipoles randomly oriented
Detection of the total electromagnetic field on the surface (Ex, Ey, Ez)
Sample
Laser
APL, 83, 147 (2003)
HOW DOES IT WORK ?
Simplicity
PM
Electromagnetic field on the surface
Microscopeobjective
FiltersMany dipoles randomly oriented
Detection of the total electromagnetic field on the surface (Ex, Ey, Ez)
Er / Yb ionsRobust : inorganic → no photobleaching
Infrared excitation :emission and absorption lines well separated
(= 550nm)
Non linear excitation :fluo I2 → Contrast enhanced