Microscopy

IUT-ENSICAEN

Updated 14/12/2004



Laboratory



Research Inst.



Teaching Inst.



University


You'll find here some things I posted on for my students. Provided you find it useful you can freely use them, just acknowledge please !

General
Contents
Optical lens principle
Thin lens principle
Spherical aberration
Chromatic aberrations

Image of a point
Airy diffraction

Resolution
Numerical Aperture
Resolving power of an objective
Bi-refringence


Cauchy law
Bragg law
Human eye

Photonic microscopy
Principle
321 Huygens ocular



Polarised-light microscopy
Principle
Microquartz
Twins and clivage in olivine


Dark-field microscopy
Principle
Spermatozoids



Phase-contrast microscopy
Principle
Spermatozoids in positive phase contrast
Spermatozoids in negative phase contrast
Spermatozoids in interference phase contrast

Fluorescence microscopy
Principle
Grafted BSA molecule



Confocal microscopy
Principle
Comparison normal/confocal
with LASER scanning
Granite craks
Protein location in a cell
Holographic microscopy
Principle
Neuron
Fresnel lens
In color levels

Electron microscopy
Electron-Matter interaction
Diffusion
The emmissive "pear"
Electron distribution versus energy

Scanning Electron Microscopy (SEM)
Principle
A SEM eqquipment
Indus pigments
their EDX diagram
Topographic image of Ni single crystal


Secondary vs backscattered image
Nervous cell in backscattering mode
Fe-EDX image of a Fe-Ti alloy
Ti-EDX image of a Fe-Ti alloy

K-EDX image of a Fe-Ti alloy
Chemical attack of an InP single crystal



Electron BackScattering Diffraction (EBSD)
Principle
Kikuchi bands formation
Orientation Mapping principle
Bands detection
Bands Indexing

Calcite EBSD pattern
Omphacite EBSD pattern

Grain orientation map of calcite
Calcite misorientation grain distribution
Transmission Electron Microscopy (TEM)
Principle
TEM cross sectionned instrument
Electron Gun
Image/diffraction modes
Dislocations in GaN

Al precipitates
High resolution image of a silicate
GaN on saphire substrate
Body centred (I) Diffraction
High Resolution negative image

Fourier Transformed
+ background filtering
+ TF-1


Convergent Beam Electron Diffraction
Principle
Defocused Convergent Beam
Typical diffraction image
Si example
GaAs example
Near Field Microscopy (AFM, Tunnel ...)
Principle
Scanning monitoring
LiNbO3 AFM image
Optical Tunneling principle
Optic Fiber system

Functionnalised mode
Different Scanning modes
Magnetic Force image of Co
Molecular Conformation
Living cell viewed in different modes
Exams
January 2004
Correction






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