Atomic Force Microscope

CHAPTER # 00

FOREWORD
ATOMIC FORCE MICROSCOPE

CHAPTER # 01

THE MACHINE
ATOMIC FORCE MICROSCOPE

1.1 INTRODUCTION:

nuclear force microscope (AFM) is a powerful technique used for investigation a astray range of properties on the nanometer scale.it is a really high resolution type of scanning prove microscopes, with established resolution of fractions of a nanometer, more than1000 times repair than the optical diffraction limit.

atomic force microscope (AFM) is a technique for analyzing the show of almost all type of material all the government agency down to the level of the atom . AFM uses a mechanical test to magnify surface features up to 100,000,000 times, and it produces 3-D images of the surface.Two key strengths of AFM argon its ability to produce images in almost any milieuâ€"in air, vacuum, or solventâ€"and to measure a wide variety of physical properties of the sample

The probe traverses the surface, attractive and repulsive forces arising amongst it and the atoms on the surface induce forces on the probe that crease the cantilever. The amount of bending is measured and recorded by supervise the reflection of a laser spot off the decease of the cantilever via an array of photodiodes. providing a map of the atoms on the surface.



nuclear force microscopes can achieve magnification of a operator of 5 × 106, with a resolution of 2 angstroms, sufficient to disperse individual carbon atoms
Fig: 02 showing the function.

Methodology:
The Atomic Force Microscope is an instrument that can analyze and characterize samples at the microscope level. This means we can look at surface characteristics with very accurate resolution ranging from 100 ?m to less than 1?m.
The Atomic Force Microscope was developed to overcome a canonic drawback with STM - that it can only image conducting or semiconductive surfaces. The AFM, however, has the advantage of imaging almost any type of surface, including polymers, ceramics, composites, glass, and biological...If you wish to get a full essay, order it on our website: Orderessay



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