AP7015 OPTICAL IMAGING TECHNIQUES

AP7015 OPTICAL IMAGING TECHNIQUES

UNIT I      FUNDAMENTALS

Coherance and light source – optical image formation – Franhoufer diffraction – Single slit – double slit circular aperture – double aperture gratings – 1D and 2D lens aperture – Interference. 

UNIT II FOURIER SERIES AND TRANSFORM

Fourier series – Fourier coefficients – optical and crystal diffraction gratings – Fourier series formulation – Fourier transform and single slit diffraction – grating pattern – Fourier transform of light waves – correlation. 

UNIT III          OPTICAL IMAGING AND PROCESSING

Incoherent optical imaging – transfer function – coherent optical imaging – periodic and non periodic objects – optical transform – Holography – coherent and incoherent optical processing. 

UNIT IV IMAGE CONSTRUCTION TECHNIQUES

X – ray computed tomography – reconstruction by simple back projection – iterative reconstruction – analysis methods – magnetic resonance imaging – Ultrasonic computed tomography. 

UNIT V   APPLICATIONS

Michelsons stellar interferometry – spectral interferometer – fringe visibility and spectral distribution – partial coherence and correlation – Fourier transform spectroscopy – Synthetic aperture radar – Intensity interferometer – Imaging by holographic techniques. 

REFERENCES: 

1. E.G. Stewart, “Fourier Optics an Introduction”, 2nd Edition, Ellis Harwood limited, Chichester, 1987. 2. Dror.G. Feitelson, “Optical Computing”, MIT press, Cambridge, 1988.