Phys 198                                                Jan 13, 1997


OPTICS REVIEW (1)


Image formation by thin lens:

Thin Lens Eqns. where f is focal length, R is radius of curvature of lens surface (positive if vertex is to left of center of curvature), p is object distance (positive if object is in object space), q is image distance (positive if image is in image space), m is lateral magnification (positive if image is erect, negative if image inverted).

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Interference:

Two-slit interference

Drawing of Young's Expt. Eqns. for Two-Slit Interference

where I is observed intensity from interference of two coherent beams of intensities I1 and I2 and delta is the relative phase difference between them.

Multiple Slits

Multiple (N) slits has intensity variation proportional to Intensity Distribution for Multiple Slit Interference

Multiple Slit Interference Eqns.

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Diffraction:

Obviously dependent on shape of aperture. Common shapes and the factors they introduce into the intensity distribution are given below.

Drawing of Single Slit Diffraction

Eqns. for Single Slit Diffraction

Diffraction from Circular Aperture

Diffraction from a Rectangular Aperture

Diffraction Grating Diffraction Eqn.

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