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Diffraction Patterns from Narrow Slits

Intensity of Single-Slit Diffraction Patterns

Diffraction Patterns from Narrow Slits

Intensity of Single-Slit Diffraction Patterns

(4.3)

(4.4)

Diffraction Patterns from Narrow Slits

Intensity of Single-Slit Diffraction Patterns

(4.6)

Resolution of Single-Slit

and Circular Apertures

(4.7)

When the central maximum of one image falls on the first minimum of another image, the images are said to be just resolved. This limiting condition of resolution is known as Rayleigh’s criterion.

Resolution of Single-Slit

and Circular Apertures

(4.8)

The Diffraction Grating

The diffraction grating, a useful device for analyzing light sources, consists of a large number of equally spaced

parallel slits.

 

 

(4.9)

 

The Diffraction Grating

Intensity versus sinθ for a diffraction grating. The zeroth-, first-, and second- order maxima are shown.

Diagram of a diffraction grating spectrometer.

The Diffraction Grating

A small portion of a grating light valve. The alternating reflective ribbons at different levels act as a diffraction grating, offering veryhigh-speed control of the direction of light toward a digital display device.

Соседние файлы в папке Lectures Physics 2