It is composed by two 30 dispersion prisms and a right angle prism.The mutual Perpendicular surfaces are of the input and output surfaces. When a beam incident in one of the two surfaces ( S1&S2 )at Brewster angle, then the beam will out-put at Brewster angle too from another surface, and beam is deviated 90.It is often used as a dispersion prism.
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Infrared Optics
dispersion prisms and a right angle prism.The mutual Perpendicular surfaces are of the input and output surfaces. When a beam incident in one of the two surfaces ( S1&S2 )at Brewster angle, then the beam will out-put at Brewster angle too from another surface, and beam is deviated 90
.It is often used as a dispersion prism.