Design of Novel Beam Demagnifier Based on Total Reflection -Refraction

Abstract:

A novel beam demagnifier(a cone) is presented based on total internal reflection-refraction principle, and the light propagation characteristics inside the cone were studied by using ray-tracing method and computer simulation. This paper presents several proof-theoretic results concerning a cone as a beam demagnifier under certain conditions. When the semiapex angle of the cone is equal to a series of specific values an output beam is parallel to an incident beam, the beam's diameter narrows, and the demagnification ratio of the cone is a function of apex angle and there exists a series of extreme points; the demagnifier can be used in series so as to further narrow or magnify the diameter of incident beam.

• Periodical: Advanced Materials Research (Volume 338)
• Pages: 22-25
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.338.22
• Online since: September 2011
• Authors: Hua Qin, Cun Zhi Sun
• Keywords: Novel Beam Demagnifier, Ray-Tracing Method (RTM), Total Internal Reflection-refraction

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