Tunable wideband phase self-compensation retarder

Abstract

The invention provides a tunable wideband phase self-compensation retarder consisting of two membrane-type phase retarders, two three-dimensional optical adjusting rack and a rotary platform, wherein the two membrane-type phase retarders are arranged on the three-dimensional optical adjusting rack and can rotate according to the requirement by adjusting a stepping motor; the incident light beams can be reflected respectively on the two membrane-type phase retarders, thus realizing the aims of phase self-compensation retarding and specific wideband phase retarding. The stepping motor can be adjusted to rotate within the wide waveband according to the requirement so that the stable phase retarding can be obtained on the two membranes at different incident angles; and the retarder can be used for femtosecond laser micromachining. The tunable wideband phase self-compensation retarder has a simple structure, can be manufactured and adjusted easily, and can obtain phase retarding compensation or generate phase retarding of specific wideband by adjusting different rotation angles of the stepping motor.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes an improved type of light filter called Optically Self Compensated Retroflection (OCR). It uses special materials made from silver on top for better performance at shorter wavelength ranges like infrared rays due to their ability to absorb more energy than other colors. By combining these properties together, OCR filters have greater stability against environmental factors such as temperature variations compared to traditional methods. They also allow for precise tuning over multiple different angles without requiring complicated equipment. Overall, this new design improves efficiency and reduces costs associated with manufacturing processes.

Problems solved by technology

This patented describes how two types of materials interact with lights: one being called beam material that causes them to bend when exposed to certain angles while another type called prismatic material used to change its properties during manufacturing processes. These interactions affects the amount of energy transmitted through specific parts of the system. By measuring this interaction's effects on waves reflected by these surfaces, researchers have been able to determine factors like refractive index (RI) values and thicknesses of layers involved in the process. Additionally, they found that there was no significant deviation from ideal conditions over long periods due to environmental influences such as temperature fluctuations. Overall, their findings indicate that producing thin film phase retardsers has potential benefits compared to traditional methods.

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