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Ternary broadband achromatic aberration composite wave plate and manufacturing method thereof

A composite wave plate and ternary technology, applied in optical components, polarizing components, optics, etc., can solve problems such as increased difficulty and cost

Inactive Publication Date: 2016-04-27
WUHAN IND INST FOR OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this composite wave plate requires at least 6 single wave plates or more wave plates, and at least two different materials, which increases the difficulty and cost of processing

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  • Ternary broadband achromatic aberration composite wave plate and manufacturing method thereof
  • Ternary broadband achromatic aberration composite wave plate and manufacturing method thereof
  • Ternary broadband achromatic aberration composite wave plate and manufacturing method thereof

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Embodiment Construction

[0056] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. If the description here relates to specific examples, it is only used to explain the present invention, and does not limit the present invention.

[0057] The invention is a ternary broadband achromatic composite wave plate, which can realize achromatic achromatic in a wide band range including ultraviolet, visible and near-infrared. It is composed of wave plates, and each quarter-zero-order wave plate is placed in parallel, wherein the center wavelength and the optical axis angle of the three quarter-zero-order wave plates satisfy such that the ternary composite wave plate is designed in the design. Phase retardation δ corresponding to each wavelength point in the band range Γ e (λ) and the ideal phase delay value δ 0 The maximum value of the difference betwee...

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Abstract

The invention discloses a ternary broadband achromatic aberration composite wave plate for realizing achromatic aberration within the band range of ultraviolet, visible and near infrared light. The composite wave plate comprises three quarter zero-level wave plates made of the same material and placed in parallel, wherein the included angles between the central wavelengths of the three quarter zero-level wave plates and an optical axis satisfy the condition that the maximum difference between the phase retardation delta e (lambda) corresponding to each wavelength point of the ternary composite wave plate within the designed band range gamma and the ideal phase retardation delta 0 is minimum. The ternary broadband achromatic aberration composite wave plate has better achromatic aberration performance within the selected band range, and can meet the use requirement of spectral ellipsometry equal-width optical systems for broadband achromatic aberration wave plates.

Description

technical field [0001] The invention belongs to the field of optical element design, and more particularly relates to a ternary broadband achromatic composite wave plate. Background technique [0002] Wave plate is a commonly used optical element in the field of optical instrument design and optical measurement. It can make the two perpendicular components of polarized light generate additional optical path difference (or phase difference), which is called the phase retardation of the wave plate. The phase retardation properties of wave plates can be used to change the polarization state of light waves (eg from linearly polarized light to circularly polarized light, elliptically polarized light to linearly polarized light, etc.), or to examine the polarization state of light waves. Waveplates are usually made of birefringent crystals. Commonly used birefringent crystals include mica, gypsum, magnesium fluoride, sapphire, and crystalline quartz. [0003] A single-wave plate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02B27/00
CPCG02B5/30G02B27/0012G02B27/0025
Inventor 刘世元张传维
Owner WUHAN IND INST FOR OPTOELECTRONICS