Achromatic phase retarder applied to  MWIR &amp; LWIR dual-band

Kang, Guoguo; Tan, Qiaofeng; Wang, Xiaoling; Jin, Guofan

doi:10.1364/oe.18.001695

Cited by 35 publications

(24 citation statements)

References 14 publications

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“…There are three main approaches to making an achromatic elliptical polarizer. One approach uses negative dispersion materials [13] or form birefringence [14][15][16] to reduce the variation of retardance due to the wavelength change. Another approach uses helical materials with variable pitch, such as cholesteric liquid crystal polymer, to achieve a broadband circular polarizer [17,18].…”

Section: Theory Of Achromatic Elliptical Polarizersmentioning

confidence: 99%

Design, fabrication and testing of achromatic elliptical polarizer

Tu¹,

Jiang²,

Ibn‐Elhaj³

et al. 2017

Opt. Express

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A method of designing achromatic elliptical polarizers using a combination of multiple birefringent waveplates is demonstrated. This approach has a simple geometric interpretation and simplifies the problem of designing an achromatic elliptical polarizer to find overlapping arcs on the Poincaré sphere. The technique is applied to the design of achromatic elliptical polarizers for a broadband division-of-focal-plane full-Stokes imaging polarimeter for visible wavelength band (λ = 450nm to 650nm). An achromatic elliptical polarizer sample with a two-layer retarder is fabricated using liquid crystal polymer. The performance of the polarizer sample is measured and compared with the theoretical calculation. For comparison, a superachromatic polarizer design (λ = 400nm to 1μm) is also presented by using three-layer and four-layer retarder configurations. Wilkes, and C. Topping, "Polymer comprising cyclohexylene groups and its use in films with negative optical dispersion," United States patent US8802813 B2. 14. G. Kang, Q. Tan, X. Wang, and G. Jin, "Achromatic phase retarder applied to MWIR & LWIR dual-band," Opt.Express 18(2), 1695-1703 (2010). 15. X. Deng, F. Liu, J. J. Wang, P. F. Sciortino, Jr., L. Chen, and X. Liu, "Achromatic wave plates for optical pickup units fabricated by use of imprint lithography," Opt. Lett. 30(19), 2614-2616 (2005). 16. H. Kikuta, Y. Ohira, and K. Iwata, "Achromatic quarter-wave plates using the dispersion of form birefringence," Appl. Opt. 36(7), 1566-1572 (1997). 17. D. J. Broer, J. Lub, and G. N. Mol, "Wide-band reflective polarizers from cholesteric polymer networks with a pitch gradient," Nature 378(6556), 467-469 (1995).

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Section: Theory Of Achromatic Elliptical Polarizersmentioning

confidence: 99%

Design, fabrication and testing of achromatic elliptical polarizer

Tu¹,

Jiang²,

Ibn‐Elhaj³

et al. 2017

Opt. Express

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show abstract

“…These expressions have been incorrectly used under the condition ϕ ≠ 0 [8,11]. However, it is possible to calculate the overall delay, Δ, introduced for any orientation of the plates, ϕ ≠ 0, via diagonalization of M. Since matrix M is self-adjoint and unitary, the module of its eigenvalues, μ i , is unit…”

Section: Theoretical Framementioning

confidence: 99%

“…The obtained expression is a generalization of the currently used equation to any azimuth [8][9][10][11]. In former works, achromatism is achieved only for two wavelengths and does not have a parameter that characterizes the performance of these achromatic designs.…”

Section: Introductionmentioning

confidence: 97%

Optimal achromatic wave retarders using two birefringent wave plates

2013

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Two plates of different birefringence material can be combined to obtain an achromatic wave retarder. In this work, we achieve a correction for the overall retardation of the system that extends the relation to any azimuth. Current techniques for the design of achromatic wave retarders do not present a parameter that characterizes its achromatism on a range of wavelengths. Thus, an achromatic degree has been introduced, in order to determine the optimal achromatic design composed with retarder plates for a spectrum of incident light. In particular, we have optimized a quarter retarder using two wave plates for the visible spectrum. Our technique has been compared to previous results, showing significant improvement.

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“…There are several papers [12][13][14][15][16] related to the calculation methods of quartz and sapphire AWPs. Some corrections were described in basic methods of WP calculations, because they are not suitable for the case when the measuring system has high resolution (as compared to the FWHM of interference peaks).…”

Section: Calculationmentioning

confidence: 99%

Terahertz polarization conversion with quartz waveplate sets

Кавеев¹,

Кропотов²,

Tsygankova³

et al. 2013

Appl. Opt.

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We present the results of calculation and experimental testing of an achromatic polarization converter and a composite terahertz waveplate (WP), which are represented by sets of plane-parallel birefringent plates with in-plane birefringence axis. The calculations took into account the effect of interference, which was especially prominent when plates were separated by an air gap. The possibility of development of a spectrum analyzer design based on a set of WPs is also discussed.

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Achromatic phase retarder applied to  MWIR & LWIR dual-band

Cited by 35 publications

References 14 publications

Design, fabrication and testing of achromatic elliptical polarizer

Design, fabrication and testing of achromatic elliptical polarizer

Optimal achromatic wave retarders using two birefringent wave plates

Terahertz polarization conversion with quartz waveplate sets

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