Fast-type high-accuracy universal polarimeter using charge-coupled device spectrometer

Takanabe, Akifumi; Koshima, Hideko; Asahi, Toru

doi:10.1063/1.4977440

Cited by 7 publications

(5 citation statements)

References 24 publications

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“…These results strongly indicate the usefulness of the HAUP method for evaluating the chiroptical and magneto-optical properties of ordered specimens. More recently, a rapid HAUP system was developed by using dispersive detection technique with a CCD array spectrometer [62]. Very thin crystalline sample, ca.…”

Section: Discussionmentioning

confidence: 99%

Chiroptical Studies on Anisotropic Condensed Matter: Principle and Recent Applications of the Generalized-High Accuracy Universal Polarimeter

Asahi¹,

Tanaka²,

Nakagawa³

et al. 2023

Crystal Growth and Chirality - Technologies and Applications

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Chiroptics is the study of the changes in circular polarization states of light transmitted through analytes typically dissolved in isotropic solutions. However, experimental challenges have long prevented chiroptical measurements of anisotropic media such as single crystals of low symmetry, liquid crystals, or structured films. The high accuracy universal polarimeter (HAUP) was introduced in 1983 to investigate the differential refraction of left and right circular polarization states, circular birefringence (CB), and even in anisotropic media that are dominated by the differential refraction of orthogonal linear polarization states, linear birefringence (LB). In this century, the HAUP was extended to also measure not only the dispersive optical effects (CB and LB) but also the corresponding dissipative effects, circular dichroism (CD) and linear dichroism (LD), differences in light absorption. The improved device is the generalized-HAUP (G-HAUP). Not only can it deliver all the linear optical properties of dissymmetric, anisotropic, and absorbing media, but it can also do so in the ultraviolet as well as the visible part of the electromagnetic spectrum. In this review, characteristic features of the G-HAUP and its applications to crystals of photomechanical salicylidenephenylethylamines, alanine, benzil, and magneto-optical CeF3 are described.

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Section: Discussionmentioning

confidence: 99%

Chiroptical Studies on Anisotropic Condensed Matter: Principle and Recent Applications of the Generalized-High Accuracy Universal Polarimeter

Asahi¹,

Tanaka²,

Nakagawa³

et al. 2023

Crystal Growth and Chirality - Technologies and Applications

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“…A significant part of the OA measurements in the presence of LB was performed by a high-accuracy universal polarimeter (HAUP) [24] and its modifications [21,25,26]. There are various methods of measuring small changes in the state of light polarization, including those that do not use moving elements in optical schemes [27,28].…”

Section: Introductionmentioning

confidence: 99%

Study of the optical rotation of potassium titanyl phosphate using the advanced dual-wavelength polarimetric method

Shopa,

Ftomyn,

Shopa

2024

Preprint

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An advanced dual-wavelength high-accuracy universal polarimeter was applied to measure optical activity in potassium titanyl phosphate (KTP) nonlinear crystal. Two single-mode He-Ne lasers with close wavelengths of 594 and 633 nm were used as light sources in the experimental setup. Multiple internal reflection of the light was taken into account when processing the results of the polarimetric measurements. Analysis of the optical transmission function for the polarizer-sample-analyzer system and 2D intensity contour maps made it possible to determine the phase parameters, systematic errors, and eigenwaves ellipticity. Gyration tensor component of the KTP crystal is equal to g12 =1.4 · 10-5 which in terms of optical rotatory power corresponds to the value of 2.3 deg/mm.

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“…A different approach to expand the possibilities of the high-accuracy polarimetry, using a charge-coupled device (CCD-HAUP), was proposed in Ref. 15.…”

Section: Introductionmentioning

confidence: 99%

Opto-Electronics Review

Shopa,

Kobyakov,

Shopa

2022

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An imaging polarimeter based on the principles of high-accuracy polarimetry well known in crystal optics is proposed. The application of scientific digital cameras for performance light measurements leads to precise data on polarizers quality, i.e., maps of extinction ratio and transmission axis. Processing of numerous images, acquired at various settings in the polarizer-sample-analyser system, allows to determine the two-dimensional distribution of the phase retardation of birefringent plates. Several results of imaging polarimetry experiments on birefringent plates demonstrate the impact of multiple light reflections on the measured phase retardation values. Experimental data for LiNbO3 and SiO2 crystal plates have been presented, demonstrating the capabilities of the proposed type of imaging polarimeter in the crystal optics studies. This technique also allows the measurement of the eigen wave ellipticities, associated with the optical activity of crystals.

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Fast-type high-accuracy universal polarimeter using charge-coupled device spectrometer

Cited by 7 publications

References 24 publications

Chiroptical Studies on Anisotropic Condensed Matter: Principle and Recent Applications of the Generalized-High Accuracy Universal Polarimeter

Chiroptical Studies on Anisotropic Condensed Matter: Principle and Recent Applications of the Generalized-High Accuracy Universal Polarimeter

Study of the optical rotation of potassium titanyl phosphate using the advanced dual-wavelength polarimetric method

Opto-Electronics Review

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