Axially resolved complete Mueller matrix confocal microscopy

Lara, David; Dainty, Chris

doi:10.1364/ao.45.001917

Cited by 62 publications

(56 citation statements)

References 41 publications

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“…The compensator in the PSG rotates at approximately 0.0694 Hz, while the compensator in the PSA rotates five times slower, at around 0.0138 Hz. This ratio of angular speeds is not arbitrary, as we showed before [8], it provides the optimum conditions for the frequency demodulation. The whole instrument is controlled by a personal computer with custom-made LabView program.…”

Section: Technical Modificationsmentioning

confidence: 83%

“…These optical effects can be directly calculated from the Mueller matrix following [7,8]. If the fiber is parallel to the horizontal (x) axis of the instrument LB´ vanishes and LB reduces to the total linear birefringence.…”

Section: Application To Textile Fibersmentioning

confidence: 99%

“…The dual rotating compensator setup is one of the most popular approaches to measure the complete Mueller matrix, but there several other alternatives discussed in Refs. [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Conversion of a polarization microscope into a Mueller matrix microscope. Application to the measurement of textile fibers

Kuntman¹,

Arteaga²,

Roca³

et al. 2015

Opt. Pura Apl.

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Conversión de un microscopio de polarización en un microscopio de matriz de Mueller. Aplicación a la medida de fibras textiles. ABSTRACT:This work reports the conversion of a commercial polarization microscope (Zeiss Jenaval) into an automatized Mueller matrix microscope. A Mueller matrix measurement provides the value of all the optical properties of a specimen (linear dichroism, linear birefringence, circular dichroism etc.) at a specific wavelength. In contrast to traditional polarization microscopes, which use white light and crossed polarizers to generate colored interference patterns that are analyzed by the microscope user and give only semi-quantitative results, here we demonstrate that it is possible to convert a polarization microscope into a Mueller microscope by only adding two motorized rotating compensators into the optical path without altering the optics or other opto-mechanical elements of the microscope. To our knowledge this is the most compact, fast and handy Mueller microscope ever developed. The performance of this new Mueller matrix microscope is illustrated with some birefringence measurements on textile fibers.Key words: microscopy, polarimetry, Mueller matrix, birefringence. RESUMEN:Este trabajo describe la conversión de un microscopio de polarización comercial (Zeiss Jenaval) en un microscopio de matriz de Mueller automatizado. Una medida de la matriz de Mueller proporciona todas las propiedades ópticas de una muestra (dicroísmo lineal, birrefringencia lineal, dicroísmo circular, etc) para una longitud de onda dada. Los microscopios de polarización tradicionales usan luz blanca y polarizadores cruzados para generar un patrón de colores interferencia que debe ser interpretado por el usuario del microscopio y proporciona resultados sólo semi-cuantitativos. En este trabajo demostramos que añadiendo dos compensadores rotatorios actuados por sendos motores es posible convertir un microscopio de polarización en un microscopio de matriz de Mueller sin alterar la óptica u otros elementos opto-mecánicos del microscopio. Creemos que este es el microscopio de matriz de Mueller más compacto, rápido y práctico que se ha desarrollado. El funcionamiento de este microscopio se demuestra con algunas medidas de birrefringencia en fibras textiles.Palabras clave: microscopía, polarimetría, matriz de Mueller, birrefringencia.

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Section: Technical Modificationsmentioning

confidence: 83%

Section: Application To Textile Fibersmentioning

confidence: 99%

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Conversion of a polarization microscope into a Mueller matrix microscope. Application to the measurement of textile fibers

Kuntman¹,

Arteaga²,

Roca³

et al. 2015

Opt. Pura Apl.

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“…The scanning-type polarimeters have been applied to image quality and feature visualization improvement by use of the top row of the Mueller matrix image to compute images with higher signal to noise ratio or entropy [56,57]. Lara and Dainty have reported a polarimetric configuration which, though designed to probe biological samples and in particular the human eye, is at an early stage of development and no data has yet been presented [58,59]. Their polarimeter design (Figure 2.14) is based on a confocal microscope.…”

Section: 4: Experimental Methods For Ocular Polarization Interactionsmentioning

confidence: 99%

“…ND: neutral density; Glan-Taylor: polarizing prism; Pockels 1 and 2: Pockels cell variable retarders; M1: mirror; L1: collimating lens; Bs1, Bs2, Bs3, and Bs4: non-polarizing beamsplitters; PBs4: polarizing beamsplitter; Obj1, Obj2, and Obj3: objective lenses; Ph: pinhole; Qwp: quarter wave plate; P0 and P45: linear polarizers; D1-D4: photodetectors. Reprinted with permission from [59].…”

Section: 4: Experimental Methods For Ocular Polarization Interactionsmentioning

confidence: 99%

GDx-MM: An Imaging Mueller Matrix Retinal Polarimeter

Twietmeyer

2007

Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion

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Spatially Resolved Chiroptical Spectroscopies Emphasizing Recent Applications to Thin Films of Chiral Organic Dyes

Albano,

Taddeucci,

Pescitelli

et al. 2023

Chemistry A European J

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Instrumental techniques able to identify and structurally characterize the aggregation states in thin films of chiral organic π‐conjugated materials at different levels of hierarchy are very helpful for clarifying structure‐property relationships. Microscopy techniques are widely used for the characterization of thin films morphology on the 10–100 nm scale or higher, while they can hardly provide insight into the supramolecular organization at the first level of hierarchy (1‐10 nm). On the contrary, chiroptical spectroscopies typically provide relevant information about the ﬁrst level of supramolecular organization at the nanometer scale with no spatial resolution. A solution is offered by combining chiroptical and microscopy techniques: spatially resolved chiroptical spectroscopies represent a promising tool for mapping and disentangling local supramolecular structures in thin films. In the present review we give an overview of all the techniques developed for spatially resolved chiroptical investigation of thin films of chiral organic dyes: electronic circular dichroism imaging (ECDi), circularly polarized luminescence imaging (CPLi), and vibrational circular dichroism imaging (VCDi).

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Axially resolved complete Mueller matrix confocal microscopy

Cited by 62 publications

References 41 publications

Conversion of a polarization microscope into a Mueller matrix microscope. Application to the measurement of textile fibers

Conversion of a polarization microscope into a Mueller matrix microscope. Application to the measurement of textile fibers

GDx-MM: An Imaging Mueller Matrix Retinal Polarimeter

Spatially Resolved Chiroptical Spectroscopies Emphasizing Recent Applications to Thin Films of Chiral Organic Dyes

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