Interferometric measurement of refractive index

McKee, David; Nicholls, J.F.H.; Ruddock, I. S.

doi:10.1088/0143-0807/16/3/007

Cited by 14 publications

(15 citation statements)

References 1 publication

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“…The sample to be measured is placed in the test arm of the Michelson interferometer. 22–24 Light from the laser, 633 nm, is split into two beams by the semitransparent dividing prism. After splitting, one of the beams reflects from the mirror and the other passes through the polarizer; the sample then reflects from the other mirror and goes through the same sample once again.…”

Section: Methodsmentioning

confidence: 99%

“…The optical setup, including necessary automation elements for measuring the refractive index of crystalline materials, is shown schematically in Figure 1. The sample to be measured is placed in the test arm of the Michelson interferometer [22][23][24]. Light from the laser, 633 nm, is split into two beams by the semitransparent dividing prism.…”

Section: Optical Setupmentioning

confidence: 99%

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LabVIEW-Based Automated Setup for Interferometric Refractive Index Probing

Andrushchak

Karbovnyk

2020

SLAS Technology

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In the paper, we explain an automated LabVIEW controlled setup that enables interferometric measurements of refractive indices in crystalline materials using a laser light source. The setup combines a mechanical system, a microcomputer-controlled gearless drive, a Michelson interferometer, an optical detector, a data acquisition system and a LabVIEW virtual instrument for an accurate non-destructive determination of the refractive index of given plane-parallel samples.We explain a concept, implementation, and hardware/software peculiarities of the developed system. Test experiments on different crystals yielded results that are in good agreement with available reference data. The range of potential applications of the proposed setup extends from fundamental optical research to biophotonics instrumentation, where efficient delivery of light is 2 of crucial importance and reliable automated probing tools are needed for optical components characterization.

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Section: Methodsmentioning

confidence: 99%

Section: Optical Setupmentioning

confidence: 99%

LabVIEW-Based Automated Setup for Interferometric Refractive Index Probing

Andrushchak

Karbovnyk

2020

SLAS Technology

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“…The refractive indices for 532 and 1064 nm wavelengths, were measured using a Mach-Zehnder interferometer setup by rotating appropriately oriented crystal plates in one arm and counting the resulting number of interference fringes. 34,35 Because of the plate-like morphology of LARe crystal (z > x > y), the n 2 refractive index measurement was not possible due to small xy area ($2 mm 2 ) and consequently it was calculated from the phase matching SHG measurements.…”

Section: Linear Optical and Non-linear Optical Characterizationmentioning

confidence: 99%

Synthesis, structure and non-linear optical properties of l-argininium perrhenate crystal

et al. 2012

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A new hybrid organic-inorganic non-linear optical crystalline material, L-argininium perrhenate has been synthesized. The crystal belongs to P2 1 2 1 2 1 space group, has a good optical quality and high transmission in the visible and near infra-red spectral regions. L-argininium perrhenate has high birefringence and is more than four times as efficient as KDP in second harmonic generation, making it a potentially attractive material for non-linear optical applications.

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“…In particular, we present our treatment for the Michelson interferometer, for which very interesting applications and teaching strategies can be found in many publications [4][5][6][7][8][9]. Our approach can also be applied to other types of interferometric devices provided that the calculations are adapted to the particular case.…”

Section: Introductionmentioning

confidence: 99%

Quantitative phase determination by using a Michelson interferometer

Pomarico¹,

Molina²,

D'Angelo³

2007

Eur. J. Phys.

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The Michelson interferometer is one of the best established tools for quantitative interferometric measurements. It has been, and is still successfully used, not only for scientific purposes, but it is also introduced in undergraduate courses for qualitative demonstrations as well as for quantitative determination of several properties such as refractive index, wavelength, optical thickness, etc. Generally speaking, most of the measurements are carried out by determining phase distortions through the changes in the location and/or shape of the interference fringes. However, the extreme sensitivity of this tool, for which minimum deviations of the conditions of its branches can cause very large modifications in the fringe pattern, makes phase changes difficult to follow and measure. The purpose of this communication is to show that, under certain conditions, the sensitivity of the Michelson interferometer can be 'turned down' allowing the quantitative measurement of phase changes with relative ease. As an example we present how the angle (or, optionally, the refractive index) of a transparent standard optical wedge can be determined. Experimental results are shown and compared with the data provided by the manufacturer showing very good agreement.

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Interferometric measurement of refractive index

Cited by 14 publications

References 1 publication

LabVIEW-Based Automated Setup for Interferometric Refractive Index Probing

LabVIEW-Based Automated Setup for Interferometric Refractive Index Probing

Synthesis, structure and non-linear optical properties of l-argininium perrhenate crystal

Quantitative phase determination by using a Michelson interferometer

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