Measurements of material refractive index with a circular heterodyne interferometer

Zhi Cheng Jian, Jiun You Lin, Po Jen Hsieh, Der Chin Su

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

When a light coming from a circularly polarized heterodyne light source incidents on an optical material, a phase difference between s- and p- polarization components of the reflected light occurs. This phase difference can be measured accurately with the heterodyne interferometry. The measured data are substituted into the special equations derived from Fresnel equations, the refractive index can be estimated. This method bears both merits of a common-path interferometer and a heterodyne interferometer. The refractive indices of three optical glasses and two birefringent crystals were measured to show the validity of this method.

Original languageEnglish
Article number74
Pages (from-to)882-892
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5856 PART II
DOIs
Publication statusPublished - 2005 Dec 19
EventOptical Measurement Systems for Industrial Inspection IV - Munich, Germany
Duration: 2005 Jun 132005 Jun 17

Fingerprint

Heterodyne
Phase Difference
Interferometer
Interferometers
Refractive Index
Refractive index
interferometers
Heterodyne Interferometry
refractivity
Optical glass
Optical Materials
Optical materials
optical materials
bears
Interferometry
polarized light
sands
Light sources
light sources
interferometry

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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abstract = "When a light coming from a circularly polarized heterodyne light source incidents on an optical material, a phase difference between s- and p- polarization components of the reflected light occurs. This phase difference can be measured accurately with the heterodyne interferometry. The measured data are substituted into the special equations derived from Fresnel equations, the refractive index can be estimated. This method bears both merits of a common-path interferometer and a heterodyne interferometer. The refractive indices of three optical glasses and two birefringent crystals were measured to show the validity of this method.",
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Measurements of material refractive index with a circular heterodyne interferometer. / Jian, Zhi Cheng; Lin, Jiun You; Hsieh, Po Jen; Su, Der Chin.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5856 PART II, 74, 19.12.2005, p. 882-892.

Research output: Contribution to journalConference article

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AU - Jian, Zhi Cheng

AU - Lin, Jiun You

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AU - Su, Der Chin

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AB - When a light coming from a circularly polarized heterodyne light source incidents on an optical material, a phase difference between s- and p- polarization components of the reflected light occurs. This phase difference can be measured accurately with the heterodyne interferometry. The measured data are substituted into the special equations derived from Fresnel equations, the refractive index can be estimated. This method bears both merits of a common-path interferometer and a heterodyne interferometer. The refractive indices of three optical glasses and two birefringent crystals were measured to show the validity of this method.

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