A new type of liquid refractometer

Jiun You Lin, Jing Heng Chen, Kun Huang Chen, Der Chin Su

Research output: Contribution to journalConference article

Abstract

A new liquid refractometer is proposed based on the phenomenon of total-internal reflection and the technique of heterodyne interferometry. A special designed glass probe is immersed in the tested liquid, and a light beam is guided within this probe due to the total internal reflections. After the light beam is totally reflected at the other end of the probe, it goes back in an anti-parallel direction of the original path. Because of multiple total-internal reflections, the phase difference, which is determined by the heterodyne interferometry between the p- and s-polarizations, is greatly enhanced to result in an accurate refractive index. The feasibility of this method was demonstrated by our experimental results, and a resolution of 5x10-3 is obtained with our method. This method should, therefore, bear the merits of high accuracy, high stability, and easy operation.

Original languageEnglish
Pages (from-to)1020-1022
Number of pages3
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume5
Issue number5
DOIs
Publication statusPublished - 2008 Dec 1
Event4th International Conference on Spectroscopic Ellipsometry, ICSE4 - Stockholm, Sweden
Duration: 2007 Jun 112007 Jun 15

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refractometers
light beams
probes
interferometry
liquids
bears
refractivity
glass
polarization

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Lin, Jiun You ; Chen, Jing Heng ; Chen, Kun Huang ; Su, Der Chin. / A new type of liquid refractometer. In: Physica Status Solidi (C) Current Topics in Solid State Physics. 2008 ; Vol. 5, No. 5. pp. 1020-1022.
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A new type of liquid refractometer. / Lin, Jiun You; Chen, Jing Heng; Chen, Kun Huang; Su, Der Chin.

In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 5, No. 5, 01.12.2008, p. 1020-1022.

Research output: Contribution to journalConference article

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AU - Lin, Jiun You

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AU - Chen, Kun Huang

AU - Su, Der Chin

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N2 - A new liquid refractometer is proposed based on the phenomenon of total-internal reflection and the technique of heterodyne interferometry. A special designed glass probe is immersed in the tested liquid, and a light beam is guided within this probe due to the total internal reflections. After the light beam is totally reflected at the other end of the probe, it goes back in an anti-parallel direction of the original path. Because of multiple total-internal reflections, the phase difference, which is determined by the heterodyne interferometry between the p- and s-polarizations, is greatly enhanced to result in an accurate refractive index. The feasibility of this method was demonstrated by our experimental results, and a resolution of 5x10-3 is obtained with our method. This method should, therefore, bear the merits of high accuracy, high stability, and easy operation.

AB - A new liquid refractometer is proposed based on the phenomenon of total-internal reflection and the technique of heterodyne interferometry. A special designed glass probe is immersed in the tested liquid, and a light beam is guided within this probe due to the total internal reflections. After the light beam is totally reflected at the other end of the probe, it goes back in an anti-parallel direction of the original path. Because of multiple total-internal reflections, the phase difference, which is determined by the heterodyne interferometry between the p- and s-polarizations, is greatly enhanced to result in an accurate refractive index. The feasibility of this method was demonstrated by our experimental results, and a resolution of 5x10-3 is obtained with our method. This method should, therefore, bear the merits of high accuracy, high stability, and easy operation.

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