Direct measurement on transparent plates by using Fizeau interferometry

Dipankar Bhattacharyya; Ayan Ray; Bibhas K. Dutta; Pradip N. Ghosh

doi:10.1016/S0030-3992(01)00085-8

Direct measurement on transparent plates by using Fizeau interferometry

Dipankar Bhattacharyya
, Ayan Ray
, Bibhas K. Dutta
, Pradip N. Ghosh

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

It is shown that Fizeau interferometry provides an accurate optical method to measure the refractive index and wedge angle of transparent plates used as optical components in different experiments. A near IR external cavity diode laser having spectral resolution up to 10^-7 has been employed to measure the refractive index of the test plates by introducing amplitude modulation technique in the detection system of our phase shifting Fizeau interferometry. Detection of spatial fringes has been performed to find out the wedge angles of the plates by using a He-Ne laser along with the CCD-image sensor.

Original language	English
Pages (from-to)	93-96
Number of pages	4
Journal	Optics and Laser Technology
Volume	34
Issue number	1
DOIs	https://doi.org/10.1016/S0030-3992(01)00085-8
State	Published - Feb 2002
Externally published	Yes

Keywords

External cavity diode laser
Fizeau interferometer
Refractive index
Wedge angle

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10.1016/S0030-3992(01)00085-8

Cite this

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title = "Direct measurement on transparent plates by using Fizeau interferometry",

abstract = "It is shown that Fizeau interferometry provides an accurate optical method to measure the refractive index and wedge angle of transparent plates used as optical components in different experiments. A near IR external cavity diode laser having spectral resolution up to 10-7 has been employed to measure the refractive index of the test plates by introducing amplitude modulation technique in the detection system of our phase shifting Fizeau interferometry. Detection of spatial fringes has been performed to find out the wedge angles of the plates by using a He-Ne laser along with the CCD-image sensor.",

keywords = "External cavity diode laser, Fizeau interferometer, Refractive index, Wedge angle",

author = "Dipankar Bhattacharyya and Ayan Ray and Dutta, \{Bibhas K.\} and Ghosh, \{Pradip N.\}",

note = "Funding Information: The authors would like to thank Dr. Biswajit Ray for his useful comments. D.B. and B.K.D. thank the Council of Scientific and Industrial Research, New Delhi and A.R. thanks the University Grants Commission, New Delhi for Junior Research Fellowships. Financial assistance from the Department of Science and Technology (SP/S2/L-05/96) is gratefully acknowledged.",

year = "2002",

month = feb,

doi = "10.1016/S0030-3992(01)00085-8",

language = "English",

volume = "34",

pages = "93--96",

journal = "Optics and Laser Technology",

issn = "0030-3992",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Direct measurement on transparent plates by using Fizeau interferometry

AU - Bhattacharyya, Dipankar

AU - Ray, Ayan

AU - Dutta, Bibhas K.

AU - Ghosh, Pradip N.

N1 - Funding Information: The authors would like to thank Dr. Biswajit Ray for his useful comments. D.B. and B.K.D. thank the Council of Scientific and Industrial Research, New Delhi and A.R. thanks the University Grants Commission, New Delhi for Junior Research Fellowships. Financial assistance from the Department of Science and Technology (SP/S2/L-05/96) is gratefully acknowledged.

PY - 2002/2

Y1 - 2002/2

N2 - It is shown that Fizeau interferometry provides an accurate optical method to measure the refractive index and wedge angle of transparent plates used as optical components in different experiments. A near IR external cavity diode laser having spectral resolution up to 10-7 has been employed to measure the refractive index of the test plates by introducing amplitude modulation technique in the detection system of our phase shifting Fizeau interferometry. Detection of spatial fringes has been performed to find out the wedge angles of the plates by using a He-Ne laser along with the CCD-image sensor.

AB - It is shown that Fizeau interferometry provides an accurate optical method to measure the refractive index and wedge angle of transparent plates used as optical components in different experiments. A near IR external cavity diode laser having spectral resolution up to 10-7 has been employed to measure the refractive index of the test plates by introducing amplitude modulation technique in the detection system of our phase shifting Fizeau interferometry. Detection of spatial fringes has been performed to find out the wedge angles of the plates by using a He-Ne laser along with the CCD-image sensor.

KW - External cavity diode laser

KW - Fizeau interferometer

KW - Refractive index

KW - Wedge angle

UR - https://www.scopus.com/pages/publications/0036467223

U2 - 10.1016/S0030-3992(01)00085-8

DO - 10.1016/S0030-3992(01)00085-8

M3 - Article

AN - SCOPUS:0036467223

SN - 0030-3992

VL - 34

SP - 93

EP - 96

JO - Optics and Laser Technology

JF - Optics and Laser Technology

IS - 1

ER -

Direct measurement on transparent plates by using Fizeau interferometry

Abstract

Keywords

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