Optical unwrapping by triple illumination interferometer

Behnam Tayebi, Mohammad Reza Jafarfard, Farnaz Sharif, Young Sik Song, Dug Young Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Here, we present a triple illumination phase interferometer to have a more flexible unwrapping measurement range for single shot optical unwrapping. Three beams of this interferometer illuminate a sample at different incident angles, three phases of the different incident angles are simultaneously recorded using three spatial frequencies. The different direction phases can be used for dual illumination optical unwrapping; as a result, the phase can be unwrapped by more than one measurement range. The feasibility of this technique is demonstrated by measuring a stepped object with heights of 150 and 660 μm. The smaller stepped phase is unwrapped by two measurement range; however, the phase of larger step is wrapped for only one of the measurement range.

Original languageEnglish
Title of host publicationPhotonic Instrumentation Engineering II
PublisherSPIE
Volume9369
ISBN (Electronic)9781628414592
DOIs
Publication statusPublished - 2015 Jan 1
EventPhotonic Instrumentation Engineering II - San Francisco, United States
Duration: 2015 Feb 112015 Feb 12

Other

OtherPhotonic Instrumentation Engineering II
CountryUnited States
CitySan Francisco
Period15/2/1115/2/12

Fingerprint

rangefinding
Interferometer
Interferometers
Illumination
interferometers
Lighting
illumination
Range of data
shot
Angle

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

Tayebi, B., Jafarfard, M. R., Sharif, F., Song, Y. S., & Kim, D. Y. (2015). Optical unwrapping by triple illumination interferometer. In Photonic Instrumentation Engineering II (Vol. 9369). [93690W] SPIE. https://doi.org/10.1117/12.2079536
Tayebi, Behnam ; Jafarfard, Mohammad Reza ; Sharif, Farnaz ; Song, Young Sik ; Kim, Dug Young. / Optical unwrapping by triple illumination interferometer. Photonic Instrumentation Engineering II. Vol. 9369 SPIE, 2015.
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Tayebi, B, Jafarfard, MR, Sharif, F, Song, YS & Kim, DY 2015, Optical unwrapping by triple illumination interferometer. in Photonic Instrumentation Engineering II. vol. 9369, 93690W, SPIE, Photonic Instrumentation Engineering II, San Francisco, United States, 15/2/11. https://doi.org/10.1117/12.2079536

Optical unwrapping by triple illumination interferometer. / Tayebi, Behnam; Jafarfard, Mohammad Reza; Sharif, Farnaz; Song, Young Sik; Kim, Dug Young.

Photonic Instrumentation Engineering II. Vol. 9369 SPIE, 2015. 93690W.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Here, we present a triple illumination phase interferometer to have a more flexible unwrapping measurement range for single shot optical unwrapping. Three beams of this interferometer illuminate a sample at different incident angles, three phases of the different incident angles are simultaneously recorded using three spatial frequencies. The different direction phases can be used for dual illumination optical unwrapping; as a result, the phase can be unwrapped by more than one measurement range. The feasibility of this technique is demonstrated by measuring a stepped object with heights of 150 and 660 μm. The smaller stepped phase is unwrapped by two measurement range; however, the phase of larger step is wrapped for only one of the measurement range.

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Tayebi B, Jafarfard MR, Sharif F, Song YS, Kim DY. Optical unwrapping by triple illumination interferometer. In Photonic Instrumentation Engineering II. Vol. 9369. SPIE. 2015. 93690W https://doi.org/10.1117/12.2079536