Short-coherence in-line phase-shifting infrared digital holographic microscopy for measurement of internal structure in silicon

Teli Xi, Jiazhen Dou, Jianglei Di, Ying Li, Jiwei Zhang, Chaojie Ma, Jianlin Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Short-coherence in-line phase-shifting digital holographic microscopy based on Michelson interferometer is proposed to measure internal structure in silicon. In the configuration, a short-coherence infrared laser is used as the light source in order to avoid the interference formed by the reference wave and the reflected wave from the front surface of specimen. At the same time, in-line phase-shifting configuration is introduced to overcome the problem of poor resolution and large pixel size of the infrared camera and improve the space bandwidth product of the system. A specimen with staircase structure is measured by using the proposed configuration and the 3D shape distribution are given to verify the effectiveness and accuracy of the method.

Original languageEnglish
Title of host publicationFifth International Conference on Optical and Photonics Engineering
EditorsAnand Krishna Asundi
PublisherSPIE
ISBN (Electronic)9781510613720
DOIs
StatePublished - 2017
Event5th International Conference on Optical and Photonics Engineering - Singapore, Singapore
Duration: 4 Apr 20177 Apr 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10449
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference5th International Conference on Optical and Photonics Engineering
Country/TerritorySingapore
CitySingapore
Period4/04/177/04/17

Keywords

  • Digital holographic microscopy
  • infrared imaging
  • phase-shifting technique
  • silicon

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