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Balanced plane-mirror heterodyne interferometer with subnanometer periodic nonlinearity

  • Peng Cheng Hu*
  • , Peng Chen
  • , Xue Mei Ding
  • , Jiu Bin Tan
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A balanced plane-mirror heterodyne interferometer with a polarizing beam splitter used to recombine the reference and measurement beams is proposed to reduce periodic nonlinearity and to eliminate thermal error. Experimental results indicated that the periodic error due to ghost reflection was kept within ±36 pm, and the interferometer proposed was immune from thermal error.

Original languageEnglish
Pages (from-to)5448-5452
Number of pages5
JournalApplied Optics
Volume53
Issue number24
DOIs
StatePublished - 20 Aug 2014

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