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Geometric Phase-Shift-Based Phase Modulation SLM Using Dual In-Plane Switching Liquid Crystal

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper, we propose a dual-panel configuration utilizing commercial in-plane switching (IPS) liquid crystal panels for holographic complex modulation. Phase modulation is achieved through symmetrically-stacked IPS panels, using geometric phase shift to expand modulation range beyond conventional dynamic phase methods. Our demonstration includes a look-up table that maps grayscale inputs to geometric phase shifts. Experimental results verify expansion of phase modulation range using this dual-panel system.

Original languageEnglish
Pages (from-to)1548-1550
Number of pages3
JournalDigest of Technical Papers - SID International Symposium
Volume56
Issue number1
DOIs
Publication statusPublished - 2025
EventInternational Symposium, Seminar, and Exhibition, Display Week 2025 - San Jose, United States
Duration: 12 May 202516 May 2025

Bibliographical note

Publisher Copyright:
© 2025 The Society for Information Display.

Keywords

  • Geometric phase shift
  • Holographic display
  • In-plane switching LC
  • Phase spatial light modulator

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