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Related Experiment Video

Updated: May 9, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Multiwavelength parallel phase-shifting digital holography using angular multiplexing.

Tatsuki Tahara¹, Yasunori Ito, Yonghee Lee

¹Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan.

|August 2, 2013

Summary

This summary is machine-generated.

This study introduces a novel single-shot digital holography method to capture multiwavelength complex amplitude data using one sensor. The technique effectively removes unwanted light waves, enabling detailed object wave recording without color filters.

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Area of Science:

Optics and Photonics
Digital Holography
Image Sensing

Background:

Traditional digital holography often requires multiple sensors or complex setups for multiwavelength recording.
Extracting full complex amplitude information (amplitude and phase) is crucial for many optical applications.

Purpose of the Study:

To develop a single-shot digital holography technique for recording multiwavelength and complex amplitude information.
To eliminate the need for color filters in multiwavelength holographic recording.

Main Methods:

Utilized single-shot digital holography with a monochromatic image sensor.
Applied parallel phase-shifting interferometry to remove zeroth-order and conjugate waves.
Employed angular multiplexing for separate recording of object wave complex amplitude at each wavelength.

Main Results:

Successfully recorded multiwavelength complex amplitude information from a single hologram.
Demonstrated the removal of zeroth-order and conjugate images for each wavelength.
Verified the effectiveness of the proposed technique through experimental validation.

Conclusions:

The proposed single-shot digital holography method is effective for capturing multiwavelength complex amplitude data.
This technique simplifies multiwavelength holographic recording by eliminating the need for color filters and complex sensor arrays.