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Related Experiment Video

Updated: Jun 26, 2026

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

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Fast electroholographic switching.

Noam Sapiens¹, Aharon Weissbrod, Aharon J Agranat

¹Department of Applied Physics, The Benin School of Engineering and Computer Science, The Hebrew University, Jerusalem, Israel. ngem3@yahoo.com

|February 3, 2009

Summary

This summary is machine-generated.

Electroholographic switching achieved a 13 ns rise time using a doped potassium lithium tantalate crystal. This fast optical switching enables advanced wavelength division multiplexing in fiber networks.

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Area of Science:

Optoelectronics
Materials Science

Background:

Electroholography offers wavelength-selective optical switching.
Fast switching is crucial for modern optical networks.

Purpose of the Study:

To demonstrate electroholographic switching with a rapid rise time.
To explore the potential of doped potassium lithium tantalate for optical networking.

Main Methods:

Utilized a copper and titanium doped potassium lithium tantalate crystal.
Operated the crystal in the g11/g12 configuration, maintaining Bragg condition.
Achieved switching with a 13 ns rise time at 17°C.

Main Results:

Demonstrated electroholographic switching with a 13 ns rise time.
Successfully operated the crystal above its Curie temperature (10°C).
Confirmed Bragg condition fulfillment across applied field levels.

Conclusions:

Electroholographic switching is feasible with sub-20 ns rise times.
This technology supports fast wavelength addressing in optical fiber networks.
Potential applications include optical packet switching and wavelength division multiplexing.