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Related Concept Videos

Design Example01:23

Design Example

423
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
423

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Related Experiment Video

Updated: Nov 6, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Bioinspired Dual-Mode Temporal Communication via Digitally Programmable Phase-Change Materials.

Shihong Deng1, Limei Huang1, Jingjun Wu1,2

  • 1State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.

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Summary

Inspired by ground squirrels, this study demonstrates a novel temporal communication system using a phase-change material. This material allows for live evolution of optical and thermal images, encoding time-specific information for advanced applications.

Keywords:
digital programmable materialsinfrared patternsphase-change materialssecured temporal communication

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Area of Science:

  • Materials Science
  • Optics and Photonics
  • Biomimicry

Background:

  • Switchable optical properties are crucial for technologies like communication and sensing, typically requiring external stimuli.
  • Ground squirrels use infrared emission for communication, offering a natural model for dynamic signaling.

Purpose of the Study:

  • To demonstrate a novel temporal communication system inspired by ground squirrel infrared signaling.
  • To develop a method for encoding time-specific information using dynamically evolving optical and thermal images.

Main Methods:

  • Utilizing a digitally light-cured polymeric phase-change material with pixelated control over crystallization kinetics.
  • Leveraging the live evolution of optical transparency and thermal enthalpy for information encoding.

Main Results:

  • Achieved live evolution of optical transparency for temporal optical communication.
  • Demonstrated reversible retrieval of time-specific information via self-evolving infrared thermal images.
  • Developed a versatile dual-mode temporal communication system.

Conclusions:

  • The developed system enables temporal communication through dynamically controlled optical and thermal properties.
  • This biomimetic approach offers potential for secured communication, optics, thermal regulation, and advanced printing techniques.