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Updated: Jun 3, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Excitation Dependent Nonconventional Afterglow for 6D Dynamic Encryptions.

Shu-Yue Yang1, Wen-Ting Wu2, Guang-Yue Li3

  • 1College of Sciences, College of Energy Storage, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)
|June 2, 2026
PubMed
Summary
This summary is machine-generated.

Researchers developed excitation-dependent afterglow in polyesters using metaboric acid (MBA). This novel approach enables tunable colors for advanced applications like 6D dynamic encryption, overcoming limitations in nonconventional luminescent materials.

Keywords:
6D encryptionaliphatic polyestersexcitation‐dependent afterglownonconventional luminescent

Related Experiment Videos

Last Updated: Jun 3, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Luminescence

Background:

  • Nonconventional luminescent materials lacking aromatic chromophores are of significant interest.
  • Achieving visible-light persistent luminescence in these materials is challenging.

Purpose of the Study:

  • To develop intrinsic excitation-dependent afterglow in aliphatic polyesters.
  • To explore tunable emission colors and advanced applications.

Main Methods:

  • Hybridization of aliphatic polyesters with metaboric acid (MBA).
  • Tuning excitation sources (254 to 405 nm) to observe afterglow shifts.
  • Doping with commercial dyes to achieve multicolor emission via triplet-to-singlet Förster resonance energy transfer (TS-FRET).

Main Results:

  • Intrinsic excitation-dependent afterglow observed in MBA-polyester composites, with emission peaks shifting from 431 to 540 nm.
  • Afterglow color tunable from deep blue to red by doping.
  • Fabrication of composites into 3D artwares and anti-counterfeiting labels.
  • Demonstration of a 6D dynamic encryption platform using a luminescent magic cube.

Conclusions:

  • A novel composite-induced strategy for intrinsic excitation-dependent afterglow in aliphatic polyesters was established.
  • The developed materials show pioneering applications in advanced information encryption.
  • The strategy offers a pathway for creating functional luminescent polymers.