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Photonics
Volume 12
Issue 7
10.3390/photonics12070631
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

An Optical Date Flip-Flop Based on the Dynamic Coding of a Layered VO2 Metastructure

by
Na Pei
1,
Zhi-Cheng Xu
2,
Jia-Yuan Zhang
3,
Heng-Jing Liu
3 and
Hai-Feng Zhang
3,*
1
School of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
2
School of Foreign Languages, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
3
College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
*
Author to whom correspondence should be addressed.
Photonics 2025, 12(7), 631; https://doi.org/10.3390/photonics12070631
Submission received: 6 May 2025 / Revised: 6 June 2025 / Accepted: 20 June 2025 / Published: 20 June 2025
Versions Notes

Abstract

A vanadium dioxide (VO2)-based layered metastructure is proposed that enables dynamic optical encoding in the range of 15.5 GHz to 16 GHz through synergistic temperature and magnetic field modulation. By utilizing sequential temperature control, an optical date flip-flop (DFF) functionality can be achieved. The VO2 component of the metastructure exhibits an insulator-to-metal phase transition under thermal regulation, accompanied by significant changes in its optical properties. Furthermore, by optimizing the sequential temperature-control strategy, an optical DFF is successfully implemented whose output state can be dynamically controlled by the data input (D), timing control port (T), and state control port (B). A novel technical approach is provided for programmable photonic devices, dynamic optical information storage, and optical computing systems.
Keywords: metastructure; dynamic coding; vanadium dioxide; optical trigger; photonic device metastructure; dynamic coding; vanadium dioxide; optical trigger; photonic device

Share and Cite

MDPI and ACS Style

Pei, N.; Xu, Z.-C.; Zhang, J.-Y.; Liu, H.-J.; Zhang, H.-F. An Optical Date Flip-Flop Based on the Dynamic Coding of a Layered VO2 Metastructure. Photonics 2025, 12, 631. https://doi.org/10.3390/photonics12070631

AMA Style

Pei N, Xu Z-C, Zhang J-Y, Liu H-J, Zhang H-F. An Optical Date Flip-Flop Based on the Dynamic Coding of a Layered VO2 Metastructure. Photonics. 2025; 12(7):631. https://doi.org/10.3390/photonics12070631

Chicago/Turabian Style

Pei, Na, Zhi-Cheng Xu, Jia-Yuan Zhang, Heng-Jing Liu, and Hai-Feng Zhang. 2025. "An Optical Date Flip-Flop Based on the Dynamic Coding of a Layered VO2 Metastructure" Photonics 12, no. 7: 631. https://doi.org/10.3390/photonics12070631

APA Style

Pei, N., Xu, Z.-C., Zhang, J.-Y., Liu, H.-J., & Zhang, H.-F. (2025). An Optical Date Flip-Flop Based on the Dynamic Coding of a Layered VO2 Metastructure. Photonics, 12(7), 631. https://doi.org/10.3390/photonics12070631

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