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Ultrafast all-optical logic gates, optical limiting and all-optical diode with Hibiscus sabdariffa dye

ANAM SAIFI1, SUKHDEV ROY1,*

Affiliation

  1. Department of Physics and Computer Science, Dayalbagh Educational Institute, Dayalbagh, Agra-282005, India

Abstract

Femtosecond saturable and reverse saturable absorption in Hibiscus sabdariffa dye has been theoretically studied with 40 fs laser pulses at 515 nm and 1030 nm, respectively. Theoretical simulations agree well with reported experimental results. Ultrafast all-optical OR and AND logic gates at 515 nm, as well as NOT, universal NOR and NAND logic gates at 1030 nm have been designed based on optimization of nonlinear absorption to achieve enhanced contrast and low-power operation. An optical limiter and all-optical diode have also been designed demonstrating the material’s ultrafast performance, tunability, stability, and versatility for practical applications..

Keywords

Hibiscus sabdariffa dye, Ultrafast nonlinear absorption, All-optical logic gates, All-optical diode, Optical limiting.

Submitted at: Feb. 26, 2025
Accepted at: April 6, 2026

Citation

ANAM SAIFI, SUKHDEV ROY, Ultrafast all-optical logic gates, optical limiting and all-optical diode with Hibiscus sabdariffa dye, Journal of Optoelectronics and Advanced Materials Vol. 28, Iss. 3-4, pp. 134-142 (2026)