Ultra-fast all-optical memory based on hexagonal photonic crystal lattice on a GaAs substrate
Year: 2025
Type: article
Abstract: In this paper, a novel photonic crystal (PhC) all-optical memory is proposed. It is based on a hexagonal lattice of air holes on a GaAs substrate. The structure is numerically simulated using the finite difference time domain (FDTD) method. This structure utilizes the nonlinear Kerr effect properties of a photonic crystal cavity to achieve high-speed performance with a rise time of <0.21 ps. The high Q factor of the hexagonal cavity, combined with the use of Kerr material, results in reduced power consumption for both the data and bias signals, reaching below 3 μW/μm. Additionally, the reduction in the dimensions of the structure to approximately 30 μm 2 is significant and noteworthy compared to recent works. Our innovative design highlights significant advancements in speed and power efficiency for the designed all-optical memory, suggesting promising applications in photonic integrated circuits.
Authors: Dariush Jafari, Mohammad Danaie
Institution: Semnan University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,400
OpenAlex ID: W4410878719