Strain -multiplexing optical-tuning based on single-pulsed holographic nanostructures.

Area of Science:

• Optics and Photonics
• Materials Science
• Nanotechnology

Background:

• Holographic nanostructures are crucial for displays, data storage, imaging, and security.
• Current nanofabrication methods for personalized holography are time-consuming, costly, and complex.
• There is a need for rapid, efficient, and low-cost holographic techniques applicable to various materials.

Purpose of the Study:

• To develop a rapid, efficient, and low-cost method for creating personalized holographic nanostructures.
• To demonstrate the fabrication of 1D/2D nanostructures on diverse substrates using laser ablation.
• To explore the tunability of optical properties and potential applications as sensors.

Main Methods:

• Utilized single-pulsed nanosecond (ns) laser ablation in Denisyuk reflection mode.
• Fabricated holographic multilayer metastructures (HMMs) on rigid glass, soft polymers, gelatin, and conductive/non-conductive materials.
• Investigated optical property tunability with monochromatic and broadband light sources.
• Assessed surface morphology changes under mechanical force for sensing applications.

Main Results:

• Successfully recorded 1D/2D nanostructures on various rigid and flexible substrates.
• Demonstrated tunability of optical properties by altering nanostructure morphology via mechanical force.
• Engineered nanostructures on edible gelatin and soft polymers for food industry and optoelectronics.
• Developed a functional optical shape and force sensor based on tunable nanostructures.

Conclusions:

• Single-pulsed ns laser ablation offers a rapid, versatile, and cost-effective approach for personalized holography.
• The technique enables the creation of tunable holographic nanostructures on diverse materials, including edible substrates.
• This advancement holds significant potential for applications in advanced displays, data storage, food industries, and optoelectronics.