Fiber-based 3D nano-printed holography with individually phase-engineered remote points.

Area of Science:

• * Optics and Photonics
• * Nanotechnology
• * Digital Holography

Background:

• * Spatially controlled light fields are crucial for various scientific and technological applications.
• * Remote generation of complex light patterns, especially with phase control, presents a significant challenge.
• * Existing methods often lack the flexibility for intricate 3D intensity and phase manipulation.

Purpose of the Study:

• * To present a fiber-compatible concept for remote generation of complex 3D multi-foci light patterns.
• * To demonstrate control over intensity and relative phases of individual focal points.
• * To enable phase-controlled 3D digital holography over remote distances.

Main Methods:

• * Extension of the Huygens principle for interference-based pattern generation.
• * Implementation of holograms using 3D nano-printing on planar substrates and optical fibers.
• * Experimental validation and simulation of the proposed approach.

Main Results:

• * Successful remote generation of complex 3D multi-foci intensity patterns with controlled relative phases.
• * Achieved precise control over intensity and phase of individual focal points in a distributed array.
• * Demonstrated hologram implementation on single-mode fibers, creating ~200 foci over multiple planes.

Conclusions:

• * The developed interference-based approach offers an innovative pathway for remote phase-controlled 3D digital holography.
• * The technology shows significant potential for applications in quantum technology, life sciences, bioanalytics, and telecommunications.
• * Fields requiring precise excitation of optical resonances, such as nanophotonics and fiber optics, will greatly benefit.