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Published on: August 27, 2009
Prism coupling and visualization of surface nanoscale axial photonic structures
Anatoliy Savchenkov1, Zijie Wang2, Manuel Crespo-Ballesteros2
1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
Communications Engineering
|June 1, 2026
Summary
Surface nanoscale axial photonics (SNAP) enables precise miniature optical device fabrication. New techniques allow visualization and coupling, enhancing robustness and enabling on-chip integration for computing and telecommunications.
Area of Science:
- Photonics and optical engineering
- Nanotechnology and materials science
Background:
- Surface nanoscale axial photonics (SNAP) offers subangstrom precision for miniature optical devices.
- Current SNAP devices lack robustness and simple identification, hindering practical application and controlled alignment.
Purpose of the Study:
- To introduce techniques for direct visualization of nanoscale SNAP features.
- To enable efficient light coupling to fused-silica SNAP microresonators for improved device control and integration.
Main Methods:
- Development of direct visualization techniques for nanoscale SNAP features.
- Utilization of evanescent-field prism couplers for efficient light coupling to SNAP microresonators.
Main Results:
- Successful direct visualization of nanoscale SNAP features.
- Achieved efficient coupling to fused-silica SNAP microresonators, enabling precise light-resonator interaction control.
- Established a scalable and robust route for on-chip integration of SNAP devices.
Conclusions:
- The developed techniques overcome limitations of current SNAP devices, enhancing their robustness and applicability.
- These advances pave the way for practical on-chip integration of SNAP devices.
- Opens new opportunities for SNAP in computing, telecommunications, sensing, and optical science.
