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Characterization, Selection, and Microassembly of Nanowire Laser Systems.
Dimitars Jevtics1, John McPhillimy1, Benoit Guilhabert1
1Institute of Photonics, SUPA Department of Physics, University of Strathclyde, Glasgow G1 1XQ, United Kingdom.
Nano Letters
|February 5, 2020
Summary
Scalable fabrication of semiconductor nanowire (NW) lasers is achieved by combining automated characterization with high-accuracy transfer printing. This method preserves device performance, enabling integrated photonic systems.
Area of Science:
- Optoelectronics
- Nanotechnology
- Materials Science
Background:
- Semiconductor nanowire (NW) lasers offer compact coherent optical sources.
- On-chip photonic systems require scalable methods for integrating randomly distributed NW lasers.
Purpose of the Study:
- To develop and validate high-throughput techniques for characterizing and transferring NW lasers.
- To assess the impact of transfer printing on NW laser performance and suitability for integrated systems.
Main Methods:
- Automated optical microscopy for high-throughput characterization of NW laser populations.
- High-accuracy transfer-printing with automatic spatial registration for device relocation.
- Statistical analysis of transferred and control devices to evaluate performance metrics.
Main Results:
- Successful characterization and binning of NW lasers based on threshold energy density.
- Demonstration that transfer printing does not cause measurable laser damage.
- Maintenance of threshold energy density and laser performance after transfer.
Conclusions:
- The combined characterization and transfer-printing approach provides a scalable solution for fabricating integrated photonic systems using NW lasers.
- The validated process preserves device quality, paving the way for reliable on-chip optical source integration.
