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Nano-manipulation of diamond-based single photon sources
E Ampem-Lassen1, D A Simpson, B C Gibson
1Quantum Communications Victoria, School of Physics, The University of Melbourne, Parkville 3010, Australia.
Optics Express
|July 8, 2009
Summary
Researchers developed a nano-scale manipulation technique for diamond crystals using electron microscopy and optical fibers. This method successfully transferred a single-photon source onto an optical fiber, preserving its quantum properties.
Area of Science:
- Quantum physics
- Nanotechnology
- Materials science
Background:
- Precise manipulation of nanoscale particles is essential for advancing quantum technologies.
- Developing methods for controlled placement of quantum emitters is a key challenge.
Purpose of the Study:
- To present a novel technique for manipulating diamond nanocrystals at the nanoscale.
- To demonstrate the transfer of a single nitrogen-vacancy center in diamond onto an optical fiber endface.
Main Methods:
- Utilized a scanning electron microscope for high-resolution imaging and control.
- Employed a nano-manipulator for precise positioning of the diamond crystal.
- Used custom tapered optical fiber probes for manipulation and coupling.
Main Results:
- Successfully manipulated and placed a ~300 nm diamond crystal containing a single nitrogen-vacancy center onto an optical fiber.
- The quantum emission properties of the nitrogen-vacancy center remained consistent after manipulation.
Conclusions:
- The developed technique enables reliable nanoscale manipulation of diamond crystals for quantum applications.
- This method preserves the integrity and functionality of single-photon sources after transfer.
