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24 April 2018 Fabrication of cadmium selenide quantum dots with laser ablation in superfluid helium
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Proceedings Volume 10712, Optical Manipulation Conference; 107120N (2018) https://doi.org/10.1117/12.2319016
Event: SPIE Structured Light, 2018, Yokohama, Japan
Abstract
We fabricated semiconductor cadmium selenide (CdSe) quantum dots via the pulsed laser ablation in the superfluid helium. The fabricated quantum dots showed blue-shifted fluorescence due to the strong quantum confinement effect. The fluorescence blinking phenomena were also observed indicating the single photon emission process. Our proposed scheme is a simple, robust, and reliable method to fabricate quantum dots and to introduce the highly fluorescence nanoparticles into superfluid helium appropriate for resonant optical manipulation and nano-tracers for liquid helium visualization.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yosuke Minowa, Tatsuro Suzuki, Kenji Setoura, Syoji Ito, Hiroshi Miyasaka, and Masaaki Ashida "Fabrication of cadmium selenide quantum dots with laser ablation in superfluid helium ", Proc. SPIE 10712, Optical Manipulation Conference, 107120N (24 April 2018); https://doi.org/10.1117/12.2319016
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