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Trapping of Micro Particles in Nanoplasmonic Optical Lattice
Published on: September 5, 2017
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Nanoplasma-enabled picosecond switches for ultrafast electronics
Mohammad Samizadeh Nikoo1, Armin Jafari1, Nirmana Perera1
1Power and Wide-band-gap Electronics Research Laboratory (POWERlab), Institute of Electrical Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Nature
|March 28, 2020
Summary
Researchers developed a novel nanoscale plasma (nanoplasma) electronic switch for ultrafast signal switching. This nanoplasma device achieves picosecond switching speeds, significantly outperforming conventional transistors for high-power terahertz signal generation.
Area of Science:
- Solid-state electronics
- Nanoscale plasma devices
- Ultrafast electronics
Background:
- Ultrawide-band signals and terahertz waves have diverse applications in quantum measurements, imaging, sensing, biological treatments, and communications.
- High-speed electronic switches are crucial for these applications, but conventional devices like field-effect and bipolar junction transistors are limited by output capacitance.
- Existing technologies struggle to meet the demand for high-speed, high-amplitude signal switching required for advanced electronic systems.
Purpose of the Study:
- To demonstrate a novel on-chip, all-electronic device utilizing nanoscale plasma (nanoplasma) for ultrafast signal switching.
- To achieve picosecond switching speeds with high-amplitude output signals, overcoming limitations of conventional electronic switches.
- To explore the potential of nanoplasma devices for high-power terahertz signal generation and integration into various applications.
Main Methods:
- Development of an on-chip, all-electronic device based on nanoscale plasma.
- Characterization of switching speed and rise times under high electric fields within the nanoplasma.
- Integration of nanoplasma switches with dipole antennas for terahertz signal emission.
Main Results:
- Achieved ultrafast switching speeds exceeding 10 volts per picosecond, significantly faster than field-effect transistors and conventional switches.
- Measured extremely short rise times down to five picoseconds, limited by the measurement setup.
- Generated high-power terahertz signals with a power-frequency trade-off of 600 milliwatts terahertz squared by integrating nanoplasma switches with antennas.
Conclusions:
- The demonstrated nanoplasma switch offers unprecedented picosecond switching speeds and high-power terahertz signal generation capabilities.
- The device's compactness and ease of integration pave the way for advancements in imaging, sensing, communications, and biomedical fields.
- Nanoplasma technology represents a significant leap forward in ultrafast electronics, enabling next-generation high-performance systems.
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