Related Experiment Video
Updated: Dec 2, 2025
10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
11.9K
Picosecond solid-state generator with a peak power of 50 GW.
E A Alichkin1, M S Pedos1, A V Ponomarev1
1Institute of Electrophysics, UB, RAS, Yekaterinburg 620016, Russia.
The Review of Scientific Instruments
|November 3, 2020
Summary
This study demonstrates a picosecond solid-state pulsed system that amplifies power and shortens pulse duration using magnetic compression lines (MCLs). The system achieves significant increases in voltage and power rise rates for high-power pulsed applications.
Area of Science:
- Physics
- Electrical Engineering
Background:
- High-power pulsed systems require efficient energy compression.
- Solid-state pulsed systems offer advantages in reliability and size.
Purpose of the Study:
- To describe a picosecond solid-state pulsed system utilizing magnetic compression lines (MCLs) for power amplification and pulse duration reduction.
- To investigate the performance of a three-stage MCL system for generating high-power picosecond pulses.
Main Methods:
- Utilized a semiconductor opening switch (SOS) for initial pulse generation.
- Employed three successive magnetic compression lines (MCL1-MCL3) operating in MCL mode.
- Conducted numerical simulations to analyze the MCL3 line operation and electromagnetic field dynamics.
Main Results:
- Achieved a power amplification from 6 GW to 54 GW and a duration decrease from 7 ns to 170 ps.
- Increased voltage rise rate by ~130 times (to 14.8 MV/ns) and power rise rate by ~350 times (to 0.7 TW/ns).
- Simulations revealed pulse front sharpening, oscillation excitation, and power amplification leading to saturation.
Conclusions:
- The described picosecond solid-state pulsed system effectively amplifies pulse power and reduces duration using cascaded MCLs.
- The system demonstrates potential for generating ultra-high power density pulses with rapid voltage and power rise rates.
Related Concept Videos
01:10Generating Electromagnetic Radiations
6.0K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
6.0K
01:15Van de Graaff Generator
2.1K
Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
2.1K
01:19DC Generator
1.7K
An alternator converts mechanical energy into electrical energy that varies sinusoidally, resulting in AC current. Meanwhile, a DC generator converts mechanical energy into electrical energy, which are DC pulses with the same polarity. The construction of a DC generator is similar to that of an alternator, except that the pair of slip rings is replaced by a single split ring, also called a commutator. The commutator functions like a periodic rotary switch; it changes the contacts with the...
1.7K
01:22Instantaneous Power
734
Instantaneous power is important in electrical circuits, mainly when dealing with sinusoidal input. Instantaneous power, denoted as p(t), results from the multiplication of the instantaneous voltage (v(t)) across an element and the instantaneous current (i(t)) flowing through it. This relationship adheres to the passive sign convention and represents a fundamental principle in electrical engineering.
734
01:16Maximum Power Transfer
678
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
678
01:21Generator Voltage Control
427
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand, use...
427