On-chip petahertz electronics for single-shot phase detection

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 23, 2024

Attosecond science has demonstrated that electrons can be controlled on the sub-cycle time scale of an optical waveform, paving way towards frequency electronics. However, these experiments historically relied high-energy laser pulses and detection not suitable for microelectronic integration. For practical electronics, a system integration capable generating detectable signals with low pulse energies is needed. While current from plasmonic nanoantenna emitters driven at frequencies, charge yields have been significant limitation. In this work we demonstrate large-scale electrically connected networks, when in concert, enable sufficient single-shot carrier-envelope phase repetition rates exceeding tens kilohertz. We only show limitations CEP techniques overcome, but also flexible approach to electronics general, enabling future applications such as high sensitivity petahertz-bandwidth electric field sampling or logic-circuits.

Language: Английский

Generation of subfemtosecond ultraviolet pulses by three-color near-infrared ionizing fields

Optics Letters, Journal Year: 2025, Volume and Issue: 50(7), P. 2207 - 2207

Published: Feb. 24, 2025

We propose a method for generating extremely short (few- and even subcycle) ultraviolet (UV) pulses with the use of three-color ionizing fields. demonstrate that low-order combination frequencies can form supercontinuum up to fifth harmonic fundamental field. This effect is achieved by using fields two weak components detuned from half frequency intense field, which be obtained an optical parametric generator. Our calculations based on solution time-dependent Schrödinger equation helium atom show near-infrared field duration 25 fs result in UV pulse central wavelength about 300 nm full width at maximum intensity 0.9 fs.

Language: Английский

Quantitative Pulse Characterization of Octave Spanning Pulses in the MIR

Published: Jan. 1, 2024

We report on the pulse characterization of octave spanning pulses in mid-infrared. By adapting two-dimensional shearing interferometry, we achieve precise quantitative measurements pulses.

Language: Английский