Frontiers in Optics + Laser Science 2022 (FIO, LS), Journal Year: 2022, Volume and Issue: unknown, P. FW1C.3 - FW1C.3
Published: Jan. 1, 2022
Here we demonstrate the optical switching with attosecond speed in a dielectric system. We will present capability of modulating reflectivity fused silica strong field following driver sub-femtosecond control resolution.
Language: Английский
ACS Photonics, Journal Year: 2024, Volume and Issue: 11(2), P. 334 - 338
Published: Feb. 2, 2024
The current revolution in information technology is built on the development of semiconductor transistors and electronics over several decades. However, these reached their advancement saturation limit speed size. Meanwhile, modern communication demands higher-speed faster communications. Hence, scientific community has started to search for a replacement technology. Recently, accelerated ultrafast laser science technology, including generation ultrashort synthesized pulses, opened door optoelectronics. For instance, field subcycle pulses allowed demonstrating all-optical switching with attosecond (10–18 second) speed, promising establish optical petahertz billion times than that typical transistors. Moreover, controlling time interval signals by synthesizing light resolution enables digital binary data encoding pulses. This would allow transferring beams long distances an enhanced 1 petahertz/s. Here, we present recent progress future optics electronics, applications life, remarkable potential impact
Language: Английский
Citations
17
Science Advances, Journal Year: 2023, Volume and Issue: 9(8)
Published: Feb. 22, 2023
Modern electronics are founded on switching the electrical signal by radio frequency electromagnetic fields nanosecond time scale, limiting information processing to gigahertz speed. Recently, optical switches have been demonstrated using terahertz and ultrafast laser pulses control enhance speed picosecond a few hundred femtoseconds scale. Here, we exploit reflectivity modulation of fused silica dielectric system in strong light field demonstrate (ON/OFF) with attosecond resolution. Moreover, present capability controlling complex synthesized ultrashort for data binary encoding. This work paves way establishing light-based petahertz speeds, several orders magnitude faster than current semiconductor-based electronics, opening new realm technology, communications, photonic processor technologies.
Language: Английский
Citations
36
Science Advances, Journal Year: 2024, Volume and Issue: 10(34)
Published: Aug. 21, 2024
Advances in attosecond spectroscopy have enabled tracing and controlling the electron motion dynamics matter, although they yielded insufficient information about dynamic space domain. Hence, ultrafast x-ray imaging tools been developed to image of matter real time space. The cutting-edge temporal resolution these is on order a few tens hundred femtoseconds, limiting atomic leaving out reach. Here, we obtained transmission microscope, which coined "attomicroscopy." We demonstrated this by diffraction measurements field-driven graphene. This tool would provide more insights into directly connect it structural real-time domains, opening door for long-anticipated real-life science applications quantum physics, chemistry, biology.
Language: Английский
Citations
11
Applied Physics B, Journal Year: 2024, Volume and Issue: 130(3)
Published: March 1, 2024
Language: Английский
Citations
6
Optics Letters, Journal Year: 2024, Volume and Issue: 49(10), P. 2549 - 2549
Published: April 8, 2024
The coherent interaction of extremely short light pulses with a resonant medium can result in the formation population difference gratings. Such gratings have been created by that are π/2 or smaller. This paper demonstrates microcavity Bragg-like mirrors be formed colliding two single-cycle attosecond self-induced transparency center two-level medium. parameters this structure quickly adjusted increasing number collisions, which showcases ability to control dynamic properties on sub-cycle time scale using pulses.
Language: Английский
Citations
6
Laser & Photonics Review, Journal Year: 2023, Volume and Issue: 17(4)
Published: Jan. 31, 2023
Abstract The quest for ever‐shorter optical pulses has been ongoing over half a century. Although few‐cycle have generated nearly 40 years, pulse lengths below the single‐cycle limit remained an elusive goal long time. For this purpose, waveform synthesizers, generating high‐energy, high‐average‐power via coherent combination of multiple covering different spectral regions, recently developed. They allow unprecedented control waveforms, spanning extremely broad range from ultraviolet to infrared. Such allows steering strong‐field interactions with increased degrees freedom. When driving high‐harmonic generation, tailored waveforms can produce bright attosecond trains and even isolated tunable spectra up soft X‐ray range. In paper recent progress on parametric hollow‐core fiber synthesizers is discussed. Newly developed seeding schemes; absolute, relative, phase measurement; techniques suitable are described. serial parallel synthesis based Ti:sapphire Ytterbium laser systems their latest applications in generation gaseous solid media, science, wakefield acceleration
Language: Английский
Citations
16
Optics Letters, Journal Year: 2023, Volume and Issue: 48(24), P. 6504 - 6504
Published: Nov. 10, 2023
We theoretically demonstrate the possibility to tune temporal waveform of unipolar pulses femtosecond duration emitted from a multilevel resonant medium. This is achieved through control medium response by properly adjusted sequence half-cycle or quasi-unipolar driving and spatial density profile centers along layer. show production optical varying profiles, like rectangular triangular ones, an extended layer
Language: Английский
Citations
13
Journal of the Optical Society of America B, Journal Year: 2024, Volume and Issue: 41(8), P. 1721 - 1721
Published: June 21, 2024
An optical Bragg-like microcavity can be formed when extremely short light pulses interacting coherently with the medium collide in resonant medium. Here we present an analytical approach, based on approximate solution of time-dependent Schrödinger equation, that reveals both cavity formation and its control by half-cycle colliding This approach allows calculation properties weak-field regime without need for complex numerical simulations. Beyond solutions, our results are confirmed simulations Maxwell-Bloch equations. Grating is also studied strong-field regime, where collisions self-induced transparency occur. The presented here reveal, to knowledge, a new type spatio-temporal photonic crystal form micro-cavities simple atomic obtained demonstrate feasibility attosecond switching pulses.
Language: Английский
Citations
4
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: May 9, 2025
Abstract In the last decade, advancements in attosecond spectroscopy have allowed researchers to study and manipulate electron dynamics condensed matter via ultrafast light fields, offering possibility realise optoelectronic devices. Here, we report generation of light-induced quantum tunnelling currents graphene phototransistors by laser pulses an ambient environment. This effect provides access instantaneous field-driven current, demonstrating a current switching (ON OFF) on ~630 scale (~1.6 petahertz speed). We show tunability enhancement phototransistor conductivity controlling density photoexcited charge carriers at different pump powers. exploited this capability demonstrate various logic gates. The reported approach under conditions is suitable for development optical transistors, lightwave electronics, computers.
Language: Английский
Citations
0
ACS Photonics, Journal Year: 2023, Volume and Issue: 10(8), P. 2866 - 2873
Published: July 28, 2023
The generation and direct time-domain sampling of ultrashort ultra-broadband laser pulses are at the forefront time-resolved spectroscopy attosecond science. Although high-energy (>1 μJ) single-cycle low repetition rates (∼kHz) can be generated by many techniques like spectral broadening field synthesis characterized using nonlinear optical techniques, realizing such capabilities for low-energy (<1 nJ) high-repetition-rate (∼80 MHz) is more challenging. Here, we demonstrate carrier-envelope-phase (CEP)-stable, (∼1.1 octave bandwidth) a very high rate three-channel light-field-synthesizer spanning visible near-infrared frequency range. electric fields were directly sampled in an on-chip nanodevice. We show that electron tunneling currents measured as function delay between two slightly carrier-frequency-shifted kHz) nanodevice enable pulses. demonstrated measurement light pave way broad applications near-field ultrafast spectroscopies light-wave electronics.
Language: Английский
Citations
7