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Carrier-envelope-phase-stable, 1.2 mJ, 1.5 cycle laser pulses at 2.1 μm.

It is shown that a chirped periodically poled lithium niobate crystal is used to generate the ultrabroad spectrum needed for a 1.5 cycle pulse through difference frequency mixing of spectrally broadened pulse from a Ti:sapphire amplifier.
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Attosecond correlation dynamics

Photoemission of an electron is commonly treated as a one-particle phenomenon. With attosecond streaking spectroscopy we observe the breakdown of this single active-electron approximation by…
Springer Nature (opens in a new tab)

All-Glass 100 mm Diameter Visible Metalens for Imaging the Cosmos

Metasurfaces, optics made from subwavelength-scale nanostructures, have been limited to millimeter-sizes by the scaling challenge of producing vast numbers of precisely engineered elements over a…
PubMed (opens in a new tab)

Light-wave dynamic control of magnetism

This study unveils light-field coherent control of spin dynamics and macroscopic magnetic moments in the initial non-dissipative temporal regime and establishes optical frequencies as the speed limit of future coherent spintronic applications, spin transistors and data storage media.
Springer Nature (opens in a new tab)

Extreme ultraviolet metalens by vacuum guiding

Extreme ultraviolet (EUV) radiation is a key technology for material science, attosecond metrology, and lithography. Here, we experimentally demonstrate metasurfaces as a superior way to focus EUV…
Science (opens in a new tab)

Time Reversal Differentiation of FDTD for Photonic Inverse Design

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The speed limit of optoelectronics

Light-field driven charge motion links semiconductor technology to electric fields with attosecond temporal control. Motivated by ultimate-speed electron-based signal processing, strong-field…
Springer Nature (opens in a new tab)

Multifunctional wide-angle optics and lasing based on supercell metasurfaces

This work introduces a method based on supercell metasurfaces to demonstrate multiple independent optical functions at arbitrary large deflection angles with high efficiency and paves the way to novel methods to engineer the emission of optical sources.
Springer Nature (opens in a new tab)

Metasurfaces shaping ultrashort pulses in time and space (Conference Presentation)

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Electrical injection-locking dynamics of a frequency-modulated comb

The comb spacing of semiconductor comb lasers can be locked to an external reference by injecting a radio-frequency (RF) signal f inj close to the laser beat note round-trip frequency $f_{rt}^0$ [1]…
IEEE (opens in a new tab)
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