Results 121 to 130 of about 708,136 (308)

1 PHz of Coherent Bandwidth from a Compact Fiber Device

open access: yesLaser &Photonics Reviews, EarlyView.
A coherent comb spectrum with an unprecedented bandwidth of 1 PHz, spanning from the deep ultraviolet (280 nm) to the mid‐infrared (2700 nm), is generated by a compact fiber device. The integrated, novel pulse purification technology enables broadband dispersion control and the synthesis of low‐noise, single‐cycle near‐infrared pulses with a clean ...
Sarah R. Hutter   +4 more
wiley   +1 more source

Femtosecond Laser Breaks the Lattice Symmetry and Induces Broadband Second Harmonic Generation in 3D Halide Perovskites

open access: yesLaser &Photonics Reviews, EarlyView.
3D halide perovskites have shown no second harmonic generation (SHG) due to the centrosymmetric nature. The femtosecond (fs) laser ablation breaks their inversion symmetry and formed microstructures of AmPbX3‐n, (0
Guan‐Feng Gao   +15 more
wiley   +1 more source

Room‐Temperature Mid‐Infrared Detection Using Metasurface‐Absorber‐Integrated Phononic Crystal Oscillator

open access: yesLaser &Photonics Reviews, EarlyView.
Room‐temperature mid‐infrared (MIR) detectors are demonstrated using lithium niobate surface acoustic wave phononic crystal oscillators integrated with metasurface absorbers. The devices exhibit rapid thermal response and simplified fabrication compared to suspended resonators.
Zichen Xi   +11 more
wiley   +1 more source

Cobalt–Oxygen Bond Homolysis in the Bench‐Stable (Salen*)Cobalt(III) Acetate Complex: Insight into the Organometallic Mediated Radical Polymerization of Diverse Monomers

open access: yesMacromolecular Chemistry and Physics, EarlyView.
The air‐stable [(Salen*)Co(OAc)] complex initiates the radical polymerization of vinyl monomers via Co–O bond homolysis, distinguishing it from classical air‐sensitive cobalt complexes relying on Co‐C bond cleavage. Accordingly, MMA polymerization proceeds via catalytic chain‐transfer while MA undergoes controlled OMRP involving two distinct initiation
Maxime Michelas   +5 more
wiley   +1 more source

Exact solutions of the harmonic oscillator plus non-polynomial interaction. [PDF]

open access: yesProc Math Phys Eng Sci, 2020
Dong Q   +4 more
europepmc   +1 more source

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