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Showing 1–13 of 13 results
Advanced filters: Author: Milan Delor Clear advanced filters

  • The authors advance the foundations of exciton-polariton transport based on a field-theoretical approach. This provides microscopic insight on the experimentally observed group velocity renormalization effect.

    • Wenxiang Ying
    • Benjamin X. K. Chng
    • Pengfei Huo
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • An optical method images nonlinear optical processes in waveguides with femtosecond and nanometre precision. The approach is used to achieve phase-matched second-harmonic generation in 3R-MoS2 waveguides.

    • Ding Xu
    • Zhi Hao Peng
    • Milan Delor
    Research
    Nature Nanotechnology
    Volume: 20, P: 374-380

  • Exciton-polaritons are part-light part-matter states in semiconductors. Here the authors leverage momentum-resolved optical microscopy to image ballistic and diffusive propagation of exciton-polaritons on femtosecond scales.

    • Ding Xu
    • Arkajit Mandal
    • Milan Delor
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Researchers created a periodically poled van der Waals semiconductor (3R-MoS2) and achieved a macroscopic frequency conversion efficiency of 0.03% over a thickness of 3.4 μm. The quasi-phase-matched second harmonic signal surpasses the usual quadratic enhancement by 50% and broadband generation of photon pairs at telecom wavelength is demonstrated with a coincidence-to-accidental ratio of 638 ± 75.

    • Chiara Trovatello
    • Carino Ferrante
    • P. James Schuck
    Research
    Nature Photonics
    Volume: 19, P: 291-299

  • With recent and improved understanding of how nuclear and electronic degrees of freedom can interact with each other comes the opportunity to directly control electronic processes. Now it has been shown that ultrafast vibrational excitation can direct light-induced intramolecular electron transfer along a specific path.

    • Milan Delor
    • Stuart A. Archer
    • Julia A. Weinstein
    Research
    Nature Chemistry
    Volume: 9, P: 1099-1104

  • Hyperbolic exciton polaritons (HEPs) are anisotropic light-matter excitations with promising applications, but their steady-state observation is challenging. Here, the authors report experimental evidence of HEPs in a van der Waals magnet, CrSBr, via cryogenic infrared near-field microscopy.

    • Francesco L. Ruta
    • Shuai Zhang
    • D. N. Basov
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9

  • Manipulating chemical reactions using laser pulses to control electron transfer is an attractive goal, however much of the underlying physics remains unexplored. Here the authors analyse and explain the intramolecular electronic transfer occurring during charge-separation in acetylene, a model donor-bridge-acceptor molecule.

    • Xunmo Yang
    • Theo Keane
    • Eric R. Bittner
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8

  • Excitons in the electronvolts range are found to couple strongly to coherent magnons in hundreds of microelectronvolts in an atomically thin two-dimensional antiferromagnetic semiconductor.

    • Youn Jue Bae
    • Jue Wang
    • Xiaoyang Zhu
    Research
    Nature
    Volume: 609, P: 282-286

  • The ultrafast and mode-specific infrared excitation of several donor–bridge–acceptor (DBA) assemblies in solution has been shown to modulate their light-induced electron transfer properties. New insights are afforded into the role of vibrational processes immediately following light absorption in charge-transfer molecules and a recipe for efficient ‘vibrational control’ of electron transfer is proposed.

    • Milan Delor
    • Theo Keane
    • Julia A. Weinstein
    Research
    Nature Chemistry
    Volume: 7, P: 689-695