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Showing 1–8 of 8 results
Advanced filters: Author: Arkadev Roy Clear advanced filters

  • Here the authors provide the experimental demonstration of a widely tunable integrated frequency comb source unlocking the spectrum from the visible to the mid-infrared in a thin-film lithium niobate platform.

    • Arkadev Roy
    • Luis Ledezma
    • Alireza Marandi
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • Optical molecular sensors benefit many applications from fundamental science to industry. In this work, the authors leverage the formation dynamics of cavity solitons to achieve molecular sensing in the mid-infrared spectral region.

    • Robert M. Gray
    • Mingchen Liu
    • Alireza Marandi
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • Non-equilibrium and collective behaviors such as phase transitions in optical systems can lead to interesting applications in photonics. Here the authors demonstrate spectral phase transition in a ubiquitous nonlinear driven-dissipative system, the optical parametric oscillator.

    • Arkadev Roy
    • Saman Jahani
    • Alireza Marandi
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-9

  • The authors introduce and demonstrate cross-comb spectroscopy in the mid-infrared as a variant of dual-comb spectroscopy. It provides enhanced performance and allows mid-infrared spectral information to be obtained by near-infrared detection.

    • Mingchen Liu
    • Robert M. Gray
    • Alireza Marandi
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Dispersive coupling between two optical parametric oscillators induces a first-order phase transition in the system at a critical detuning. This manifests as a discontinuity in the dimer’s spectrum, which may be useful for enhanced sensing.

    • Arkadev Roy
    • Rajveer Nehra
    • Alireza Marandi
    Research
    Nature Physics
    Volume: 19, P: 427-434

  • The formation of ultra-short dissipative quadratic solitons is realized using optical parametric amplification at low pump energies and in the presence of substantial temporal walk-off between the pump and signal.

    • Arkadev Roy
    • Rajveer Nehra
    • Alireza Marandi
    Research
    Nature Photonics
    Volume: 16, P: 162-168

  • Researchers exploit the quadratic nonlinearity of lithium niobate nanowaveguides and demonstrate cavity-free all-optical switching. Switching energies down to 80 fJ, switching times down to ~46 fs and energy–time products of 3.7 × 10−27 J s are shown.

    • Qiushi Guo
    • Ryoto Sekine
    • Alireza Marandi
    Research
    Nature Photonics
    Volume: 16, P: 625-631