49 citations · 76 across the 9 of their papers we have counts for
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Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibres
Ang Deng, Trivikramarao Gavara, Muhammad Rosdi Abu Hassan +2
We demonstrate a fibre-based approach that generates mid-infrared femtosecond pulses in the 3-4 μm spectral region with microjoule-level single pulse energy. This is realised in a…
Empirical formulae for hollow-core antiresonant fibers: dispersion and effective mode area
Imran Hasan, Nail Akhmediev, Wonkeun Chang
We present empirical formulae that can provide dispersion and average effective area of the fundamental mode in hollow-core antiresonant fibers. The formulae draw on the structural…
Vacuum-UV to IR supercontinuum in hydrogen-filled photonic crystal fiber
Federico Belli, Amir Abdolvand, Wonkeun Chang +2
Although supercontinuum sources are readily available for the visible and near infrared, and recently also for the mid-IR, many areas of biology, chemistry and physics would benefi…
High Pressure Gases in Hollow Core Photonic Crystal Fiber:A New Nonlinear Medium
Mohiudeen Azhar, Gordon Wong, Wonkeun Chang +2
The effective Kerr nonlinearity of hollow-core kagome-style photonic crystal fiber (PCF) filled with argon gas increases over 100 times when the pressure is increased from 1 to 150…
Thermo-modulational interband susceptibility and ultrafast temporal dynamics in nonlinear gold-based plasmonic devices
Andrea Marini, Matteo Conforti, Giuseppe Della Valle +7
Starting from first principles, we theoretically model the nonlinear temporal dynamics of gold-based plasmonic devices resulting from the heating of their metallic components. At o…
Ionization-induced asymmetric self-phase modulation and universal modulational instability in gas-filled hollow-core photonic crystal fibers
Mohammed F. Saleh, Wonkeun Chang, John C. Travers +2
We study theoretically the propagation of relatively long pulses with ionizing intensities in a hollow-core photonic crystal fiber filled with a Raman-inactive gas. Due to photoion…