115 citations · 514 across the 19 of their papers we have counts for
6 papers · 2 filters
High-brightness seven-octave carrier envelope phase-stable light source
Ugaitz Elu, Luke Maidment, Lenard Vamos +8
High-brightness sources of coherent and few-cycle-duration light waveforms with spectral coverage from the UV to the THz would offer unprecedented versatility and opportunities for…
Covariance spectroscopy of molecular gases using fs pulse bursts created by modulational instability in gas-filled hollow-core fiber
Mallika Irene Suresh, Philip St. J. Russell, Francesco Tani
We present a technique that uses noisy broadband pulse bursts generated by modulational instability to probe nonlinear processes, including infrared-inactive Raman transitions, in…
Spatio-temporal measurement of ionization-induced modal index changes in gas-filled PCF by prism-assisted side-coupling
Barbara M. Trabold, Mallika I. Suresh, Johannes R. Koehler +3
We report the use of prism-assisted side-coupling to investigate the spatio-temporal dynamics of photoionization in an Ar-filled hollow-core photonic crystal fiber. By launching fo…
Pump-probe study of plasma dynamics in gas-filled photonic crystal fiber using counter-propagating solitons
Mallika I. Suresh, Felix Köttig, Johannes R. Koehler +2
We present a pump-probe technique for monitoring ultrafast polarizability changes. In particular, we use it to measure the plasma density created at the temporal focus of a self-co…
Modulational-instability-free pulse compression in anti-resonant hollow-core photonic crystal fiber
F. Köttig, F. Tani, P. St. J. Russell
Gas-filled hollow-core photonic crystal fiber (PCF) is used for efficient nonlinear temporal compression of femtosecond laser pulses, two main schemes being direct soliton-effect s…
Efficient single-cycle pulse compression of an ytterbium fiber laser at 10 MHz repetition rate
F. Köttig, D. Schade, J. R. Koehler +2
Over the past years, ultrafast lasers with average powers in the 100 W range have become a mature technology, with a multitude of applications in science and technology. Nonlinear…