17 citations · 29 across the 7 of their papers we have counts for
7 papers
Fundamental Limits on Fiber-Based Electron Acceleration and How to Overcome Them
Aku Antikainen, Siddharth Ramachandran
To accelerate ultra-relativistic charged particles, such as electrons, using an electromagnetic pulse along a hollow-core waveguide, the pulse needs to have a longitudinal electric…
Analytical Expressions for Effective Indices of Modes of Optical Fibers Near and Beyond Cutoff
Aku Antikainen, Robert W. Boyd
We derive an analytical expression for the effective indices of modes of circular step-index fibers valid near their cutoff wavelengths. The approximation, being a first-order Tayl…
Controlling nonlinear rogue wave formation using the coherence length of phase noise
Saumya Choudhary, A. Nicholas Black, Aku Antikainen +1
Weak phase noise present on an optical field can be amplified by a self-focusing nonlinearity and form intense "rogue wave" features. Here, we study the effect of the coherence len…
Systematic control of Raman scattering with topologically induced chirality of light
Xiao Liu, Zelin Ma, Aku Antikainen +1
Stokes Raman scattering is known to be a particularly robust nonlinearity, occurring in virtually every material, with spectra defined by the material and strengths dependent on th…
Femtosecond Pulse Trains through Dual-Pumping of Optical Fibers: Role of Third-Order Dispersion
Aku Antikainen, Govind P. Agrawal
Generation of high-repetition-rate, femtosecond, soliton pulse trains through dual-wavelength pumping of a dispersion-decreasing fiber is studied numerically. The achievable shorte…
Lossless Suppression and Enhancement of Soliton Self-Frequency Shifts
Francisco R. Arteaga-Sierra, Aku Antikainen, Govind P. Agrawal
Soliton self-frequency shifts (SSFS) can be suppressed in optical fibers through spectral recoil, but this process leads to losses through continuous transfer of energy to a disper…
Dynamics of Soliton Cascades in Fiber Amplifiers
F. R. Arteaga-Sierra, A. Antikainen, Govind P. Agrawal
We study numerically the formation of cascading solitons when femtosecond optical pulses are launched into a fiber amplifier with less energy than required to form a soliton of equ…