Francisco R. Arteaga-Sierra

• Dr.Sc.
• Researcher at Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy

In the present paper we study the influence of the Coulomb potential on the real and imaginary parts of the plasma-induced susceptibility in a photoionized gas. We show that the real part of the susceptibility is more than one order of magnitude larger due to the action of a Coulomb potential. Surprisingly, the long-range Coulomb potential of the a...

Many physical systems display quantized energy states. In optics, interacting resonant cavities show a transmission spectrum with split eigenfrequencies, similar to the split energy levels that result from interacting states in bonded multi-atomic—that is, molecular—systems. Here, we study the nonlinear dynamics of photonic diatomic molecules in li...

Many physical systems display quantized energy states. In optics, interacting resonant cavities show a transmission spectrum with split eigenfrequencies, similar to the split energy levels that result from interacting states in bonded multi-atomic, i.e. molecular, systems. Here, we study the nonlinear dynamics of photonic diatomic molecules in line...

In this work, unidirectional pulse propagation equation (UPPE) modeling is performed to study the nonlinear laser-mater interaction in silicon and Nd:Y3Al5O12 (Nd:YAG) crystals. The simulation results are validated with reported experimental results for silicon and applied to Nd:YAG crystals with experimental validation. Stress-induced waveguides a...

We present a novel long-range surface plasmon polariton (LRSPP) device consisting of a suspended dielectric matrix in which an electrically active, millimeter-long metallic waveguide is embedded. We show that, by opening an air gap under the lower cladding, the influence of the substrate is suppressed and the symmetry of the thermo-optical distribu...

We study numerically the evolution of ultrashort pulses in passive uniform photonic-crystal fibers designed such that their nonlinear Kerr coefficient γ varies considerably with wavelength. Such fibers exhibit a zero-nonlinearity wavelength in addition to the zero-dispersion wavelength. We show that soliton evolution is affected considerably by the...

We propose a novel technique to design light sources producing multiple frequency channels potentially applicable in wavelength-division multiplexing networks. The sources are based on spectral interference of solitons generated in non-uniform fiber amplifiers.

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 dispersive wave. We demonstrate a novel way to alter the strength of SSFS in photonic crystal fibers through a frequency-dependent nonlinear parameter $\gamma(\omega)$. Our num...

A frequency convertor based on the soliton self-frequency shift by the supercontinuum generation is obtained by optimization of only three parameters of a Ti:Sapphire laser pulse, namely, carrier wavelength, peak power and time duration. The frequency conversion is performed and calculated by simulating the propagation of the pulse in a simple piec...

We show that temporal reflections off a moving refractive index barrier play a major role in the spectral broadening of a dual-wavelength input inside a highly nonlinear, dispersion-decreasing fiber. We also find that a recently developed linear theory of temporal reflections works well in predicting the reflected frequencies. Successive temporal r...

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 equal duration. As the pulse is amplified, cascaded fundamental solitons are created at different distances, without soliton fission, as each fundamental soliton moves outsi...

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 equal duration. As the pulse is amplified, cascaded fundamental solitons are created at different distances, without soliton fission, as each fundamental soliton moves outsi...

We demonstrate extension of supercontinuum bandwidth through dual-pumping and longitudinally varying dispersion in photonic crystal fiber and explain the spectral features in terms of accelerated soliton self-frequency shift and temporal reflections.

We study numerically the formation of cascading solitons when a single femtosecond pulse is launched into a fiber amplifier. Because of Raman spectral shifts, the output spectrum is relatively broad and exhibits high coherence.

We present a numerical strategy to design fiber based dual pulse light sources exhibiting two predefined spectral peaks in the anomalous group velocity dispersion regime. The frequency conversion is based on the soliton fission and soliton self-frequency shift occurring during supercontinuum generation. The optimization process is carried out by a...

We propose, by means of numerical simulations, a simple method to design a non-uniform standard single mode fiber to generate spectral broadening in the form of “ad-hoc” chosen peaks from dispersive waves. The controlled multi-peak generation is possible by an on/off switch of Cherenkov radiation, achieved by tailoring the fiber dispersion when dec...

We present the temperature response of a mechanically-induced long-period fiber grating (MLPFG) made in photonic crystal fiber (PCF) with and without the coating polymer. In both cases, we found a wavelength shift to shorter wavelengths and a critical decrease of the attenuation peaks. A maximum wavelength shift of 6 nm at 1060 nm was obtained when...

In recent years, the development of metal material structures has brought a new horizon on the development of Metal Dielectric or Plasmonic Photonic Crystals. They involve the use of metals with very small dimensions, often nanodimensions, where metals exhibit a very distinctive behavior as compared to their bulk counterpart. In this paper we study...

We report results of chemical synthesis for silver particles of 2-10 nm size obtained by reduction of Ag+. The material morphology was examined by electron microscopy (TEM) and physical properties were studied by photoluminescence.