Daniel Pimbi
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View article: Full spectral response of grating-induced loss in photonic crystal microrings
Full spectral response of grating-induced loss in photonic crystal microrings Open
Photonic crystal microrings (PhCRs) have emerged as powerful and versatile platforms for integrated nonlinear photonics, offering precise control over frequency and phase matching while maintaining high optical quality factors. Through gra…
View article: Parasitic loss in microring-waveguide coupling and its impact on wideband nonlinear photonics
Parasitic loss in microring-waveguide coupling and its impact on wideband nonlinear photonics Open
Microring resonators enable the enhancement of nonlinear frequency mixing processes, generating output fields at frequencies that widely differ from the inputs, in some cases by more than an octave. The efficiency of such devices depends o…
View article: In-plane beam focusing via integrated photonic gradient-index subwavelength grating metalens
In-plane beam focusing via integrated photonic gradient-index subwavelength grating metalens Open
We present an in-plane beam converter scheme that can focus a large Gaussian slab mode into a tightly focused spot approximately hundreds of micrometers away from the chip facet. Our approach involves designing the modal expander that conv…
View article: Integrated polarization-free Bragg filters with subwavelength gratings for photonic sensing
Integrated polarization-free Bragg filters with subwavelength gratings for photonic sensing Open
We present polarization-free Bragg filters having subwavelength gratings (SWGs) in the lateral cladding region. This Bragg design expands modal fields toward upper cladding, resulting in enhanced light interaction with sensing analytes. Tw…
View article: Polarization-independent photonic Bragg grating filter with cladding asymmetry
Polarization-independent photonic Bragg grating filter with cladding asymmetry Open
A photonic Bragg grating is a fundamental building block that reflects the direction of wave propagation through spatial phase modulation and can be implemented using sidewall corrugation. However, due to the asymmetric aspect ratio of a w…
View article: Electron nuclear dynamics of time-dependent symmetry breaking in H<sup>+</sup> + H<sub>2</sub>O at <i>E</i><sub>Lab</sub> = 28.5–200.0 eV: a prototype for ion cancer therapy reactions
Electron nuclear dynamics of time-dependent symmetry breaking in H<sup>+</sup> + H<sub>2</sub>O at <i>E</i><sub>Lab</sub> = 28.5–200.0 eV: a prototype for ion cancer therapy reactions Open
Low degrees of symmetry breaking in initial states lead to full-blown symmetry breaking during evolution and improve predictions in time-dependent direct dynamics.