Sylvain Guerber

TL;DR: This Letter demonstrates for the first time, the realization of an ultra-directional L-shaped grating coupler, seamlessly fabricated by using 193 nm deep-ultraviolet (deep-UV) lithography, and includes a subwavelength index engineered waveguide-to-grating transition that provides an eight-fold reduction of the grating reflectivity.

TL;DR: This work proposes a rather simpler in design of efficient off-chip fiber couplers that provide a simulated efficiency up to 95% (-0.25 dB) at a wavelength of 1.55 µm, and contains device dimensions compatible with standard lithographic technologies presently available in silicon nanophotonic foundries.

TL;DR: In this paper, supercontinuum generation in nitrogen-rich (N-rich) silicon nitride waveguides fabricated through back-end complementary-metal-oxide-semiconductor (CMOS)-compatible processes on a 300mm platform was reported.

TL;DR: In this article, a broadband polarization beam splitters (PBS) on a 300mm silicon nitride (SiN) photonic platform is reported based on phase-controlled directional coupler (DC) for wavelength division multiplexing applications.

TL;DR: The performance of a custom atomic force microscope for grazing-incidence X-ray experiments on hydrated soft and biological samples is presented.