Jens H. Schmid

TL;DR: A subwavelength refractive index engineered nanostructure is demonstrated to mitigate loss and wavelength resonances by suppressing diffraction effects, enabling a coupling efficiency over 92% (0.32 dB) and polarization independent operation for a broad spectral range exceeding 100 nm.

TL;DR: A new silicon photonic wire waveguide evanescent field (PWEF) sensor that exploits the strong evanescence field of the transverse magnetic mode of this high-index-contrast, submicrometer-dimension waveguide is demonstrated with near temperature-independent response.

TL;DR: In this article, the role of silicon device layer thickness in design optimization of various components that need to be integrated in a typical optical transceiver, including both passive ones for routing, wavelength selection, and light coupling as well as active ones such as monolithic modulators and on-chip lasers produced by hybrid integration.

TL;DR: A fully etched, continuously apodized fiber-to-chip surface grating coupler for the first time (to the authors' knowledge), fabricated in a single-etch step and operates with TM-polarized light.

TL;DR: It is shown that by subwavelength patterning of silicon-wire waveguides the field delocalization can be engineered to increase the sensitivity, achieving sensitivities of 0.83 RIU/RIU and 1.5·10(-3)‬ RIU/nm for bulk and surface sensing.