Integrated optical modules for miniature Raman spectroscopy devices

Çivitçi, Fehmi

doi:10.3990/1.9789036537674

Cited by 1 publication

(1 citation statement)

References 115 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Refs. [6,7,8,9,10]), but, to the best of our knowledge, has never been applied to configurations other than simple waveguide facets or transitions between co-aligned slabs with different cross sections, in particular not to configurations with orthogonal access slabs, such as for the present corners or steps.…”

Section: Introductionmentioning

confidence: 99%

Full Resonant Transmission of Semiguided Planar Waves Through Slab Waveguide Steps at Oblique Incidence

Hammer

Hildebrandt

Förstner

2016

J. Lightwave Technol.

View full text Add to dashboard Cite

Sheets of slab waveguides with sharp corners are investigated. By means of rigorous numerical experiments, we look at oblique incidence of semi-guided plane waves. Radiation losses vanish beyond a certain critical angle of incidence. One can thus realize lossless propagation through 90-degree corner configurations, where the remaining guided waves are still subject to pronounced reflection and polarization conversion. A system of two corners can be viewed as a structure akin to a Fabry-Perot-interferometer. By adjusting the distance between the two partial reflectors, here the 90-degree corners, one identifies step-like configurations that transmit the semi-guided plane waves without radiation losses, and virtually without reflections. Simulations of semi-guided beams with in-plane wide Gaussian profiles show that the effect survives in a true 3-D framework.

show abstract