Conical reflection of light during free-space coupling into a symmetrical metal-cladding waveguide.
نویسندگان
چکیده
Novel conical reflection of light by a thick three-layered metal-clad optical waveguide is observed. A symmetrical metal-cladding optical waveguide is used, which exhibits extraordinary conical reflection during free-space coupling of light to the waveguide. The phenomenon is attributed to the leakage of excited ultrahigh-order guided modes and their inter- and intramode coupling interaction.
منابع مشابه
Second-harmonic generation in a metal-clad nonlinear optical waveguide.
Efficient optical nonlinear effects in waveguides play an important role in integrated photonic functionalities. The dispersion characteristics need to be well designed to satisfy the phase-matching condition of the interacting waves in waveguides. Here we demonstrate a novel phase-matching process of second-harmonic generation (SHG) in a symmetrical metal-cladding optical waveguide (SMCOW) wit...
متن کاملEngineering of metal-clad optical nanocavity to optimize coupling with integrated waveguides.
We propose a cladding engineering method that flexibly modifies the radiation patterns and rates of metal-clad nanoscale optical cavity. Optimally adjusting the cladding symmetry of the metal-clad nanoscale optical cavity modifies the modal symmetry and produces highly directional radiation that leads to 90% coupling efficiency into an integrated waveguide. In addition, the radiation rate of th...
متن کاملOn-chip Si-based Bragg cladding waveguide with high index contrast bilayers.
A new silicon based waveguide with full CMOS compatibility is developed to fabricate an on-chip Bragg cladding waveguide that has an oxide core surrounded by a high index contrast cladding layers. The cladding consists of several dielectric bilayers, where each bilayer consists of a high index-contrast pair of layers of Si and Si3N4. This new waveguide guides light based on omnidirectional refl...
متن کاملCompact slit-based couplers for metal-dielectric-metal plasmonic waveguides.
We introduce compact wavelength-scale slit-based structures for coupling free space light into metal-dielectric-metal (MDM) subwave-length plasmonic waveguides. We first show that for a single slit structure the coupling efficiency is limited by a trade-off between the light power coupled into the slit, and the transmission of the slit-MDM waveguide junction. We next consider a two-section slit...
متن کاملExperimental observation of coupling between physically separated planar waveguides utilising tilted Bragg grating structures
We demonstrate a novel optical device used to couple light from one channel waveguide to another 100 μm away. An investigation into the blaze angle of the tilted gratings used to couple light into the cladding modes is presented. Keywordstilted Bragg gratings; direct UV writing.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of the Optical Society of America. A, Optics, image science, and vision
دوره 30 9 شماره
صفحات -
تاریخ انتشار 2013