Dear Colleague,

The unique structure of the slot waveguide has received an increasing amount of interest since it was first demonstrated. In this structure, the optical field is confined inside the low refractive index material (slot region) which is surrounded by a high refractive index material, usually silicon. In this structure, the electric field of quasi-TM mode goes through a large discontinuity between low refractive index and high refractive index materials. Therefore, light is strongly confined in a nanometer-wide region of the low index slot. Although the light is guided and enhanced in low refractive index material, the guiding mechanism is still based on total internal reflection. Using this unique structure leads to a variety of advantages, such as a small beat length of the guided light and a strong confinement in the slot region that results in extremely low losses. Another benefit is that CMOS-compatible materials and technology can be used in slot-waveguide fabrication.

Thus, slot waveguide technology has become a significant subject of research and growth in the understanding of nanometer-scale photonic devices. It allows low-cost optical devices by using common semiconductor fabrication techniques and their relatively simple integration with microelectronic chips.

We invite investigators to submit papers which discuss the development of optical devices based on slot-waveguide technology.

Potential topics include but are not limited to:

• Semiconductor-materials-based slot waveguide technology;
• Tapers and couplers for coupling light to nano-silicon chip;
• Multiplexer/Demultiplexer for o/c-band range;
• Power combiner/splitter;
• Polarization;
• Multislot waveguide structurer;
• Sensing;
• Modulators;
• Filters;
• Amplifiers and lasers;
• Study new slot waveguide structure;
• Study modes field inside slot waveguide structure;
• VLC devices based on slot waveguide structure;
• Fabrication of new slot waveguide structures;
• Numerical methods for solving slot waveguide structure.

Dr. Dror Malka
Guest Editor

Manuscript Submission Information

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• Slot waveguide
• Multi slot waveguide
• FV-BPM
• FDTD
• SOI
• Silicon
• Sensor
• Combiner
• Splitter
• Polarization
• Amplifier
• Laser
• Filter
• Modulator