The advent of optical waveguides with a unique geometry, where the central part is of low refractive index as compared to the material on the sides, here-after named as a slot(s) guarded by slabs with unique properties of light confinement opened new opportunities for lab-on-chip circuits. Apart from passive dispersion compensator circuits (proposed by us for the first time), active optical circuits have also been designed (by other researchers). In this research we are in a quest to harvest the benefits of Silicon-on-Insulator (SOI) slot optical waveguides in the area of photo-voltaic solar power generation; earlier we have proposed simple and easy to implement periodic/ basic multiple air cladded slot structures. In this research work, we have implemented buried SOI slot optical waveguides; the solar spectrum incarceration with our earlier research work is also being compared. With the advancement in nano-technologies, it is never a problem to implement nanometers wide optical waveguides on the window glass. Where conventional photovoltaic solar cells will be embedded either on all corners of a micro-meter wide region or maybe only on one side. The research will open new avenues for researchers in the field of photovoltaic power generation.
Slot waveguide structure gained attention due to high confinement of power inside low index slot region. The high efield
confinement is dependent upon various geometrical parameters. A double slot structure where two low index slots
of hard material in high index cladding of compressible material is proposed. Power confinement factor dependency
upon distance between low index slots has been numerically computed. Sufficient numerical results obtained lead to the
proposal of opto-mechanical sensor based upon proposed double slot structure.
Since the advent of slot optical waveguides by Lipson, normally SOI based slot optical waveguides have been under consideration. It
has been found that glass based slot optical waveguide structures, where refractive index contrast ratio is comparatively less can also
play important role in forming complex nano size optical devices. We have made use of power confined inside low index slot region
for a double slot structure, where central high index slab is acting as a cantilever. Novel optomechanical sensor has been proposed
based on variation in power confined inside low index slot region due to the movement of central high index slab under the action of
external force (temperature, pressure, humidity, etc.)
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