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A 120° optical hybrid based on 3× multimode interference coupler is reported. The device exhibits less than 10° phase deviation over 55 nm in the C- and L-band.
Monolayer transition-metal dichalcogenides (TMDs) have recently emerged as fascinating novel materials. Like graphene, they can easily be exfoliated from bulk crystals. Unlike graphene, they have a large and direct band gap, making them attractive for potential applications in electronics or optoelectronics. They may also allow for novel device functionalities, as the spin and valley pseudospin degrees...
We analyzed and fabricated a novel coupler which possesses wavelength flattened response and splitting ratio tuning capability. The fabricated coupler showed a flattened response to wavelength over 50 nm bandwidth and the coupling power to the cross port can be tuned from 10% to 70%.
In this paper, we computationally evaluate and compare the performance of recently reported In0.25Ga0.75N/GaN disk-in-wire light emitting diodes (LED) grown in the polar (c-plane) and nonpolar (m-plane) crystallographic orientations in terms of built-in fields, electronic bandstructure and interband optical transition rates. The microscopically determined transi-tion parameters were then incorporated...
We developed an adhesive bonding process to integrate silicon nanomembranes onto silicon chips. A grating-coupled 1-to-32 H-tree optical distribution is experimentally demonstrated with an excess loss of 2.2 dB and a uniformity of 0.72 dB.
We demonstrate a new type of electrically tunable strong coupling between a planar metamaterial layer and an ultra-thin epsilon-near-zero layer made of a doped semiconductor. This can find novel applications in chip-scale infrared optoelectronic devices.
We demonstrate a chiral optical response in stacked arrangements of resonantly coupled plasmonic nanostructures possessing the capability to encode their 3D arrangement in unique spectra making then ideal candidates for a 3D chiral plasmonic ruler.
Optical Coherence Tomography (OCT) is a well known technique for creating non-invasive, high resolution images of biological microstructure. OCT has matured into animportant imaging modality since its invention in 1991. The popularity of the method lies in the numerous advantages that it offers high detection sensitivity allowing fast imaging speed, andhigh spatial resolution. In this paper we propose...
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