نتایج جستجو برای: integrated optics

تعداد نتایج: 304388  

2012
N. Ismail

We propose a novel technique for microlens fabrication which is compatible with silicon oxynitride technology, and enables the collimation of light exiting the waveguides into beams with divergence angles of 0.52°. Keywords-arrayed microlenses; integrated optics; waveguides

2012
N. Ismail L.-P. Choo-Smith A. C. Baclig P. J. Caspers G. J. Puppels

We designed an arrayed-waveguide grating spectrometer for the detection of early dental caries in teeth through polarized Raman spectroscopy. Measurement results on extracted human teeth demonstrate the feasibility of the approach. (Abstract) Keywords-component; Raman spectroscopy; integrated optics;

Journal: :Journal of The Optical Society of America B-optical Physics 2021

Solar photons possessing energy less than the bandgap of a single-junction solar cell can be utilized via upconversion (UC) two or more photons, resulting in emission single above-bandgap photon. Due to non-linear nature UC, highly concentrated light is required, which typically much greater practical concentration limits cell. It has been proposed that concentrating cells (UC-SC) with optical ...

Journal: :Science 2008
Alberto Politi Martin J Cryan John G Rarity Siyuan Yu Jeremy L O'Brien

Quantum technologies based on photons will likely require an integrated optics architecture for improved performance, miniaturization, and scalability. We demonstrate high-fidelity silica-on-silicon integrated optical realizations of key quantum photonic circuits, including two-photon quantum interference with a visibility of 94.8 +/- 0.5%; a controlled-NOT gate with an average logical basis fi...

Journal: :Optics letters 2017
Ze Cai Ya Liu Chenchu Zhang Jiangchuan Xu Shengyun Ji Jincheng Ni Jiawen Li Yanlei Hu Dong Wu Jiaru Chu

Owing to the distinguishing properties of nondiffraction, self-healing, and transverse acceleration, Airy beams have attracted much attention in the past decade. To date, a simple approach for exquisitely fabricating cubic phase plates with both continuous variation of phase and micro size still remains challenging, which limits the generation of high-quality Airy beams for integrated micro-opt...

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