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Vertical Injection and Wideband Grating Coupler Based on Asymmetric Grating Trenches
Md Asaduzzaman, Robert J. Chapman, Brett C. Johnson +1
A Silicon-on-insulator (SOI) perfectly vertical fibre-to-chip grating coupler is proposed and designed based on engineered subwavelength structures. The high directionality of the…
Submicron domain engineering in periodically poled lithium niobate on insulator
Inna Krasnokutska, Jean-Luc J. Tambasco, Alberto Peruzzo
Lithium niobate on insulator (LNOI) is extensively researched for potential applications in telecommunication, sensing and quantum technology. Low-loss waveguides in LNOI have been…
Bright photoluminescence of NV+ in diamond
Akib Karim, Igor Lyskov, Salvy P. Russo +1
The positively charged nitrogen vacancy (NV+) centre in diamond has been traditionally treated as a dark state due to the experimental lack of an optical signature. Recent computat…