This paper reports an uncooled microbolometer infrared detector with polycrystalline silicon–germanium thermistor as the active element. Polycrystalline silicon–germanium (poly-SiGe) films are deposited by ultrahigh vacuum vapor deposition (UHV/CVD)
A scheme to achieve ultrahigh speed all-optical format conversion from on-off keying (OOK) to phase-shift keying (PSK) by using the linear filtering in the silicon ring resonators is proposed. It is shown that the OOK-to-PSK conversion can be achieve
Searching for an ultrahigh-repetition-rate pulse on the order of hundreds of gigahertz (GHz) is still a challenging task in the ultrafast laser community. Recently, high-quality silicon/silica-based resonators were exploited to generate a high-repeti
High-performance asymmetric supercapacitor with ultrahigh energy density based on hierarchical graphene sheetsNiO core-shell nanosheets and 3D drilled graphene sheets hydrogel
The ability to sense dynamic biochemical reactions and material processes is particularly crucial for a wide range of applications, such as early-stage disease diagnosis and biomedicine development. Optical microcavities-based label-free biosensors a
The Co3O4 nanosheets electrode have been fabricated on Ni foam by a facile synthesis process including the electrodeposition of Co(OH)2 precursor followed by subsequent thermal transformation of precursor to Co3O4. The resulting Co3O4 nanosheets elec
The stability of negative electron affinity Ga0.37Al0.63As photocathodes in an ultrahigh vacuum system has been investigated. The degraded photocurrents of the Cs/O activated Ga0.37Al0.63As photocathodes under illumination with different intensity ar
