Surface plasmon polaritons(SPPs)are crucial for the development of next generation information and communication technologies.However,the ohmic losses inherent to all plasmonic devices seriously limit their practical ...Surface plasmon polaritons(SPPs)are crucial for the development of next generation information and communication technologies.However,the ohmic losses inherent to all plasmonic devices seriously limit their practical application in on-chip photonic communications.Here,loss compensation of SPPs and their application in photonic logic processing was demonstrated in rationally designed organic/silver nanowire heterostructures.The heterostructures were synthesized by inserting silver nanowires(AgNWs)into crystalline organic microwires,which served as a microscale optical gain medium.These heterostructures with large organic/metal interfacial areas ensured the efficient energy transfer from excitons to SPPs.Gain for subwavelength SPPs in the heterostructure was achieved through stimulated emission of strongly confined SPPs.Furthermore,cascade gain was performed to realize basic nanoscale photonic devices,such as Boolean logic units.The results would pave an alternative avenue to incorporating SPP-enhanced devices into hybrid photonic circuitry.展开更多
Laser displays,benefiting from the characteristic merits of lasers,have led to the revolution of next-generation display technologies owing to their superior color expression.However,the acquisition of pixelated laser...Laser displays,benefiting from the characteristic merits of lasers,have led to the revolution of next-generation display technologies owing to their superior color expression.However,the acquisition of pixelated laser arrays as self-emissive panels for flat-panel laser displays remains challenging.Liquid crystal(LC)materials with excellent processability and optoelectronic properties offer considerable potential for the construction of highly ordered multicolor laser arrays.Here,we demonstrate flat-panel laser displays on LC microlaser pixel arrays through a microtemplate-assisted inkjet printing method.Individual organic red-green-blue(RGB)microlaser pixel arrays were obtained by doping dyes into LCs with photonic band edges to obtain single-mode RGB lasing,leading to a much broader color gamut,compared with the standard RGB color space.Then we acquired periodically patterned RGB pixel matrices by positioning LC microlasers precisely into highly ordered arrays,according to the well-organized geometry of the microtemplates.Subsequently,we demonstrated full-color flat-panel laser displays using the LC microlaser pixel matrices as self-emissive panels.These results provide valuable enlightenment for the construction of next-generation flat-panel laser display devices.展开更多
基金supported by the Ministry of Science and Technology of China(2017YFA0204502)the National Natural Science Foundation of China(21533013 and 21790364)。
文摘Surface plasmon polaritons(SPPs)are crucial for the development of next generation information and communication technologies.However,the ohmic losses inherent to all plasmonic devices seriously limit their practical application in on-chip photonic communications.Here,loss compensation of SPPs and their application in photonic logic processing was demonstrated in rationally designed organic/silver nanowire heterostructures.The heterostructures were synthesized by inserting silver nanowires(AgNWs)into crystalline organic microwires,which served as a microscale optical gain medium.These heterostructures with large organic/metal interfacial areas ensured the efficient energy transfer from excitons to SPPs.Gain for subwavelength SPPs in the heterostructure was achieved through stimulated emission of strongly confined SPPs.Furthermore,cascade gain was performed to realize basic nanoscale photonic devices,such as Boolean logic units.The results would pave an alternative avenue to incorporating SPP-enhanced devices into hybrid photonic circuitry.
基金supported financially by the Ministry of Science and Technology of China(no.2017YFA0204502)the National Natural Science Foundation of China(grant nos.21533013 and 21790364).
文摘Laser displays,benefiting from the characteristic merits of lasers,have led to the revolution of next-generation display technologies owing to their superior color expression.However,the acquisition of pixelated laser arrays as self-emissive panels for flat-panel laser displays remains challenging.Liquid crystal(LC)materials with excellent processability and optoelectronic properties offer considerable potential for the construction of highly ordered multicolor laser arrays.Here,we demonstrate flat-panel laser displays on LC microlaser pixel arrays through a microtemplate-assisted inkjet printing method.Individual organic red-green-blue(RGB)microlaser pixel arrays were obtained by doping dyes into LCs with photonic band edges to obtain single-mode RGB lasing,leading to a much broader color gamut,compared with the standard RGB color space.Then we acquired periodically patterned RGB pixel matrices by positioning LC microlasers precisely into highly ordered arrays,according to the well-organized geometry of the microtemplates.Subsequently,we demonstrated full-color flat-panel laser displays using the LC microlaser pixel matrices as self-emissive panels.These results provide valuable enlightenment for the construction of next-generation flat-panel laser display devices.
