3 research outputs found
High-Resolution Large-Ensemble Nanoparticle Trapping with Multifunctional Thermoplasmonic Nanohole Metasurface
The
intrinsic loss in a plasmonic metasurface is usually considered
to be detrimental for device applications. Using plasmonic loss to
our advantage, we introduce a thermoplasmonic metasurface that enables
high-throughput large-ensemble nanoparticle assembly in a lab-on-a-chip
platform. In our work, an array of subwavelength nanoholes in a metal
film is used as a plasmonic metasurface that supports the excitation
of localized surface plasmon and Bloch surface plasmon polariton waves
upon optical illumination and provides a platform for molding both
optical and thermal landscapes to achieve a tunable many-particle
assembling process. The demonstrated many-particle trapping occurs
against gravity in an inverted configuration where the light beam
first passes through the nanoparticle suspension before illuminating
the thermoplasmonic metasurface, a feat previously thought to be impossible.
We also report an extraordinarily enhanced electrothermoplasmonic
flow in the region of the thermoplasmonic nanohole metasurface, with
comparatively larger transport velocities in comparison to the unpatterned
region. This thermoplasmonic metasurface could enable possibilities
for myriad applications in molecular analysis, quantum photonics,
and self-assembly and creates a versatile platform for exploring nonequilibrium
physics
High-Resolution Large-Ensemble Nanoparticle Trapping with Multifunctional Thermoplasmonic Nanohole Metasurface
The
intrinsic loss in a plasmonic metasurface is usually considered
to be detrimental for device applications. Using plasmonic loss to
our advantage, we introduce a thermoplasmonic metasurface that enables
high-throughput large-ensemble nanoparticle assembly in a lab-on-a-chip
platform. In our work, an array of subwavelength nanoholes in a metal
film is used as a plasmonic metasurface that supports the excitation
of localized surface plasmon and Bloch surface plasmon polariton waves
upon optical illumination and provides a platform for molding both
optical and thermal landscapes to achieve a tunable many-particle
assembling process. The demonstrated many-particle trapping occurs
against gravity in an inverted configuration where the light beam
first passes through the nanoparticle suspension before illuminating
the thermoplasmonic metasurface, a feat previously thought to be impossible.
We also report an extraordinarily enhanced electrothermoplasmonic
flow in the region of the thermoplasmonic nanohole metasurface, with
comparatively larger transport velocities in comparison to the unpatterned
region. This thermoplasmonic metasurface could enable possibilities
for myriad applications in molecular analysis, quantum photonics,
and self-assembly and creates a versatile platform for exploring nonequilibrium
physics
High-Resolution Large-Ensemble Nanoparticle Trapping with Multifunctional Thermoplasmonic Nanohole Metasurface
The
intrinsic loss in a plasmonic metasurface is usually considered
to be detrimental for device applications. Using plasmonic loss to
our advantage, we introduce a thermoplasmonic metasurface that enables
high-throughput large-ensemble nanoparticle assembly in a lab-on-a-chip
platform. In our work, an array of subwavelength nanoholes in a metal
film is used as a plasmonic metasurface that supports the excitation
of localized surface plasmon and Bloch surface plasmon polariton waves
upon optical illumination and provides a platform for molding both
optical and thermal landscapes to achieve a tunable many-particle
assembling process. The demonstrated many-particle trapping occurs
against gravity in an inverted configuration where the light beam
first passes through the nanoparticle suspension before illuminating
the thermoplasmonic metasurface, a feat previously thought to be impossible.
We also report an extraordinarily enhanced electrothermoplasmonic
flow in the region of the thermoplasmonic nanohole metasurface, with
comparatively larger transport velocities in comparison to the unpatterned
region. This thermoplasmonic metasurface could enable possibilities
for myriad applications in molecular analysis, quantum photonics,
and self-assembly and creates a versatile platform for exploring nonequilibrium
physics