Nanophotonic architectures sustain exciting optical phenomena that can improve the performance of modern optoelectronic devices. However, in order to integrate nanophotonics into actual devices, we need manufacturing methods that are affordable and can be scaled up without driving up costs. To fully leverage the benefits of photonic structures, their fabrication should integrate seamlessly with the established processing methods used for the devices they are meant to enhance.

In our research group, we employ soft nanoimprinting lithography, a versatile, rapid, and cost-efficient method for crafting nanostructures from a diverse variety of materials. In soft nanoimprinting lithography, we make use of pre-patterned soft elastomeric stamps to fabricate photonic structures out of materials such as resists, biopolymers, colloids and nanomaterials in general. In all cases, the resulting photonic architectures can exhibit a resolution below 50 nm while covering large areas.

During this presentation, I will demonstrate our utilization of pre-patterned stamps to induce the long-range alignment of different colloids, including gold colloids and perovskite nanocrystals, to attain distinct optical properties, such as lattice resonances with high Q-factors. Moreover, I will showcase how elastomeric molds pre-patterned with chiral motifs can lead to chiral 2D gratings, exhibiting strong circular dichroism and intense circularly polarized photoluminescence (CPL) combined with a wide range of emitters, making them seamlessly applicable in various practical applications.^1,2

Nanophotonic architectures sustain exciting optical phenomena that can improve the performance of modern optoelectronic devices. However, in order to integrate nanophotonics into actual devices, we need manufacturing methods that are affordable and can be scaled up without driving up costs. To fully leverage the benefits of photonic structures, their fabrication should integrate seamlessly with the established processing methods used for the devices they are meant to enhance.
In our research group, we employ soft nanoimprinting lithography, a versatile, rapid, and cost-efficient method for crafting nanostructures from a diverse variety of materials. In soft nanoimprinting lithography, we make use of pre-patterned soft elastomeric stamps to fabricate photonic structures out of materials such as resists, biopolymers, colloids and nanomaterials in general. In all cases, the resulting photonic architectures can exhibit a resolution below 50 nm while covering large areas.
During this presentation, I will demonstrate our utilization of pre-patterned stamps to induce the long-range alignment of different colloids, including gold colloids and perovskite nanocrystals, to attain distinct optical properties, such as lattice resonances with high Q-factors. Moreover, I will showcase how elastomeric molds pre-patterned with chiral motifs can lead to chiral 2D gratings, exhibiting strong circular dichroism and intense circularly polarized photoluminescence (CPL) combined with a wide range of emitters, making them seamlessly applicable in various practical applications.