Title:
Novel Applications of Hyperbolic Metamaterials
Novel Applications of Hyperbolic Metamaterials
Speaker:
林宏易 (Hung-I Lin)
林宏易 (Hung-I Lin)
Time:
09/08 (Sat.) 6:30 pm PDT, 7:30 pm MDT, 8:30 pm CDT, 9:30 pm EDT
09/09 (Sun.) 9:30 am Taiwan
09/08 (Sat.) 6:30 pm PDT, 7:30 pm MDT, 8:30 pm CDT, 9:30 pm EDT
09/09 (Sun.) 9:30 am Taiwan
Keywords:
metamaterials, laser science, 2D material, hyperbolic metamaterials, random laser, graphene, transition metal dichalcogenides, upconversion nanoparticle, metal–organic framework nanoparticle, piezo-phototronic effect
metamaterials, laser science, 2D material, hyperbolic metamaterials, random laser, graphene, transition metal dichalcogenides, upconversion nanoparticle, metal–organic framework nanoparticle, piezo-phototronic effect
Abstract:
Recently, a research highlight is hyperbolic metamaterials (HMMs), defined by the iso-frequency curve in momentum-space owing to its unique hyperbolic shape. To achieve this artificial structure with promising functionality that provides the increased photonic density of states (PDOS) from the unbounded wave-vector. HMMs can enhance the transition rate of the optical gain media to achieve the lasing action and reduce the threshold, which is very useful to be a suitable candidate for all-optical communication. Furthermore, we also report the demonstration of white random laser action using upconversion nanoparticles (UCNP) deposited on top of HMMs. These combination is capable of producing white random laser from a single segment. The porous structure of the UCNP clusters functions as the microcavity for photon scattering that provides the optical feedback gain for the emitted light. With a suitable design of HMMs superlattice, it is possible to tune the high PDOS that enables to induce emission enhancement at the region of interest to produce a broadband lasing action device that covers the red, green, and blue.
Recently, a research highlight is hyperbolic metamaterials (HMMs), defined by the iso-frequency curve in momentum-space owing to its unique hyperbolic shape. To achieve this artificial structure with promising functionality that provides the increased photonic density of states (PDOS) from the unbounded wave-vector. HMMs can enhance the transition rate of the optical gain media to achieve the lasing action and reduce the threshold, which is very useful to be a suitable candidate for all-optical communication. Furthermore, we also report the demonstration of white random laser action using upconversion nanoparticles (UCNP) deposited on top of HMMs. These combination is capable of producing white random laser from a single segment. The porous structure of the UCNP clusters functions as the microcavity for photon scattering that provides the optical feedback gain for the emitted light. With a suitable design of HMMs superlattice, it is possible to tune the high PDOS that enables to induce emission enhancement at the region of interest to produce a broadband lasing action device that covers the red, green, and blue.
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