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Coulomb potential determining terahertz polarization in two-color laser field
Yuan Gao, Yizhu Zhang, Kaixuan Zhang +3
The orientation and ellipticity of terahertz (THz) polarization generated by two-color strong field not only cast light on underlying mechanisms of laser-matter interaction, but al…
THz nanofocusing with cantilevered THz-resonant antenna tips
S. Mastel, M. Lundeberg, P. Alonso-Gonzalez +7
We developed THz-resonant scanning probe tips, yielding strongly enhanced and nanoscale confined THz near fields at their tip apex. The tips with length in the order of the THz wav…
High-Responsivity Graphene-Boron Nitride Photodetector and Autocorrelator in a Silicon Photonic Integrated Circuit
Ren-Jye Shiue, Yuanda Gao, Yifei Wang +7
Graphene and other two-dimensional (2D) materials have emerged as promising materials for broadband and ultrafast photodetection and optical modulation. These optoelectronic capabi…
High-Speed Electro-Optic Modulator Integrated with Graphene-Boron Nitride Heterostructure and Photonic Crystal Nanocavity
Yuanda Gao, Ren-Jye Shiue, Xuetao Gan +8
Nanoscale and power-efficient electro-optic (EO) modulators are essential components for optical interconnects that are beginning to replace electrical wiring for intra- and inter-…
Controlling the Spontaneous Emission Rate of Monolayer MoS in a Photonic Crystal Nanocavity
Xuetao Gan, Yuanda Gao, Kin Fai Mak +8
We report on controlling the spontaneous emission (SE) rate of a molybdenum disulfide (MoS) monolayer coupled with a planar photonic crystal (PPC) nanocavity. Spatially resolve…
High-Contrast Electro-Optic Modulation of a Photonic Crystal Nanocavity by Electrical Gating of Graphene
Xuetao Gan, Ren-Jye Shiue, Yuanda Gao +8
We demonstrate a high-contrast electro-optic modulation of a photonic crystal nanocavity integrated with an electrically gated monolayer graphene. A high quality (Q) factor air-slo…