4 papers
Plasmonic Heterodyne Spectrometry for Resolving the Spectral Signatures of Ammonia over a 1-5 THz Frequency Range
Yen-Ju Lin, Semih Cakmakyapan, Ning Wang +3
We present a heterodyne terahertz spectrometry platform based on plasmonic photomixing, which enables the resolution of narrow spectral signatures of gases over a broad terahertz f…
Room Temperature Terahertz Spectrometer with Quantum-Level Sensitivity
Ning Wang, Semih Cakmakyapan, Yen-Ju Lin +2
Photon detection with quantum-level sensitivity is particularly challenging in the terahertz regime (0.1-10 THz), which contains ~98% of all the photons existing in the universe. N…
Gold-Patched Graphene Nanoribbons for High-Responsivity and Ultrafast Photodetection from Visible to Infrared Regimes
Semih Cakmakyapan, Ping Keng Lu, Aryan Navabi +1
Graphene is a very attractive material for broadband photodetection in hyperspectral imaging and sensing systems. However, its potential use has been hindered by tradeoffs between…
Electrically Switchable Metadevices via Graphene
Osman Balci, Nurbek Kakenov, Ertugrul Karademir +6
Metamaterials bring sub-wavelength resonating structures together to overcome the limitations of conventional materials. The realization of active metadevices has been an outstandi…