35 citations · 45 across the 7 of their papers we have counts for
7 papers
Room-temperature THz photon detection via nonlinear upconversion with 2% full-system efficiency
Aswin Vishnuradhan, Wei Cui, Hesam Heydarian +5
Sensitive detection of terahertz (THz) radiation is fundamental to progress in spectroscopy, advanced wireless communication, and the realization of emerging quantum technologies.…
Broadband THz spectroscopy system beyond 25 THz using BNA crystals and a tunable single-ring-fiber compressor
Wei Cui, Aswin Vishnuradhan, Markus Lippl +4
We present a terahertz (THz) time-domain spectroscopy (THz-TDS) system which accesses a broadband spectrum, efficiently covering the so-called "new THz gap" between 5 and 15 THz an…
Characterization of Terahertz Spectral Bands for Next Generation of Wireless Communications
Eeswar Kumar Yalavarthi, Wei Cui, Aswin Vishnuradhan +4
The ever-increasing demand for high-speed data transmission continues to motivate research and development efforts towards the sixth generation (6G) of wireless communication techn…
High detectivity terahertz radiation sensing using frequency-noise-optimized nanomechanical resonators
Chang Zhang, Eeswar K. Yalavarthi, Mathieu Giroux +6
We achieve high detectivity terahertz sensing using a silicon nitride nanomechanical resonator functionalized with a metasurface absorber. High performances are achieved by strikin…
Sub-zeptojoule detection of terahertz pulses by parametric frequency upconversion
Défi Junior Jubgang Fandio, Aswin Vishnuradhan, Eeswar Kumar Yalavarthi +4
We combine parametric frequency upconversion with single-photon counting technology to achieve detection sensitivity down to the terahertz (THz) single-photon level. Our relatively…
High-field THz source centered at 2.6 THz
Wei Cui, Eeswar Kumar Yalavarthi, Aswin Vishnu Radhan +3
We demonstrate a table-top high-field terahertz (THz) source based on optical rectification of a collimated near-infrared pulse in gallium phosphide (GaP) to produce peak fields ex…
Single-pulse time-resolved terahertz spectroscopy of sub-millisecond time dynamics
Nicolas Couture, Wei Cui, Markus Lippl +7
Slow motion movies are not only fascinating to watch, they also allow us to see intricate details of the mechanical dynamics of complex phenomena. If the images in each frame are r…