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A novel Mach-Zehnder type interferometer coupled with the double optical gating technique provides tunable XUV or VUV isolated attosecond pulses and streak field detection with fields centered at both 750 nm and 400 nm wavelength.
We present a novel approach for efficient terahertz signal generation at silicon nanophotonic waveguides via electro-optic difference frequency generation using telecom wavelengths excitation pulses. Second-order nonlinearity of silicon is achieved by plasma-activated surface modification.
Recent developments for the label-free analysis of genetic material using THz systems are presented. Following a proof-of-principle initial approach, high-sensitivity integrated THz sensing systems reaching femtomol detection sensitivity and single base mutation capabilities are reviewed.
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