In this letter, we propose to realize optical discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) on one single multimode interference (MMI) coupler. In comparison to the ...

Explore how forensic material testing is used to identify construction failures, prevent risk, and improve long-term ...

Abstract: We investigated the correlation between the temperature coefficient of elasticity (TCE) and Fourier transform infrared (FT-IR) absorption spectra of SiO 2 for SAW devices. The measurement ...

A Fourier transform of the recorded voltage and current data thus yields an impedance spectrum. (33,35) Using this approach, we can collect a complete impedance spectrum on the time scale defined by ...