Masahiro Tsuchiya

TL;DR: In this paper, a resonant tunneling diode having AlAs/GaAs/AlAs double barrier structure is designed to enhance the tunneling current component and suppress the excess current component.

TL;DR: The use of two-photon absorption in submicron silicon wire waveguides for all-optical switching by cross-absorption modulation is described and successfully converted from high power pump to low power continuous-wave signal with a fast recovery time.

TL;DR: In this paper, the dependence of current components on GaAs well widths is studied in AlAs/GaAs/AlAs double barrier diode structures having AlAs barriers of 8 atomic layers and it is shown for the first time that the density JRT of resonant current varies from 8×102 to 1.6×104 A cm−2 by the choice of the well width from 9 to 5 nm in accordance with theoretical calculations.

TL;DR: In this article, the authors applied the high extinction ratio optical modulator to a high-stability and high-frequency (over 100 GHz) optical reference signal generator, which is used for high-rate communication and astronomical application.

TL;DR: In this paper, an all-optical logic NOR gate which does not rely on free carriers but instead uses two-photon absorption was reported, which required low pulse energy (few pJ) for logic gate operation.