Low-Power consumption Franz-Keldysh effect plasmonic modulator

A CMOS-Compatible, low-energy consumption Franz-Keldysh effect Plasmonic Modulator Active Region

In this abstract we report on the design of a low energy consumption CMOS-compatible FranzKeldysh effect plasmonic modulator. The main characteristics of the modulator were determined using integrated electro-optical simulations. A 3.3 dB extinction ratio for a 30 μm long modulator was demonstrated under 3 V bias voltage at an operation wavelength of 1647 nm. The estimated energy consumption wa...

Dynamical Franz-Keldysh effect.

Excitonic Dynamical Franz-Keldysh Effect

Attosecond dynamical Franz-Keldysh effect in polycrystalline diamond.

Short, intense laser pulses can be used to access the transition regime between classical and quantum optical responses in dielectrics. In this regime, the relative roles of inter- and intraband light-driven electronic transitions remain uncertain. We applied attosecond transient absorption spectroscopy to investigate the interaction between polycrystalline diamond and a few-femtosecond infrare...

Piezoelectric Franz–Keldysh effect in strained GaInN/GaN heterostructures

Pseudomorphic Ga12xInxN/GaN single heterostructures in the composition range 0,x,0.2 have been investigated by photoreflectance and photoluminescence spectroscopy. Strong Franz–Keldysh oscillations near the band gap of the ternary film are observed and attributed to a large constant piezoelectric field of up to 0.63 MV/cm. This allows an accurate determination of the electric field. A significa...