We report the observation of an analog of double electromagnetically induced absorption (EIA) in a plasmonic system consisting of two disk resonators side-coupled to a discrete metal-insulator-metal (MIM) waveguide. The finite-difference time-domain (FDTD) simulation calculations show that two absorption windows are obtained and can be easily tuned by adjusting the parameters of the two resonan...

Renal damage due to an accumulation of the metal is an important factor in chronic cadmium poisoning. Absorbed cadmium from the intestine contributes to the accumulation of cadmium in the kidney of normal individuals who are free from other occupational exposures to the metal. Thus, information about intestinal cadmium absorption is important for our understanding of chronic cadmium poisoning. ...

We experimentally demonstrate a general optical pump-probe technique to observe the spin Hall effect of light SHEL in an absorbing medium. In essence, a locally confined pump-induced modification of a material’s absorptivity can effectively be used as an induced aperture allowing one to detect the transversely displaced circular polarization components of an incident beam through differential t...

BACKGROUND We tested the hypothesis that maternal interleukin-1beta (IL-1beta) pretreatment and induction of fetal cortisol synthesis activates MAP kinases and thereby affects lung fluid absorption in preterm guinea pigs. METHODS IL-1beta was administered subcutaneously daily to timed-pregnant guinea pigs for three days. Fetuses were obtained by abdominal hysterotomy and instilled with isosmo...

Two-photon absorption and blue-light-induced red absorption (BLIRA) is demonstrated in lithium tantalate LiTaO3 waveguides with ultrashort laser pulses. The blue transmission is modeled for hyperbolic-secantsquared pulses of blue light and is shown to be heavily attenuated by two-photon absorption. The blue light also generates traps for red light, which are absorbed through single-photon inter...

A theoretical and experimental investigation of the intensity noise reduction induced by two-photon absorption in a Er,Yb:Glass laser is reported. The time response of the two-photon absorption mechanism is shown to play an important role on the behavior of the intensity noise spectrum of the laser. A model including an additional rate equation for the two-photon-absorption losses is developed ...

By monitoring the nonlinear absorption of picosecond laser pulses as a function of lattice temperature, we identify four-photon absorption in bulk InAs. Optical bandgap scaling of this process is consistent with a calculation obtained from fourth-order perturbation theory for allowed–allowed–allowed–forbidden transitions. A model of nonlinear absorption based on laser-induced impact ionization ...

We have examined the effects of electron-hole plasma generation on excitonic absorption phenomena in nipi-doped In&&,sAs/GaAs multiple quantum wells (MQWs) using a novel technique called electron beam-induced absorption modulation imaging. The electron-hole plasma is generated by a high-energy electron beam in a scanning electron microscope and is used as a probe to study the MQW absorption mod...

The absorption of a resonant coupling laser driving a closed degenerate two-level system in an atomic cesium beam was investigated as a function of the detuning of a second laser probing the same transition. The measurements were performed for four different polarization combinations of the two laser beams. Except for the beams of counterrotating polarizations all coupling-laser absorption prof...