We have measured the energy dependence of the elastic specular reflection of positrons from the (111) surfaces of solid rare gas crystals.
We report on direct measurements of the electronic shot noise of a quantum point contact (QPC) at frequencies v in the range 4-8 GHz.
We have measured changes in small-signal gain spectra of an optical amplifier caused by the presence of a second signal at a different wavelength.
The bond-orientational ordering in free-standing liquid-crystal thin films of various thicknesses in the hexatic-B phase has been studied quantitatively using electron diffraction.
We have observed a two-step melting transition in a two dimensional system with classical screened Coulomb interactions.
We have observed a two-step melting transition in a two dimensional system with classical screened Coulomb interactions.
We have observed a two-step melting transition in a two dimensional system with classical screened Coulomb interactions.
Optical spectroscopy of crystals of Ba sub 2 YCu sub 3 O sub (6+x) and La sub (2-X) Sr sub x CuO sub 4 reveal a substantial absorption band in addition to what is expected from the dc transport.
We show that passive InP-InGaAsP waveguides exhibit high non- linear loss due to the highly energetic carriers generated by two-photon absorption.
We show that passive InP-InGaAsP waveguides exhibit high non-linear loss due to the highly energetic carriers generated by two-photon absorption.
