The universe, born in a "big bang" more than 10 billion year ago, continues to expand today. Will expansion go on forever, or will the universe begin eventually to contract?
Four "normal" Virgo cluster spirals, NGC4254, NGC4321, NGC4501, and NGC4654, were mapped at 160microns and 360microns wavelengths with arrays of 45" beams using the NASA Kuiper Airborne Observatory
We have measured and modelled the far-infrared reflectivity of La sub (2-x) Sr sub x CuO sub 4 for x = 0.175 in the normal and superconducting states in the frequency range 20 cm sup (-1) to 350 cm
We have measured the reflectivity of polycrystalline samples of CeCu6 at temperatures between 2 and 40K.
We compare our measurements of structure in the reflectivity near the superconducting energy gap on a series of samples of La-Sr-Cu-O and Y-Ba-Cu-O superconductors with those of four other groups.
Far-infrared absorption is used to probe the optical conductivity of metallic GaAs:Si sheets imbedded in GaAs by molecular beam epitaxy.
Arno Penzias and Robert Wilson, working at AT&T Bell Laboratories, discovered the 3K black-body radiation that is the remnant of the origin of our universe.
We present far-induced reflectivity spectra of seven samples of ceramic superconductors in the Ba-Y-Cu-O system with transition temperatures near 93K.
We present far-induced reflectivity spectra of seven samples of ceramic superconductors in the Ba-Y-Cu-O system with transition temperatures near 93K.
Quantum-cascade lasers operating above 20 mum (at lambda similar to 21.5 mum and lambda similar to 24 mum) wavelength are reported.
