Abstract: A superconducting optically reconfigurable device (SORD) wherein predetermined and optically achieved patterns of superconducting material generate Meissner effect magnetic flux to achieve control of physical characteristics in local areas of an adjacent film of electromagnetic energy controlling material. The superconducting material magnetic flux is remembered by way of a cycle wherein selected portions of the material are elevated from the superconducting temperature range through the critical temperature T.sub.c into the non-superconducting state while in the presence of a writing magnetic field and then cooled through the critical temperature T.sub.c to permanently retain the writing magnetic flux in the area of temporary optical warming. The pattern of magnetic flux thusly achieved is coupled to one of several possible electromagnetic energy influencing or controlling materials which also have magnetic flux susceptibility.

Abstract: A superconducting network which, through the use of optical illumination, can form a selectable array of superconducting microstrip transmission lines or other electrical elements. The invention uses optical illumination to produce quasiparticles which cause selected physical parts of the network to be electrically nonconductive and thereby define the nonilluminated conductor's shape, physical size, and electrical characteristics. Network reconfigurability to produce several different devices and functions from a single high or low temperature superconductive chip is a disclosed utilization of the invention. The employed optical illumination produces phase change within the superconducting material to provide specific chip architectures. Reconfiguring of the device characteristics is achieved by changing the optical input intensity, spatial orientation, wavelength or combinations of these factors. A plurality of delay line configurations are disclosed as examples.

Abstract: A multiple energy level, multiple pulse repetition frequency, common boresight laser energy source apparatus which employs phase conjugate energy reflection, achievable in a high-pressure gas retro-reflecting cell, to compensate for aberrations of the energy beam occurring in other optical elements. Use of the multiple energy level source in military, medical and industrial settings is described with the lowest level output energy being "eye-safe" for use by operators performing preliminary positioning and alignment of the source. The disclosure includes description of embodiment element limitations and identifications of alternate elements usable to overcome these limitations. Parallel and serial dispositions of the optical elements and discussion of advantages and limitations incurred thereby is also included.

Abstract: A far infrared laser having a CO.sub.2 laser gas cell located in the same optical cavity as the far infrared cell. The CO.sub.2 gas is made to flow through the CO.sub.2 cell within the laser cavity and the far infrared gas is made to flow in the far infrared cell within the laser cavity. The current is supplied between a pair of electrodes in the CO.sub.2 cell to excite the CO.sub.2 gas. The far infrared molecules are pumped by optical energy transfer from the CO.sub.2 laser radiation. The infrared radiation is removed by an aperture in one of the mirrors and a far infrared transparent window.