摘要:
The recording method and apparatus according to this invention is an "optical recording method utilizing a simulated photon echo" in which information is recorded by irradiating data and record excitation lights at the same time or at different times on the same location of a recording medium, and in which the delay time of a record excitation light electric field and a data light electric field is recorded as the information by use of a common incoherent light split into two equal parts: the data light and the record excitation light. In the reproducing method and apparatus according to this invention, reproducing excitation and probe lights are illuminated on the recording medium and the stimulated photon echo light emitted from the medium by illumination of the reproducing excitation light overlaps the probe light. The "stimulated photon echo" reproducing the information is utilized by converting the synthetic light obtained from the overlap into an electrical signal at a photo detector. A common incoherent light is split into two equal parts, the reproducing excitation and the probe lights, whereby the delay time of the reproducing excitation light electric field and the probe light electric field is set to predetermined values, or a first predetermined value is swept to a second predetermined value.
摘要:
A method is disclosed for determining the concentration of chloride ions and bromide ions employing one and the same serum specimen and one measuring electrode assembly consisting of a working electrode, a counter electrode and a reference electrode which is covered with a polymer film having fine porosity being disposed in a serum specimen. The potential level of the working electrode is cyclically changed within the first predetermined range to determine the total amount of coulombs based on the total amount of chloride ions and bromide ions present with specimen. Then the potential level of the working electrode is cyclically changed within the second predetermined range to determine the amount of coulombs attributable to bromide ions and subsequently the amount of coulombs attributed to the chloride ions concentration is calculated by subtracting the latter from the former and finally determining both ion concentrations by referring to a calibration curve.
摘要:
The recording method and apparatus according to this invention is an "optical recording method utilizing a simulated photon echo" in which information is recorded by irradiating data a.d record excitation lights at the same time or at different times on the same location of a recording medium, and in which the delay time of a record excitation light electric field and a data light electric field is recorded as the information by use of a common incoherent light split into two equal parts: the data light and the record excitation light. In the reproducing method and apparatus according to this invention, reproducing excitation and probe lights are illuminated on the recording medium and the stimulated photon echo light emitted from the medium by illumination of the reproducing excitation light overlaps the probe light. The "stimulated photon echo" reproducing the information is utilized by converting the synthetic light obtained from the overlap into an electrical signal at a photo detector. A common incoherent light is split into two equal parts, the reproducing excitation and the probe lights, whereby the delay time of the reproducing excitation light electric field and the probe light electric field is set to predetermined values, or a first predetermined value is swept to a second predetermined value.