Two-Layer Ultra-High Density X-Ray Optical Memory

An application of the grazing-angle incidence hard x-ray optical nanoscope in ultra-high density digital data read-out device

“…Another mechanism of the digital information read-out procedure utilizes the grazing-angle incidence x-ray reflection (GIX) technique [4]. These two mechanisms of the digital information read-out procedure enable, in principle, the fabrication and exploitation of two-layer X-ROM (see [5]).…”

“…These two mechanisms of the digital information read-out procedure enable, in principle, the fabrication and exploitation of two-layer X-ROM (see [5]). Angle of incidence of the x-ray micro beam is different for each storage layer of two-layer X-ROM (see [5]). …”

“…Presented theoretical paper is devoted to further evolution of concepts suggested in papers [2][3][4][5]. We present here a setup of grazing-angle incidence hard-x-ray nanoscope (GIXN, see Sec.…”

“…2 and e.g. papers [2][3][4][5]) is the radically new x-ray-based optical data storage technology with digital data density of one terabit per square centimeter of the storage medium surface. Digital data read-out procedure from such ultrahigh-density x-ray optical data storage media is performed via grazing-angle incident x-ray micro beam.…”

“…Thus, each value of the wavelength i λ from the region (6) is in correspondence with the chosen value of the angle of incidence i θ from the region (5) according to the requirement to set the angle of incidence i θ of the x-ray micro beam equal to kinematic Bragg angle Bθ . Note that in angular region, where the specular vacuum wave suppression phenomenon takes place, the minimum value of the X-appropriate for the proposed digital data read-out procedure[2][3][4][5], so mentioned extremum values give the possibility to choose optimally the angle of incidence i θ of the x-ray micro beam and, consequently, the incident x-radiation wavelength i λ , according to condition(6).…”