J
James Howard Coombs
Researcher at Philips
Publications - 13
Citations - 452
James Howard Coombs is an academic researcher from Philips. The author has contributed to research in topics: Crystallization & Nucleation. The author has an hindex of 6, co-authored 13 publications receiving 445 citations.
Papers
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Journal ArticleDOI
Laser‐induced crystallization phenomena in GeTe‐based alloys. I. Characterization of nucleation and growth
TL;DR: In this paper, the laser-induced crystallization behavior of GeTe-based amorphous alloy thin films has been quantitatively studied by local reflection measurements with a focused 780 nm laser.
Journal ArticleDOI
Laser‐induced crystallization phenomena in GeTe‐based alloys. II. Composition dependence of nucleation and growth
TL;DR: In this paper, the laser-induced crystallization behavior of GeTe-based amorphous alloys has been measured with a novel multipulse laser technique, which enables the composition dependence of the nucleation rate and crystal growth speed to be independently followed.
Patent
Information reading system and record carrier and reading device for use in such a system
TL;DR: In this paper, a record carrier consisting of at least two parallel tracks (2a, 2b) whose mutual distance is so small that the radiation beam is modulated by the information patterns of the two tracks when the tracks are scanned by a focused radiation beam along a line indicating the center between the tracks.
Patent
Reversible optical information medium
TL;DR: In this article, a reversible optical information medium comprising a substrate (1), a first dielectric layer (2), a phase-change recording layer on the basis of Ge-Sb-Te (3), a second dielectoric layer (4), and a metal mirror layer (5).
Patent
Method and device for recording a mark having a substantially constant number of pulses per unit length independent of writing speed on an optical information carrier
Bernardus A. J. Jacobs,James Howard Coombs,Spruit Johannes H M,Johan P. W. B. Duchateau,Guofu F. Zhou +4 more
TL;DR: In this paper, a method for recording an optical information carrier, in which marks representing recorded data are written at different writing speeds by radiation pulses of equal length and power, independent of the writing speed, is described.