Abstract
Vacuum sublimed thin films of the blue dye hydrogen phthalocyanine (H2Pc) were incorporated into various optical recording structures. The dye was shown to be thermally, hydrolytically, and oxidatively stable. In all cases, the writing mechanisms are dependent on the sublimation of H2Pc. Several recording structures which take advantage of the sublimation property of H2Pc are demonstrated, including pit forming and bubble forming media. These H2Pc-based optical recording structures show very high optical contrast and low writing threshold energies. In addition, very thin films (50–75Å) of H2Pc were incorporated into a tellurium-based medium, which significantly enhanced the writing contrast observed in that medium.
Similar content being viewed by others
References
R.C. Miller, R.H. Willens, H.A. Watson, L.A. D'Asaro, M. Feldman: Bell. Syst. Tech. J.58, 1909–1998 (1979)
P. Kivits, R. de Bont, B. Jacobs, P. Zalm: Thin Solid Films87, 215–231 (1982)
R.A. Bartolini: Proc. IEEE70, 589 (1982)
S.Y. Suh: Topical Meeting on Optical Data Storage, Incline Village, Nevada (1983)
G.A.N. Connell, R.I. Johnson, D. Kowalski, C. DePuy: Optical Disk Technology, Proc. SPIE329, 166 (1982)
A.E. Bell: J. Appl. Phys.53, 3430 (1982)
A. Bloom, W.J. Burke: U.S. Patent 4,241,355 (Dec. 23, 1980) Assignee: RCA
J. van der Veen, P.J. Kivits, M.R.J. de Bont: U.S. Patent 4,298,975 (Nov. 3, 1981) Assignee: U.S. Philips Corp
Jpn. Kokai Tokkyo Koho JP 56, 130, 742, Assignee: Asahi Chemical Ind., October 13, 1981
P. Kivits, R. de Bont, J. van der Veen: Appl. Phys. A26, 101 (1981)
K. Ogawa, Y. Goto, N. Koshino, S. Ogawa: Technical Digest, Conf. on Lasers and Electro-optics (Optical Society of America), Phoenix, AZ (1982) p. 140
Kirk-Othmer Encyclopedia of Chemical Technology, Vol. 17, ed. by M. Grayson, D. Eckroth (Wiley, New York 1982) p. 777
T.W. Smith, G.E., Johnson, A.T. Ward, D.J. Luca: Optical Disk Technology, Proc. SPIE329, 228 (1982)
F. Gutman, L.E. Lyons: Organic Semiconductors, P. A (Robert E. Krieger Publishers, Malibar, FL 1981) p. 149
B.H. Shectman: Ph.D. Dissertation, Photoemission and Optical Studies of Organic Solids; Phthalocyanines and Porphyrins, Stanford University (1968)
O.S. Heavens:Optical Properties of Thin Solid Films (Dover, New York 1955)
A.E. Bell, F.W. Spong: IEEE J. QE-14, 487 (1978)
H.G. Craighhead, R.E. Howard, R.W. Smith, D.A. Snyder: Optical Disk Technology, Proc. SPIE329, 202–205 (1982)
R.A. Bartolini, A.E. Bell, F.W. Spong: IEEE J. QE-17, 69 (1981)
R.P. Freese, R.F. Wilson, L.D. Wald, W.B. Robbins, T.C. Smith: Optical Disk Technology, Proc. SPIE329, 174 (1982)
J. Cornet, J.C. Lehureau, F. LeCarvennec: Technical Digest, Conf. on Lasers and Electro-optics (Optical Society of America). Washington (1981) p. 122
D.J. Broer, L. Vriens: Appl. Phys.A32, 107–123 (1983)