Abstract

The signal-to-noise ratio (SNR) on the fluorescence readout of a near-field photochromic memory was theoretically studied. Under various conditions the shot-noise-limited SNR was analyzed. SNR by bright spot recording (BSR) that was better than that by dark spot recording (DSR) was obtained under the condition of low writing power or wide bandwidth. Under the condition of bandwidth W = 1 MHz and P write = 10-8 W only BSR can attain sufficiently high SNR, and the SNR was greater by as much as 30 dB than that of DSR. It was concluded that BSR is a promising method for high-density near-field photochromic memory with a fluorescence readout.

© 1999 Optical Society of America

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References

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  1. D. G. Crowe, “Near-field optical disk recording for very high data density,” Appl. Opt. 30, 4480–4481 (1991).
    [CrossRef] [PubMed]
  2. E. Betzig, J. K. Trautman, R. Wolfe, E. M. Gyorgy, P. L. Finn, “Near-field magneto-optics and high density data storage,” Appl. Phys. Lett. 61, 142–145 (1993).
    [CrossRef]
  3. S. Jiang, J. Ichihashi, H. Monobe, M. Fujihira, M. Ohtsu, “Highly localized photochemical processes in LB films of photochromic material by using a photon scanning tunneling microscope,” Opt. Commun. 106, 173–177 (1994).
    [CrossRef]
  4. S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
    [CrossRef]
  5. M. Hamano, M. Irie, “Rewritable near-field optical recording on photochromic thin films,” Jpn. J. Appl. Phys. 35, 1764–1767 (1996).
    [CrossRef]
  6. M. Irie, ed., Photo-Reactive Materials for Ultrahigh Density Optical Memory (Elsevier, Amsterdam, 1994).
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef]
  13. T. Tsujioka, Y. Shimizu, M. Irie, “Crosstalk in photon-mode photochromic multi-wavelength recording,” Jpn. J. Appl. Phys. 33, 1914–1919 (1994).
    [CrossRef]
  14. T. Tsujioka, M. Kume, M. Irie, “Optical density dependence of write/read characteristics in photon-mode-photochromic memory,” Jpn. J. Appl. Phys. 35, 4353–4360 (1996).
    [CrossRef]
  15. T. Tsujioka, F. Tatezono, T. Harada, K. Kuroki, M. Irie, “Recording sensitivity and super-low power readout of photon-mode photochromic memory,” Jpn. J. Appl. Phys. 33, 5788–5792 (1994).
    [CrossRef]
  16. T. Tsujioka, M. Kume, M. Irie, “Super-low power readout characteristics of photochromic memory,” Jpn. J. Appl. Phys. 34, 6439–6433 (1995).
    [CrossRef]
  17. T. Tsujioka, M. Irie, “Theoretical study of the recording density limit of a near-field photochromic memory,” J. Opt. Soc. Am. B 15, 1140–1146 (1995).
    [CrossRef]
  18. T. Tsujioka, M. Irie, “Fluorescence readout of near-field photochromic memory,” Appl. Opt. 37, 4419–4424 (1998).
    [CrossRef]

1998 (1)

1997 (3)

T. Tsujioka, M. Kume, Y. Horikawa, A. Ishikawa, M. Irie, “Super-resolution disk with a photochromic mask layer,” Jpn. J. Appl. Phys. 36, 526–529 (1997).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Analysis of signal-to-noise ratio in photochromic super-resolution readout,” Opt. Rev. 4, 655–659 (1997).
[CrossRef]

A. Toriumi, J. M. Hermann, S. Kawata, “Nondestructive readout of a three-dimensional photochromic optical memory with a near-infrared differential phase-contrast microscope,” Opt. Lett. 22, 555–557 (1997).
[CrossRef] [PubMed]

1996 (3)

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

M. Hamano, M. Irie, “Rewritable near-field optical recording on photochromic thin films,” Jpn. J. Appl. Phys. 35, 1764–1767 (1996).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Optical density dependence of write/read characteristics in photon-mode-photochromic memory,” Jpn. J. Appl. Phys. 35, 4353–4360 (1996).
[CrossRef]

1995 (3)

T. Tsujioka, M. Kume, M. Irie, “Super-low power readout characteristics of photochromic memory,” Jpn. J. Appl. Phys. 34, 6439–6433 (1995).
[CrossRef]

T. Tsujioka, M. Irie, “Theoretical study of the recording density limit of a near-field photochromic memory,” J. Opt. Soc. Am. B 15, 1140–1146 (1995).
[CrossRef]

T. Tsujioka, T. Harada, M. Kume, K. Kuroki, M. Irie, “Super-resolution with a photochromic mask layer in an optical memory,” Opt. Rev. 2, 181–186 (1995).
[CrossRef]

1994 (4)

S. Jiang, J. Ichihashi, H. Monobe, M. Fujihira, M. Ohtsu, “Highly localized photochemical processes in LB films of photochromic material by using a photon scanning tunneling microscope,” Opt. Commun. 106, 173–177 (1994).
[CrossRef]

T. Tsujioka, F. Tatezono, T. Harada, K. Kuroki, M. Irie, “Recording sensitivity and super-low power readout of photon-mode photochromic memory,” Jpn. J. Appl. Phys. 33, 5788–5792 (1994).
[CrossRef]

M. Suzuki, T. Hashida, J. Hibino, Y. Kishimoto, “Multiple optical memory using photochromic spiropyran aggregates,” Mol. Cryst. Liq. Cryst. 246, 389–396 (1994).
[CrossRef]

T. Tsujioka, Y. Shimizu, M. Irie, “Crosstalk in photon-mode photochromic multi-wavelength recording,” Jpn. J. Appl. Phys. 33, 1914–1919 (1994).
[CrossRef]

1993 (1)

E. Betzig, J. K. Trautman, R. Wolfe, E. M. Gyorgy, P. L. Finn, “Near-field magneto-optics and high density data storage,” Appl. Phys. Lett. 61, 142–145 (1993).
[CrossRef]

1991 (1)

1990 (1)

Betzig, E.

E. Betzig, J. K. Trautman, R. Wolfe, E. M. Gyorgy, P. L. Finn, “Near-field magneto-optics and high density data storage,” Appl. Phys. Lett. 61, 142–145 (1993).
[CrossRef]

Crowe, D. G.

Esener, S.

Finn, P. L.

E. Betzig, J. K. Trautman, R. Wolfe, E. M. Gyorgy, P. L. Finn, “Near-field magneto-optics and high density data storage,” Appl. Phys. Lett. 61, 142–145 (1993).
[CrossRef]

Fujihira, M.

S. Jiang, J. Ichihashi, H. Monobe, M. Fujihira, M. Ohtsu, “Highly localized photochemical processes in LB films of photochromic material by using a photon scanning tunneling microscope,” Opt. Commun. 106, 173–177 (1994).
[CrossRef]

Gyorgy, E. M.

E. Betzig, J. K. Trautman, R. Wolfe, E. M. Gyorgy, P. L. Finn, “Near-field magneto-optics and high density data storage,” Appl. Phys. Lett. 61, 142–145 (1993).
[CrossRef]

Hamano, M.

M. Hamano, M. Irie, “Rewritable near-field optical recording on photochromic thin films,” Jpn. J. Appl. Phys. 35, 1764–1767 (1996).
[CrossRef]

Harada, T.

T. Tsujioka, T. Harada, M. Kume, K. Kuroki, M. Irie, “Super-resolution with a photochromic mask layer in an optical memory,” Opt. Rev. 2, 181–186 (1995).
[CrossRef]

T. Tsujioka, F. Tatezono, T. Harada, K. Kuroki, M. Irie, “Recording sensitivity and super-low power readout of photon-mode photochromic memory,” Jpn. J. Appl. Phys. 33, 5788–5792 (1994).
[CrossRef]

Hashida, T.

M. Suzuki, T. Hashida, J. Hibino, Y. Kishimoto, “Multiple optical memory using photochromic spiropyran aggregates,” Mol. Cryst. Liq. Cryst. 246, 389–396 (1994).
[CrossRef]

Hermann, J. M.

Hibino, J.

M. Suzuki, T. Hashida, J. Hibino, Y. Kishimoto, “Multiple optical memory using photochromic spiropyran aggregates,” Mol. Cryst. Liq. Cryst. 246, 389–396 (1994).
[CrossRef]

Hirotsune, A.

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Honma, S.

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Horikawa, Y.

T. Tsujioka, M. Kume, Y. Horikawa, A. Ishikawa, M. Irie, “Super-resolution disk with a photochromic mask layer,” Jpn. J. Appl. Phys. 36, 526–529 (1997).
[CrossRef]

Hosaka, S.

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Hunter, S.

Ichihashi, J.

S. Jiang, J. Ichihashi, H. Monobe, M. Fujihira, M. Ohtsu, “Highly localized photochemical processes in LB films of photochromic material by using a photon scanning tunneling microscope,” Opt. Commun. 106, 173–177 (1994).
[CrossRef]

Irie, M.

T. Tsujioka, M. Irie, “Fluorescence readout of near-field photochromic memory,” Appl. Opt. 37, 4419–4424 (1998).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Analysis of signal-to-noise ratio in photochromic super-resolution readout,” Opt. Rev. 4, 655–659 (1997).
[CrossRef]

T. Tsujioka, M. Kume, Y. Horikawa, A. Ishikawa, M. Irie, “Super-resolution disk with a photochromic mask layer,” Jpn. J. Appl. Phys. 36, 526–529 (1997).
[CrossRef]

M. Hamano, M. Irie, “Rewritable near-field optical recording on photochromic thin films,” Jpn. J. Appl. Phys. 35, 1764–1767 (1996).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Optical density dependence of write/read characteristics in photon-mode-photochromic memory,” Jpn. J. Appl. Phys. 35, 4353–4360 (1996).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Super-low power readout characteristics of photochromic memory,” Jpn. J. Appl. Phys. 34, 6439–6433 (1995).
[CrossRef]

T. Tsujioka, M. Irie, “Theoretical study of the recording density limit of a near-field photochromic memory,” J. Opt. Soc. Am. B 15, 1140–1146 (1995).
[CrossRef]

T. Tsujioka, T. Harada, M. Kume, K. Kuroki, M. Irie, “Super-resolution with a photochromic mask layer in an optical memory,” Opt. Rev. 2, 181–186 (1995).
[CrossRef]

T. Tsujioka, F. Tatezono, T. Harada, K. Kuroki, M. Irie, “Recording sensitivity and super-low power readout of photon-mode photochromic memory,” Jpn. J. Appl. Phys. 33, 5788–5792 (1994).
[CrossRef]

T. Tsujioka, Y. Shimizu, M. Irie, “Crosstalk in photon-mode photochromic multi-wavelength recording,” Jpn. J. Appl. Phys. 33, 1914–1919 (1994).
[CrossRef]

Ishikawa, A.

T. Tsujioka, M. Kume, Y. Horikawa, A. Ishikawa, M. Irie, “Super-resolution disk with a photochromic mask layer,” Jpn. J. Appl. Phys. 36, 526–529 (1997).
[CrossRef]

Jiang, S.

S. Jiang, J. Ichihashi, H. Monobe, M. Fujihira, M. Ohtsu, “Highly localized photochemical processes in LB films of photochromic material by using a photon scanning tunneling microscope,” Opt. Commun. 106, 173–177 (1994).
[CrossRef]

Kammer, S.

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Kawata, S.

Kiamilev, F.

Kishimoto, Y.

M. Suzuki, T. Hashida, J. Hibino, Y. Kishimoto, “Multiple optical memory using photochromic spiropyran aggregates,” Mol. Cryst. Liq. Cryst. 246, 389–396 (1994).
[CrossRef]

Kume, M.

T. Tsujioka, M. Kume, Y. Horikawa, A. Ishikawa, M. Irie, “Super-resolution disk with a photochromic mask layer,” Jpn. J. Appl. Phys. 36, 526–529 (1997).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Analysis of signal-to-noise ratio in photochromic super-resolution readout,” Opt. Rev. 4, 655–659 (1997).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Optical density dependence of write/read characteristics in photon-mode-photochromic memory,” Jpn. J. Appl. Phys. 35, 4353–4360 (1996).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Super-low power readout characteristics of photochromic memory,” Jpn. J. Appl. Phys. 34, 6439–6433 (1995).
[CrossRef]

T. Tsujioka, T. Harada, M. Kume, K. Kuroki, M. Irie, “Super-resolution with a photochromic mask layer in an optical memory,” Opt. Rev. 2, 181–186 (1995).
[CrossRef]

Kuroki, K.

T. Tsujioka, T. Harada, M. Kume, K. Kuroki, M. Irie, “Super-resolution with a photochromic mask layer in an optical memory,” Opt. Rev. 2, 181–186 (1995).
[CrossRef]

T. Tsujioka, F. Tatezono, T. Harada, K. Kuroki, M. Irie, “Recording sensitivity and super-low power readout of photon-mode photochromic memory,” Jpn. J. Appl. Phys. 33, 5788–5792 (1994).
[CrossRef]

Miyamoto, M.

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Monobe, H.

S. Jiang, J. Ichihashi, H. Monobe, M. Fujihira, M. Ohtsu, “Highly localized photochemical processes in LB films of photochromic material by using a photon scanning tunneling microscope,” Opt. Commun. 106, 173–177 (1994).
[CrossRef]

Ohtsu, M.

S. Jiang, J. Ichihashi, H. Monobe, M. Fujihira, M. Ohtsu, “Highly localized photochemical processes in LB films of photochromic material by using a photon scanning tunneling microscope,” Opt. Commun. 106, 173–177 (1994).
[CrossRef]

Parthenopoulos, D.

Rentzepis, P. M.

Shimizu, Y.

T. Tsujioka, Y. Shimizu, M. Irie, “Crosstalk in photon-mode photochromic multi-wavelength recording,” Jpn. J. Appl. Phys. 33, 1914–1919 (1994).
[CrossRef]

Shintani, T.

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Suzuki, M.

M. Suzuki, T. Hashida, J. Hibino, Y. Kishimoto, “Multiple optical memory using photochromic spiropyran aggregates,” Mol. Cryst. Liq. Cryst. 246, 389–396 (1994).
[CrossRef]

Tatezono, F.

T. Tsujioka, F. Tatezono, T. Harada, K. Kuroki, M. Irie, “Recording sensitivity and super-low power readout of photon-mode photochromic memory,” Jpn. J. Appl. Phys. 33, 5788–5792 (1994).
[CrossRef]

Terao, M.

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Toriumi, A.

Trautman, J. K.

E. Betzig, J. K. Trautman, R. Wolfe, E. M. Gyorgy, P. L. Finn, “Near-field magneto-optics and high density data storage,” Appl. Phys. Lett. 61, 142–145 (1993).
[CrossRef]

Tsujioka, T.

T. Tsujioka, M. Irie, “Fluorescence readout of near-field photochromic memory,” Appl. Opt. 37, 4419–4424 (1998).
[CrossRef]

T. Tsujioka, M. Kume, Y. Horikawa, A. Ishikawa, M. Irie, “Super-resolution disk with a photochromic mask layer,” Jpn. J. Appl. Phys. 36, 526–529 (1997).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Analysis of signal-to-noise ratio in photochromic super-resolution readout,” Opt. Rev. 4, 655–659 (1997).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Optical density dependence of write/read characteristics in photon-mode-photochromic memory,” Jpn. J. Appl. Phys. 35, 4353–4360 (1996).
[CrossRef]

T. Tsujioka, M. Irie, “Theoretical study of the recording density limit of a near-field photochromic memory,” J. Opt. Soc. Am. B 15, 1140–1146 (1995).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Super-low power readout characteristics of photochromic memory,” Jpn. J. Appl. Phys. 34, 6439–6433 (1995).
[CrossRef]

T. Tsujioka, T. Harada, M. Kume, K. Kuroki, M. Irie, “Super-resolution with a photochromic mask layer in an optical memory,” Opt. Rev. 2, 181–186 (1995).
[CrossRef]

T. Tsujioka, Y. Shimizu, M. Irie, “Crosstalk in photon-mode photochromic multi-wavelength recording,” Jpn. J. Appl. Phys. 33, 1914–1919 (1994).
[CrossRef]

T. Tsujioka, F. Tatezono, T. Harada, K. Kuroki, M. Irie, “Recording sensitivity and super-low power readout of photon-mode photochromic memory,” Jpn. J. Appl. Phys. 33, 5788–5792 (1994).
[CrossRef]

Wolfe, R.

E. Betzig, J. K. Trautman, R. Wolfe, E. M. Gyorgy, P. L. Finn, “Near-field magneto-optics and high density data storage,” Appl. Phys. Lett. 61, 142–145 (1993).
[CrossRef]

Yoshida, M.

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Appl. Opt. (3)

Appl. Phys. Lett. (1)

E. Betzig, J. K. Trautman, R. Wolfe, E. M. Gyorgy, P. L. Finn, “Near-field magneto-optics and high density data storage,” Appl. Phys. Lett. 61, 142–145 (1993).
[CrossRef]

J. Opt. Soc. Am. B (1)

Jpn. J. Appl. Phys. (6)

M. Hamano, M. Irie, “Rewritable near-field optical recording on photochromic thin films,” Jpn. J. Appl. Phys. 35, 1764–1767 (1996).
[CrossRef]

T. Tsujioka, M. Kume, Y. Horikawa, A. Ishikawa, M. Irie, “Super-resolution disk with a photochromic mask layer,” Jpn. J. Appl. Phys. 36, 526–529 (1997).
[CrossRef]

T. Tsujioka, Y. Shimizu, M. Irie, “Crosstalk in photon-mode photochromic multi-wavelength recording,” Jpn. J. Appl. Phys. 33, 1914–1919 (1994).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Optical density dependence of write/read characteristics in photon-mode-photochromic memory,” Jpn. J. Appl. Phys. 35, 4353–4360 (1996).
[CrossRef]

T. Tsujioka, F. Tatezono, T. Harada, K. Kuroki, M. Irie, “Recording sensitivity and super-low power readout of photon-mode photochromic memory,” Jpn. J. Appl. Phys. 33, 5788–5792 (1994).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Super-low power readout characteristics of photochromic memory,” Jpn. J. Appl. Phys. 34, 6439–6433 (1995).
[CrossRef]

Mol. Cryst. Liq. Cryst. (1)

M. Suzuki, T. Hashida, J. Hibino, Y. Kishimoto, “Multiple optical memory using photochromic spiropyran aggregates,” Mol. Cryst. Liq. Cryst. 246, 389–396 (1994).
[CrossRef]

Opt. Commun. (1)

S. Jiang, J. Ichihashi, H. Monobe, M. Fujihira, M. Ohtsu, “Highly localized photochemical processes in LB films of photochromic material by using a photon scanning tunneling microscope,” Opt. Commun. 106, 173–177 (1994).
[CrossRef]

Opt. Lett. (1)

Opt. Rev. (2)

T. Tsujioka, T. Harada, M. Kume, K. Kuroki, M. Irie, “Super-resolution with a photochromic mask layer in an optical memory,” Opt. Rev. 2, 181–186 (1995).
[CrossRef]

T. Tsujioka, M. Kume, M. Irie, “Analysis of signal-to-noise ratio in photochromic super-resolution readout,” Opt. Rev. 4, 655–659 (1997).
[CrossRef]

Thin Solid Films (1)

S. Hosaka, T. Shintani, M. Miyamoto, A. Hirotsune, M. Terao, M. Yoshida, S. Honma, S. Kammer, “Scanning near-field optical microscope with a laser diode and nanometer-sized bit recording,” Thin Solid Films 273, 122–127 (1996).
[CrossRef]

Other (1)

M. Irie, ed., Photo-Reactive Materials for Ultrahigh Density Optical Memory (Elsevier, Amsterdam, 1994).

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Figures (7)

Fig. 1
Fig. 1

Schematic illustration of photochromism. Wavelengths λ1 and λ2 correspond to the absorption bands of A and B isomers, respectively. The wavelength λ3 indicates the wavelength of the fluorescence from the B isomer. The quantum yields of photoreactions from A to B and from B to A and of fluorescence are indicated by ϕ1, ϕ2, and ϕ f , respectively.

Fig. 2
Fig. 2

A fluorescence-detection writing/readout method in a near-field photochromic memory. The initial state of medium contains only the A isomer, and the information writing is performed by irradiation of the light of wavelength λ1. The recorded mark emits the fluorescence, and the land area does not emit the fluorescence. This was called BSR.

Fig. 3
Fig. 3

Another fluorescence-detection writing/readout method in a near-field photochromic memory. The initial state of medium contains only the B isomer, and the information writing is performed by irradiation of the light of wavelength λ2. The recorded mark emits weaker fluorescence than that from the land area. This was called DSR.

Fig. 4
Fig. 4

Fluorescence quantum yield dependence of the SNR. The initial reflectance and the bandwidth were fixed at R ini = 0.9 and W = 1 MHz, respectively.

Fig. 5
Fig. 5

Writing power dependence of the SNR in the case of initial reflectance R ini = 0.9. The quantum yield of the fluorescence was fixed at ϕ f = 0.4.

Fig. 6
Fig. 6

Writing power dependence of the SNR in the case of initial reflectance R ini = 0.1. The quantum yield of the fluorescence was fixed at ϕ f = 0.4.

Fig. 7
Fig. 7

Bandwidth dependence of the SNR in the various cases of R ini. The writing power and the quantum yield of the fluorescence were fixed at P write = 100 nW and ϕ f = 0.4, respectively.

Tables (1)

Tables Icon

Table 1 Parameters Used in the Analysis and Related Equation Numbers

Equations (9)

Equations on this page are rendered with MathJax. Learn more.

Pmedia=Pwrite/read exp-d/Φ.
R1t=2α Pλ1S 1ϕ1R11-R1,
CAt=-CBt,
R1=exp-2.31CA2L,
R2=exp-2.32CB2L,
R2t=-2R21R1R1t,
R2t=2α Pλ2S 2ϕ2R21-R2,
SNRF=12γηλ3Pread exp-d/Φ1-Rlandϕfλ2eWλ31/2,
SNRF=12γηλ3Pread exp-d/Φ|Rmark-Rland|2ϕfλ2eW|2-Rmark-Rland|λ31/2,

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