Beam shaping for detection of small object by Phase Correction Element

Masato Yamada; Tatsuo Arai; Yoshiyuki Matsumura; Yasuyuki Kanou

doi:10.1109/SICE.2008.4655026

Beam shaping for detection of small object by Phase Correction Element

Masato Yamada^*, Tatsuo Arai, Yoshiyuki Matsumura, Yasuyuki Kanou

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The spot size is determined by the wavelength of the laser and the numerical aperture (NA) of the objective lens. So it cannot be below the diffraction limit. There is, however, a method of increasing the resolution of an ideal optical system by varying the state of the laser light that enters the objective lens. This is a kind of super-resolution. That method, however, generates side-lobes, which are a characteristic of super-resolution. We report a method of eliminating the effects of side lobes through beam shaping. We evaluated the data reading characteristic for when the phase correction element was applied to an optical disk.

Original language	English
Title of host publication	Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology
Pages	2188-2191
Number of pages	4
DOIs	https://doi.org/10.1109/SICE.2008.4655026
Publication status	Published - 2008
Externally published	Yes
Event	SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology - Tokyo, Japan Duration: 20 Aug 2008 → 22 Aug 2008

Publication series

Name	Proceedings of the SICE Annual Conference

Conference

Conference	SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology
Country/Territory	Japan
City	Tokyo
Period	20/08/08 → 22/08/08

Keywords

Beam shaping
Optical disk
Phase correction element

Access to Document

10.1109/SICE.2008.4655026

Cite this

Yamada, M., Arai, T., Matsumura, Y., & Kanou, Y. (2008). Beam shaping for detection of small object by Phase Correction Element. In Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology (pp. 2188-2191). Article 4655026 (Proceedings of the SICE Annual Conference). https://doi.org/10.1109/SICE.2008.4655026

@inproceedings{471715ee142e4e619fa79ca53766405f,

title = "Beam shaping for detection of small object by Phase Correction Element",

abstract = "The spot size is determined by the wavelength of the laser and the numerical aperture (NA) of the objective lens. So it cannot be below the diffraction limit. There is, however, a method of increasing the resolution of an ideal optical system by varying the state of the laser light that enters the objective lens. This is a kind of super-resolution. That method, however, generates side-lobes, which are a characteristic of super-resolution. We report a method of eliminating the effects of side lobes through beam shaping. We evaluated the data reading characteristic for when the phase correction element was applied to an optical disk.",

keywords = "Beam shaping, Optical disk, Phase correction element",

author = "Masato Yamada and Tatsuo Arai and Yoshiyuki Matsumura and Yasuyuki Kanou",

year = "2008",

doi = "10.1109/SICE.2008.4655026",

language = "English",

isbn = "9784907764296",

series = "Proceedings of the SICE Annual Conference",

pages = "2188--2191",

booktitle = "Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology",

note = "SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology ; Conference date: 20-08-2008 Through 22-08-2008",

}

Yamada, M, Arai, T, Matsumura, Y & Kanou, Y 2008, Beam shaping for detection of small object by Phase Correction Element. in Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology., 4655026, Proceedings of the SICE Annual Conference, pp. 2188-2191, SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology, Tokyo, Japan, 20/08/08. https://doi.org/10.1109/SICE.2008.4655026

Beam shaping for detection of small object by Phase Correction Element. / Yamada, Masato; Arai, Tatsuo; Matsumura, Yoshiyuki et al.
Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology. 2008. p. 2188-2191 4655026 (Proceedings of the SICE Annual Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Beam shaping for detection of small object by Phase Correction Element

AU - Yamada, Masato

AU - Arai, Tatsuo

AU - Matsumura, Yoshiyuki

AU - Kanou, Yasuyuki

PY - 2008

Y1 - 2008

N2 - The spot size is determined by the wavelength of the laser and the numerical aperture (NA) of the objective lens. So it cannot be below the diffraction limit. There is, however, a method of increasing the resolution of an ideal optical system by varying the state of the laser light that enters the objective lens. This is a kind of super-resolution. That method, however, generates side-lobes, which are a characteristic of super-resolution. We report a method of eliminating the effects of side lobes through beam shaping. We evaluated the data reading characteristic for when the phase correction element was applied to an optical disk.

AB - The spot size is determined by the wavelength of the laser and the numerical aperture (NA) of the objective lens. So it cannot be below the diffraction limit. There is, however, a method of increasing the resolution of an ideal optical system by varying the state of the laser light that enters the objective lens. This is a kind of super-resolution. That method, however, generates side-lobes, which are a characteristic of super-resolution. We report a method of eliminating the effects of side lobes through beam shaping. We evaluated the data reading characteristic for when the phase correction element was applied to an optical disk.

KW - Beam shaping

KW - Optical disk

KW - Phase correction element

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U2 - 10.1109/SICE.2008.4655026

DO - 10.1109/SICE.2008.4655026

M3 - Conference contribution

AN - SCOPUS:56749151277

SN - 9784907764296

T3 - Proceedings of the SICE Annual Conference

SP - 2188

EP - 2191

BT - Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology

T2 - SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology

Y2 - 20 August 2008 through 22 August 2008

ER -

Beam shaping for detection of small object by Phase Correction Element

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Keywords

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