A cavity-snom (scanning near-field optical microscopy) head using a laser diode

Kenchi Ito; Toshimichi Shintani; Sumio Hosaka; Masaru Muranishi

doi:10.1143/jjap.37.3759

A cavity-snom (scanning near-field optical microscopy) head using a laser diode

Kenchi Ito, Toshimichi Shintani, Sumio Hosaka, Masaru Muranishi

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

A cavity-SNOM (scanning near-field optical microscope) head using a laser diode is proposed and studied theoretically and experimentally. Theoretically, we study the optical properties using conventional rate equations. Several conditions to detect the SNOM signal with a photodiode are discussed. Experimentally, the dependence of output power of the laser diode on the injection current is measured. A sufficiently strong modulation signal is detected using a tapered fiber as the probe, but no modulation signal is detected using a tapered fiber with a small aperture (SNOM probe). The conditions for detecting a signal using a SNOM probe are also discussed, and we suggest that a laser diode with a SNOM probe fabricated on its facet is essential for realizing a practical cavity-SNOM head.

Original language	English
Pages (from-to)	3759-3763
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	37
Issue number	6 SUPPL. B
DOIs	https://doi.org/10.1143/jjap.37.3759
Publication status	Published - 1998 Jun
Externally published	Yes

Keywords

Cavity
Laser diode
Optical recording
SNOM

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/jjap.37.3759

Cite this

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abstract = "A cavity-SNOM (scanning near-field optical microscope) head using a laser diode is proposed and studied theoretically and experimentally. Theoretically, we study the optical properties using conventional rate equations. Several conditions to detect the SNOM signal with a photodiode are discussed. Experimentally, the dependence of output power of the laser diode on the injection current is measured. A sufficiently strong modulation signal is detected using a tapered fiber as the probe, but no modulation signal is detected using a tapered fiber with a small aperture (SNOM probe). The conditions for detecting a signal using a SNOM probe are also discussed, and we suggest that a laser diode with a SNOM probe fabricated on its facet is essential for realizing a practical cavity-SNOM head.",

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AU - Ito, Kenchi

AU - Shintani, Toshimichi

AU - Hosaka, Sumio

AU - Muranishi, Masaru

PY - 1998/6

Y1 - 1998/6

N2 - A cavity-SNOM (scanning near-field optical microscope) head using a laser diode is proposed and studied theoretically and experimentally. Theoretically, we study the optical properties using conventional rate equations. Several conditions to detect the SNOM signal with a photodiode are discussed. Experimentally, the dependence of output power of the laser diode on the injection current is measured. A sufficiently strong modulation signal is detected using a tapered fiber as the probe, but no modulation signal is detected using a tapered fiber with a small aperture (SNOM probe). The conditions for detecting a signal using a SNOM probe are also discussed, and we suggest that a laser diode with a SNOM probe fabricated on its facet is essential for realizing a practical cavity-SNOM head.

AB - A cavity-SNOM (scanning near-field optical microscope) head using a laser diode is proposed and studied theoretically and experimentally. Theoretically, we study the optical properties using conventional rate equations. Several conditions to detect the SNOM signal with a photodiode are discussed. Experimentally, the dependence of output power of the laser diode on the injection current is measured. A sufficiently strong modulation signal is detected using a tapered fiber as the probe, but no modulation signal is detected using a tapered fiber with a small aperture (SNOM probe). The conditions for detecting a signal using a SNOM probe are also discussed, and we suggest that a laser diode with a SNOM probe fabricated on its facet is essential for realizing a practical cavity-SNOM head.

KW - Cavity

KW - Laser diode

KW - Optical recording

KW - SNOM

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A cavity-snom (scanning near-field optical microscopy) head using a laser diode

Abstract

Keywords

ASJC Scopus subject areas

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