A Cavity-SNOM (scanning near-field optical microscopy) head using a laser diode

被引：9
作者：
Ito, K [1 ]
Shintani, T
Hosaka, S
Muranishi, M
机构：
[1] Hitachi Ltd, Adv Res Lab, Tokyo 1858601, Japan
[2] Hitachi Ltd, Cent Res Lab, Tokyo 1858601, Japan
[3] Hitachi Ltd, Mech Engn Res Lab, Tsuchiura, Ibaragi 3000013, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 6B期
关键词：
SNOM; optical recording; cavity; laser diode;
D O I：
10.1143/JJAP.37.3759
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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.
引用
收藏
页码：3759 / 3763
页数：5
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