Scanning near-field magneto-optic microscopy using illuminated fiber tips

Eggers, Georg; Rosenberger, A.; Held, N.; Münnemann, Ansgar; Güntherodt, G.; Fumagalli, P.

doi:10.1016/s0304-3991(97)00099-5

Cited by 25 publications

(13 citation statements)

References 22 publications

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“…In order to obtain magneto-optical (MO) signal, the polarization state of the light scattered from the sample should be preserved. Many groups have reported MO-SNOM with transmission-mode by using a tapered fiber-probe coated metal with an aperture [1][2][3]. Considering that most of magnetic materials are opaque, however, an apertureless reflection-mode MO-SNOM is the most suitable technique for the MO imaging.…”

Section: Introductionmentioning

confidence: 99%

Polarization State of Scattered Light in Apertureless Reflection-mode Scanning Near-Field Optical Microscopy

Cai¹,

Aoyagi²,

Emoto³

et al. 2013

Journal of Magnetics

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We studied the polarization state in an apertureless scanning near-field microscopy (a-SNOM) operating in reflection mode by using three-dimensional Finite-difference Time-domain (FDTD) method. As a result, the electric field around tip apex in the near-field region enhanced four times stronger than the incident light for ppolarization when the tip-sample separation was 10 nm. We find that the p-and s-polarization state is maintained for the scattered light when the probe is perpendicular to the sample. When the probe is not perpendicular to the sample, the polarization state of scattered light will rotate an angle that equals to the inclination angle of probe with p-polarization illumination. On the other hand, the polarization state will not rotate with s-polarization illumination.

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Section: Introductionmentioning

confidence: 99%

Polarization State of Scattered Light in Apertureless Reflection-mode Scanning Near-Field Optical Microscopy

Cai¹,

Aoyagi²,

Emoto³

et al. 2013

Journal of Magnetics

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show abstract

“…Betzig et al [62] visualized 100-nm magnetic domains and claimed spatial resolution of 30-50 nm. The possibility of MO domain imaging was confirmed in both the transmission regime (Faraday geometry) [63,64] and the reflection regime (Kerr microscopy) [65][66][67].…”

Section: Scanning Near-field Optical Microscopymentioning

confidence: 86%

Magnetooptics of Granular Materials and New Optical Methods of Magnetic Nanoparticles and Nanostructures Imaging

Belotelov

Perlo

Zvezdin³

2004

Metal–Polymer Nanocomposites

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“…10.8a. A laser beam is coupled to [73], Copyright (1998) with permission from Elsevier an optical fiber SNOM probe ending with an aperture with a diameter in the 50-250 nm range. The aperture is thus scanned by means of a piezoelectric actuator on top of the sample within the near-field region, at a constant distance or at a constant height.…”

Section: Static Polarization Snommentioning

confidence: 99%

Polarization-Modulation Techniques in Near-Field Optical Microscopy for Imaging of Polarization Anisotropy in Photonic Nanostructures

Gucciardi

Micheletto

Kawakami

et al. 2006

Applied Scanning Probe Methods II

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Scanning near-field magneto-optic microscopy using illuminated fiber tips

Cited by 25 publications

References 22 publications

Polarization State of Scattered Light in Apertureless Reflection-mode Scanning Near-Field Optical Microscopy

Polarization State of Scattered Light in Apertureless Reflection-mode Scanning Near-Field Optical Microscopy

Magnetooptics of Granular Materials and New Optical Methods of Magnetic Nanoparticles and Nanostructures Imaging

Polarization-Modulation Techniques in Near-Field Optical Microscopy for Imaging of Polarization Anisotropy in Photonic Nanostructures

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