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Related Experiment Videos

Immaterial tip concept by light confinement.

T Grosjean1, D Courjon

  • 1Laboratoire d'Optique P.M. Duffieux, UMR 6603, Institut des Microtechniques de Franche-Comté FR 67, 25030 Besançon cedex, France. tgrosjean@lob.univ-fcomte.fr

Journal of Microscopy
|April 20, 2001
PubMed
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Combining TM polarized coherent evanescent light beams creates confined light distributions. This evanescent energy distribution acts as a virtual tip for non-contact sample scanning.

Area of Science:

  • Optics and Photonics
  • Nanotechnology
  • Scanning Probe Microscopy

Background:

  • Evanescent light beams exhibit unique properties for near-field interactions.
  • Confined light distributions are crucial for high-resolution imaging and manipulation.
  • Non-contact scanning methods are essential to avoid sample damage.

Purpose of the Study:

  • To demonstrate the creation of (x, y) confined light distributions using TM polarized coherent evanescent light beams.
  • To investigate the z-distance independence of the light field's spatial distribution.
  • To explore the application of this energy distribution as a virtual tip for non-contact scanning.

Main Methods:

  • Interference of transverse magnetic (TM) polarized coherent evanescent light beams.

Related Experiment Videos

  • Analysis of the spatial distribution of the electric field's square modulus.
  • Conceptualization of the evanescent energy distribution as a virtual scanning tip.

    • Main Results:

    • Achieved (x, y) confined light distributions through beam combination.
    • Observed that the spatial energy distribution remains constant along the z-distance due to the evanescent nature.
    • Established the potential of this stable, confined light as a non-contact scanning probe.

    Conclusions:

    • The combination of TM polarized evanescent beams offers a novel method for generating stable, confined light fields.
    • The z-invariant nature of the energy distribution is key to its utility.
    • This technique presents a promising approach for developing advanced non-contact scanning probe microscopy techniques.