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Atomic Force Microscopy01:08

Atomic Force Microscopy

Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
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Patterning via Optical Saturable Transitions - Fabrication and Characterization
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Published on: December 11, 2014

Surface nanoscale axial photonics.

M Sumetsky1, J M Fini

  • 1OFS Laboratories, Somerset, NJ 08873, USA. sumetski@ofsoptics.com

Optics Express
|January 26, 2012
PubMed
Summary
This summary is machine-generated.

Surface Nanoscale Axial Photonics (SNAP) offers a solution to light loss in photonic devices. This new platform uses optical fiber modes for low-loss light manipulation, enabling applications in optical computing and communications.

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Area of Science:

  • Photonics
  • Optical Computing
  • Materials Science

Background:

  • Photonic integration is key for advanced optical computing and communications.
  • Surface roughness in microphotonic devices causes significant light attenuation, hindering progress.
  • Existing methods struggle to mitigate light loss effectively.

Purpose of the Study:

  • To introduce Surface Nanoscale Axial Photonics (SNAP) as a novel platform to overcome light attenuation in photonic devices.
  • To demonstrate the capability of SNAP for precise light manipulation.
  • To explore the potential applications of SNAP in optical technologies.

Main Methods:

  • Utilizing whispering gallery modes that propagate axially along an optical fiber surface.
  • Employing the one-dimensional Schrödinger equation to model mode propagation.
  • Introducing nanoscale variations in fiber radius to steer light modes.
  • Experimental validation of theoretical predictions.

Main Results:

  • Achieved extremely low optical loss due to inherent low surface roughness of drawn fibers.
  • Demonstrated light localization in quantum wells.
  • Showcased the ability to halt light using a point source.
  • Experimentally verified light tunneling through potential barriers and the existence of dark states.
  • Results showed excellent agreement with theoretical models.

Conclusions:

  • SNAP provides a viable solution to the critical challenge of light attenuation in photonic devices.
  • The platform enables precise control over light propagation at the nanoscale.
  • SNAP technology holds significant potential for developing advanced filters, switches, light-slowing devices, and sensors.