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Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
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Sm(DBM)3Phen-doped poly(methyl methacrylate) for three-dimensional multilayered optical memory.

Hongfang Jiu1, Huohong Tang, Jingli Zhou

  • 1Structure Research Laboratory and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.

Optics Letters
|April 19, 2005
PubMed
Summary

Submicrometer voids form in doped poly(methyl methacrylate) (PMMA) using infrared laser multiphoton absorption. This process enables high-density optical data storage via 3D void arrangement.

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Area of Science:

  • Materials Science
  • Optics and Photonics
  • Laser Physics

Background:

  • Poly(methyl methacrylate) (PMMA) is a versatile polymer with applications in optics.
  • Multiphoton absorption offers precise material modification capabilities.
  • Rare-earth complex doping can alter polymer optical properties.

Purpose of the Study:

  • To investigate the formation of submicrometer voids in Sm(DBM)3Phen-doped PMMA.
  • To explore the use of ultrashort-pulsed infrared lasers for void creation.
  • To assess the potential for optical data storage applications.

Main Methods:

  • Focusing an 800 nm, 200 fs ultrashort-pulsed infrared laser beam into Sm(DBM)3Phen-doped PMMA.
  • Utilizing multiphoton absorption for localized material modification.
  • Employing optical microscopy and reflection-type confocal microscopy for void detection.

Main Results:

  • Successfully formed submicrometer voids within the doped PMMA material.
  • Observed significant changes in refractive index associated with void formation.
  • Detected fluorescence from the voids, aiding in their visualization.
  • Demonstrated the possibility of arranging voids in a 3D multilayered structure.

Conclusions:

  • Multiphoton absorption with infrared lasers is an effective method for creating submicrometer voids in doped PMMA.
  • The refractive index changes and fluorescence of voids facilitate their detection.
  • The controlled formation and arrangement of voids show promise for high-density optical data storage.