Three-Dimensional Organic Microlasers with Low Lasing Thresholds Fabricated by Multiphoton Lithography

Abstract

Cuboid-shaped organic microcavities containing a pyrromethene laser dye and supported upon a photonic crystal have been investigated as an approach to reducing the lasing threshold of the cavities. Multiphoton lithography facilitated fabrication of the cuboid cavities directly on the substrate or on the decoupling structure, while similar structures were fabricated on the substrate by UV lithography for comparison. Significant reduction of the lasing threshold by a factor of ~30 has been observed for cavities supported by the photonic crystal relative to those fabricated on the substrate. The lasing mode spectra of the cuboid microresonators provide strong evidence showing that the lasing modes are localized in the horizontal plane, with the shape of an inscribed diamond.

11 pages, 11 figures, 25 references

References in corpus (7)

• On-chip Single Nanoparticle Detection and Sizing by Mode Splitting in an Ultra-high-Q Microresonator
• Recent advances in solid-state organic lasers
• Ultra-high-Q tunable whispering-gallery-mode microresonator
• Inferring periodic orbits from spectra of simple shaped micro-lasers
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Cited by in corpus (6)

• Unidirectional light emission from low-index polymer microlasers
• Localized lasing modes of triangular organic microlasers
• Spectroscopic studies of the mechanism of reversible photodegradation of 1-substituted aminoanthraquinone-doped polymers
• Three-dimensional micro-billiard lasers: the square pyramid
• Waves and rays in plano-concave laser cavities, Part~II: a semiclassical approach
• Dynamical control of square microlaser emission via symmetry classes