Unidirectional laser emission from polymer-based spiral microdisks

Ben-Messaoud, T.; Zyss, J.
June 2005
Applied Physics Letters;6/13/2005, Vol. 86 Issue 24, p241110
Academic Journal
Lasing emission has been observed in optically pumped DCM-poly(methyl methacrylate)-based spiral-shaped micropillar cavities. By transverse ring shaping of the pump beam, unidirectional laser emission is being clearly favored. The resulting improved far-field directionality evidenced by our imaging technique is shown to originate from the notch of the spiral microcavities.


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