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Unidirectional laser emission from -conjugated polymer microcavities with broken symmetry
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10.1063/1.2723078
/content/aip/journal/apl/90/16/10.1063/1.2723078
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/16/10.1063/1.2723078
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) Plain microdisk cavity: (a) The emission intensity vs excitation energy showing laser threshold /pulse. The insets are the optical images of the diameter microdisk and chemical structure of the DOO-PPV polymer. The abbreviations L.I. and Ex. I. stand for light intensity and excitation intensity, respectively; is the PFT parameter that is correlated to the wavelength (in ). (b) The laser emission spectrum for ; the inset shows the PFT of the emission spectrum, where is the Fourier transform parameter that is correlated with the emission wavelength. in the emission spectrum and in the PFT are assigned.

Image of FIG. 2.
FIG. 2.

(Color online) Microspiral cavity: (a) The laser emission spectrum and its PFT (left inset) of two microspirals with (i) (red/gray line) and (ii) (blue/full line). The right inset is the laser emission vs , showing /pulse for both microcavities. L.I., Ex. I., and are the same as in Fig. 1. (b) The azimuthal emission intensity distribution for microspiral (i) at (red/gray line) and [green and blue (full) lines]. The inset is the optical image of the microspiral cavity (i) with .

Image of FIG. 3.
FIG. 3.

(Color online) Microdisk cavity with line defect: (a) The laser emission spectrum and its PFT (left inset). The right inset shows the emission intensity vs measured at an azimuthal angle of 340° showing /pulse. (b) The azimuthal emission intensity distribution for the line defect microdisk cavity at (red/gray line) and [green and blue (full) lines]. The inset is the microcavity optical image, where and the line defect size is with .

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/content/aip/journal/apl/90/16/10.1063/1.2723078
2007-04-16
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Unidirectional laser emission from π-conjugated polymer microcavities with broken symmetry
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/16/10.1063/1.2723078
10.1063/1.2723078
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