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Chaos-assisted nonresonant optical pumping of quadrupole-deformed microlasers
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View: Figures


Image of FIG. 1.
FIG. 1.

Comparison of nonresonant pumping schemes in ray simulations for (a) a circular cavity and (b) a quadrupole-deformed microcavity.

Image of FIG. 2.
FIG. 2.

(a) Ray model for the calculation of the intracavity pump intensity when pumped by a plane wave. (b) Average density of ray as function of the angle of incidence for (i) quadrupolar and (ii) circular microcavities.

Image of FIG. 3.
FIG. 3.

Cavity-modified fluorescence and lasing spectra of our QDM, observed for pump power of 22, 33, and , respectively.

Image of FIG. 4.
FIG. 4.

(a) Observed lasing threshold curve for a pumping angle of 50° for our QDM. (b) Inverse of the threshold pump power vs the pumping angle, normalized with respect to (i) for our QDM and (ii) for an undeformed circular cavity with the same as our QDM.

Image of FIG. 5.
FIG. 5.

(Color) Calculated wave distributions for our QDM when a plane wave satisfying is incident at various pumping angles: (a) 90°, (b) 60°, (c) 45°, (d) 30°, and (e) 0°. The pump wavelength is in nonresonant condition. A scar mode of with is shown in (k). In (f)–(j), intensity-intensity overlap with the scar mode is shown just below each wave distribution. (l) Overlap integral as a function of the pumping angle, normalized with respect to .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Chaos-assisted nonresonant optical pumping of quadrupole-deformed microlasers