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Demonstration of coherent emission from high-$beta$ photonic crystal nanolasers at room temperature

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 نشر من قبل Richard Hostein
 تاريخ النشر 2010
  مجال البحث فيزياء
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 تأليف Richard Hostein




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We report on lasing at room temperature and at telecommunications wavelength from photonic crystal nanocavities based on InAsP/InP quantum dots. Such laser cavities with a small modal volume and high quality factor display a high spontaneous emission coupling factor beta. Lasing is confirmed by measuring the second order autocorrelation function. A smooth transition from chaotic to coherent emission is observed, and coherent emission is obtained at 8 times the threshold power.



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