Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Publication

Photonic-crystal microcavity laser with site-controlled quantum-wire active medium

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Kirill Atlasov, Milan Calic
2009
Journal Articles

Résumé

Site-controlled quantum-wire photonic-crystal microcavity laser is experimentally demonstrated using optical pumping. The single-mode lasing and threshold are established based on the transient laser response, linewidth narrowing, and the details of the non-linear power input-output charateristics. Average-power threshold as low as similar to 240 nW (absorbed power) and spontaneous emission coupling coefficient beta similar to 0.3 are derived. (C) 2009 Optical Society of America

Source officielle

https://infoscience.epfl.ch/entities/publication/70fc0141-ac11-4260-8a5f-4732476dbca7

À propos de ce résultat

Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Kirill Atlasov, Milan Calic
2009
Journal Articles

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/70fc0141-ac11-4260-8a5f-4732476dbca7

À propos de ce résultat

Concepts associés (14)

Graphène

Le graphène est un matériau bidimensionnel cristallin, forme allotropique du carbone dont l'empilement constitue le graphite. Cette définition théorique est donnée par le physicien en 1947. Par la suite, le travail de différents groupes de recherche permettra de se rendre compte que la structure du graphène tout comme ses propriétés ne sont pas uniques et dépendent de sa synthèse/extraction (détaillée dans la section Production).

Whispering-gallery wave

Whispering-gallery waves, or whispering-gallery modes, are a type of wave that can travel around a concave surface. Originally discovered for sound waves in the whispering gallery of St Paul's Cathedral, they can exist for light and for other waves, with important applications in nondestructive testing, lasing, cooling and sensing, as well as in astronomy. Whispering-gallery waves were first explained for the case of St Paul's Cathedral circa 1878 by Lord Rayleigh, who revised a previous misconception that whispers could be heard across the dome but not at any intermediate position.

Laser linewidth

Laser linewidth is the spectral linewidth of a laser beam. Two of the most distinctive characteristics of laser emission are spatial coherence and spectral coherence. While spatial coherence is related to the beam divergence of the laser, spectral coherence is evaluated by measuring the linewidth of laser radiation. The first human-made coherent light source was a maser. The acronym MASER stands for "Microwave Amplification by Stimulated Emission of Radiation". More precisely, it was the ammonia maser operating at 12.

Afficher plus

Publications associées (30)

Afficher plus

Photonic-crystal microcavity laser with site-controlled quantum-wire active medium

Graph Chatbot

Exciton migration in two-dimensional materials

Photothermal spectroscopy on-chip sensor for the measurement of a PMMA film using a silicon nitride micro-ring resonator and an external cavity quantum cascade laser

Study of growth-induced point defects and their impact on InGaN-based optoelectronic devices