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Effect of a photonic band gap on the threshold and output power of solid-state lasers and light-emitting diodes

Szymanska, MH; Hughes, AF; Pike, ER; (1999) Effect of a photonic band gap on the threshold and output power of solid-state lasers and light-emitting diodes. Physical Review Letters , 83 (1) 69 - 72. 10.1103/PhysRevLett.83.69. Green open access

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Abstract

We present results for the operation of a three-level solid-state laser both with normal and with completely suppressed spontaneous emission between the lasing levels. The output power difference in these two cases drops as the pump rate is increased above threshold and is not greatly different at higher powers. The threshold pump power, although typically reduced by an order of magnitude, is not zero and our results thus throw further light on the concept of “thresholdless” lasing. The theory is also applicable to light-emitting diodes and amplifiers which function on the same principles as a laser.

Type: Article
Title: Effect of a photonic band gap on the threshold and output power of solid-state lasers and light-emitting diodes
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.83.69
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.83.69
Language: English
Additional information: © 1999 The American Physical Society
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/1412367
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