Limitations on standard procedure of determining internal loss and efficiency in quantum dot lasers
dc.contributor | Virginia Tech. Department of Materials Science and Engineering | en |
dc.contributor.author | Asryan, Levon V. | en |
dc.contributor.department | Materials Science and Engineering (MSE) | en |
dc.date.accessed | 2015-04-24 | en |
dc.date.accessioned | 2015-05-21T19:47:25Z | en |
dc.date.available | 2015-05-21T19:47:25Z | en |
dc.date.issued | 2006-01-01 | en |
dc.description.abstract | Limitations are discussed on the use in quantum dot (QD) lasers of the conventional method of determining internal loss coefficient alpha(int) and internal quantum efficiency eta(int) from a measured plot of the reciprocal slope efficiency versus the cavity length L. The limitations are imposed by the L-dependence of alpha(int) and eta(int) themselves. The effect of internal loss is quantitatively analyzed, which originates from the dependence of alpha(int) on the carrier density, with the latter being L-dependent. In short cavities, a plot of the reciprocal slope efficiency versus L can significantly deviate from a straight line, thus limiting the practicality of the standard procedure. For L longer than several hundred mu m, the limitations are strong in a single-QD-layer laser and moderate in a multiple-QD-layer laser. (c) 2006 American Institute of Physics. | en |
dc.description.sponsorship | United States. Army Research Office - Grant No. W911-NF-05-1-0308 | en |
dc.format.extent | 5 pages | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.citation | Asryan, L. V. (2006). Limitations on standard procedure of determining internal loss and efficiency in quantum dot lasers. Journal of Applied Physics, 99(1). doi: 10.1063/1.2159072 | en |
dc.identifier.doi | https://doi.org/10.1063/1.2159072 | en |
dc.identifier.issn | 0021-8979 | en |
dc.identifier.uri | http://hdl.handle.net/10919/52436 | en |
dc.identifier.url | http://scitation.aip.org/content/aip/journal/jap/99/1/10.1063/1.2159072 | en |
dc.language.iso | en_US | en |
dc.publisher | American Institute of Physics | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | Quantum dots | en |
dc.subject | Quantum wells | en |
dc.subject | Carrier density | en |
dc.subject | Laser resonators | en |
dc.subject | Charge injection | en |
dc.title | Limitations on standard procedure of determining internal loss and efficiency in quantum dot lasers | en |
dc.title.serial | Journal of Applied Physics | en |
dc.type | Article - Refereed | en |
dc.type.dcmitype | Text | en |
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