{"title":"氮化镓晶体中电子和声子流的飞秒开关","authors":"R. Brazis, R. Raguotis","doi":"10.1109/ICTON.2006.248374","DOIUrl":null,"url":null,"abstract":"Ensemble Monte Carlo method is employed for the study of electron and phonon system in cubic GaN crystals subjected to femtosecond electric field pulses. Transient response is considered at the lattice temperatures of 15 and 300 K. THz electromagnetic wave emission by the transient electron drift response is found to be more effective at 300 K than at low temperatures. Contrary to it, low temperatures are favourable for creating the LO phonon band population inversion with respect to the acoustic one. Phonon band population inversion can give rise to the stimulated emission of THz photons","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Femtosecond Switching of Electron and Phonon Streams in Gallium Nitride Crystals\",\"authors\":\"R. Brazis, R. Raguotis\",\"doi\":\"10.1109/ICTON.2006.248374\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ensemble Monte Carlo method is employed for the study of electron and phonon system in cubic GaN crystals subjected to femtosecond electric field pulses. Transient response is considered at the lattice temperatures of 15 and 300 K. THz electromagnetic wave emission by the transient electron drift response is found to be more effective at 300 K than at low temperatures. Contrary to it, low temperatures are favourable for creating the LO phonon band population inversion with respect to the acoustic one. Phonon band population inversion can give rise to the stimulated emission of THz photons\",\"PeriodicalId\":208725,\"journal\":{\"name\":\"2006 International Conference on Transparent Optical Networks\",\"volume\":\"18 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-06-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2006 International Conference on Transparent Optical Networks\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICTON.2006.248374\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 International Conference on Transparent Optical Networks","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICTON.2006.248374","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Femtosecond Switching of Electron and Phonon Streams in Gallium Nitride Crystals
Ensemble Monte Carlo method is employed for the study of electron and phonon system in cubic GaN crystals subjected to femtosecond electric field pulses. Transient response is considered at the lattice temperatures of 15 and 300 K. THz electromagnetic wave emission by the transient electron drift response is found to be more effective at 300 K than at low temperatures. Contrary to it, low temperatures are favourable for creating the LO phonon band population inversion with respect to the acoustic one. Phonon band population inversion can give rise to the stimulated emission of THz photons
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