Publicação
A source of terahertz coherent phonons
| Resumo: | Resonant tunnelling in a double-barrier heterostructure (DBHS) designed in order to produce an intense coherent emission of phonons is studied theoretically. Thisemission is achieved when the energy difference between the first excited level and the ground state in the well is close to the LO-phonon energy. The LO phonons emitted during the electron transition decay into a pair of (fLO and TA) phonons that leave the well in the [111] direction. These secondary TA phonons are coherent and form a beam that we call a SASER (by analogy with ‘laser’). The circulating current and the populations of phonons and electrons in the well are calculated by solving appropriate kinetic equations. Some possible applications of this system are discussed. |
|---|---|
| Autores principais: | Makler, Sergio |
| Outros Autores: | Vasilevskiy, Mikhail; Tuyarot, Diana; Weberszpil, José; Anda, Enrique; Pastawski, Horacio |
| Assunto: | Phonons Douple barrier heterostructure Resonant tunneling Sound generation |
| Ano: | 1998 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867439393046790144 |
|---|---|
| author | Makler, Sergio |
| author2 | Vasilevskiy, Mikhail Tuyarot, Diana Weberszpil, José Anda, Enrique Pastawski, Horacio |
| author2_role | author author author author author |
| author_facet | Makler, Sergio Vasilevskiy, Mikhail Tuyarot, Diana Weberszpil, José Anda, Enrique Pastawski, Horacio |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Makler, Sergio\"},{\"Person.name\":\"Vasilevskiy, Mikhail\"},{\"Person.name\":\"Tuyarot, Diana\"},{\"Person.name\":\"Weberszpil, José\"},{\"Person.name\":\"Anda, Enrique\"},{\"Person.name\":\"Pastawski, Horacio\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Makler, Sergio Vasilevskiy, Mikhail Tuyarot, Diana Weberszpil, José Anda, Enrique Pastawski, Horacio |
| datacite.date.Accepted.fl_str_mv | 1998-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2006-08-23T15:22:25Z |
| datacite.date.embargoed.fl_str_mv | 2006-08-23T15:22:25Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Phonons Douple barrier heterostructure Resonant tunneling Sound generation |
| datacite.titles.title.fl_str_mv | A source of terahertz coherent phonons |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Makler, Sergio Vasilevskiy, Mikhail Tuyarot, Diana Weberszpil, José Anda, Enrique Pastawski, Horacio |
| dc.date.Accepted.fl_str_mv | 1998-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2006-08-23T15:22:25Z |
| dc.date.embargoed.fl_str_mv | 2006-08-23T15:22:25Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/5462 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | AIP Publishing |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Phonons Douple barrier heterostructure Resonant tunneling Sound generation |
| dc.title.fl_str_mv | A source of terahertz coherent phonons |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Resonant tunnelling in a double-barrier heterostructure (DBHS) designed in order to produce an intense coherent emission of phonons is studied theoretically. Thisemission is achieved when the energy difference between the first excited level and the ground state in the well is close to the LO-phonon energy. The LO phonons emitted during the electron transition decay into a pair of (fLO and TA) phonons that leave the well in the [111] direction. These secondary TA phonons are coherent and form a beam that we call a SASER (by analogy with ‘laser’). The circulating current and the populations of phonons and electrons in the well are calculated by solving appropriate kinetic equations. Some possible applications of this system are discussed. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/f51a9207-5bc7-427a-9b5a-1fecd12d7f10/download |
| id | rum_bf634b3ba9eebcbb98df99bd216cb4a2 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/5462 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/5462 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Makler, Sergio Vasilevskiy, Mikhail Tuyarot, Diana Weberszpil, José Anda, Enrique Pastawski, Horacio |
| publishDate | 1998 |
| publisher.none.fl_str_mv | AIP Publishing |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engAIP PublishingengResonant tunnelling in a double-barrier heterostructure (DBHS) designed in order to produce an intense coherent emission of phonons is studied theoretically. Thisemission is achieved when the energy difference between the first excited level and the ground state in the well is close to the LO-phonon energy. The LO phonons emitted during the electron transition decay into a pair of (fLO and TA) phonons that leave the well in the [111] direction. These secondary TA phonons are coherent and form a beam that we call a SASER (by analogy with ‘laser’). The circulating current and the populations of phonons and electrons in the well are calculated by solving appropriate kinetic equations. Some possible applications of this system are discussed.application/pdfengA source of terahertz coherent phononsMakler, SergioVasilevskiy, MikhailTuyarot, DianaWeberszpil, JoséAnda, EnriquePastawski, HoracioHostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptCITATION"Journal of physics : condensed matter" ISSN 0953-8984. 10:26 (1998) 5905-5921.ISSNIsPartOf0953-8984DOIIsPartOf10.1088/0953-8984/10/26/0172006-08-23T15:22:25Z19981998-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/5462http://purl.org/coar/access_right/c_abf2open accessPhononsDouple barrier heterostructureResonant tunnelingSound generation227265 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/f51a9207-5bc7-427a-9b5a-1fecd12d7f10/download |
| spellingShingle | A source of terahertz coherent phonons Makler, Sergio Phonons Douple barrier heterostructure Resonant tunneling Sound generation |
| status | SINGLETON |
| subject.fl_str_mv | Phonons Douple barrier heterostructure Resonant tunneling Sound generation |
| title | A source of terahertz coherent phonons |
| title_full | A source of terahertz coherent phonons |
| title_fullStr | A source of terahertz coherent phonons |
| title_full_unstemmed | A source of terahertz coherent phonons |
| title_short | A source of terahertz coherent phonons |
| title_sort | A source of terahertz coherent phonons |
| topic | Phonons Douple barrier heterostructure Resonant tunneling Sound generation |
| topic_facet | Phonons Douple barrier heterostructure Resonant tunneling Sound generation |
| url | https://hdl.handle.net/1822/5462 |
| visible | 1 |