{"ok":true,"nota":{"id":"51ef84fb4f090a89","slug":"logran-que-los-atomos-de-luz-de-ciertos-puntos-cuanticos-de-nitruro-de-51ef84","titulo":"Logran que los átomos de luz de ciertos puntos cuánticos de nitruro de galio mantengan su orientación aun con ","resumen":"Investigadores estudiaron nanohilos con puntos cuánticos de nitruro de galio, que emiten luz al ser iluminados con láser. Midieron que la orientación de la luz emitida casi no cambia con la temperatura.","fuente":"hal","fuenteNombre":"HAL · Ciencia abierta","color":"#b06000","autor":"Balocchi, Andrea, Renard, J., Nguyen, C.T.","url":"https://hal.science/hal-00999496","imagen":"/hoy/portada/51ef84fb4f090a89","tema":"ciencia","subtemas":["puntos cuanticos","nanohilos","optica cuantica","nitruro de galio"],"entidades":["HAL"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-23T00:00:00.000Z","indexTs":"2026-10-23T12:03:18.527Z","hash":"44096a879758a9d2153c60d5b1ff781065c2790c2f61466665fc4abb131774ef","tsa":{"time":"Oct 23 12:04:18 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Para que estos materiales sirvan en dispositivos ópticos, la luz tiene que conservar sus propiedades aunque el equipo se caliente. El trabajo muestra que en estos nanohilos eso ocurre en un rango amplio de temperaturas. Todavía falta llevarlo a aparatos reales, y el estudio se hizo en condiciones de laboratorio con equipos muy especializados.","quienFirma":"HAL, plataforma francesa de ciencia abierta","confianza":"revisado","consulta":null},"sello":{"hash":"44096a879758a9d2153c60d5b1ff781065c2790c2f61466665fc4abb131774ef","sello":"1e95bc9d2828f8646508af0c7ac3af4967ab43c3b7df547e18678f5f8cb14baf","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6577534,"aleatorio":"c9e07c4a7baaade0e8acc56f64536cbb18d3ad1e3d8c1ae5596009491ca1c705","tiempo":"2026-10-23T12:04:00.000Z"},"nist":{"cadena":2,"pulso":1995961,"salida":"F41B5D0D554B9AA93D86596521336D547B043E4F52A3C280F10F60EAE511ED1743D3E56670D4E53EB431734AC5B1B8CB5DCF96D1DB26F562D058604979415129","tiempo":"2026-10-23T12:03:00.000Z"},"noAntes":"2026-10-23T12:04:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 23 12:04:18 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Temperature-insensitive optical alignment of the exciton in nanowire-embedded GaN quantum dots","descripcion":"We report on the exciton spin dynamics of nanowire-embedded GaN/AlN quantum dots (QDs) investigated by time-resolved photoluminescence spectroscopy. Under a linearly polarized quasiresonant excitation, we evidence the quenching of the exciton spin relaxation and a temperature-insensitive degree of the exciton linear polarization, demonstrating the robustness of the optical alignment of the exciton spin in these nanowire-embedded QDs. A detailed examination of the luminescence polarization angular dependence shows orthogonal linear exciton eigenstates","pubDate":"2026-10-23","url":"https://hal.science/hal-00999496"},"indexado":"2026-10-23T12:03:18.527Z"}}