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An electrically pumped surface-emitting semiconductor green laser.
Ra, Yong-Ho; Rashid, Roksana Tonny; Liu, Xianhe; Sadaf, Sharif Md; Mashooq, Kishwar; Mi, Zetian.
Afiliación
  • Ra YH; Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 0E9, Canada.
  • Rashid RT; Optic and Electronic Component Material Center, Korea Institute of Ceramic Engineering and Technology, Jinju, Republic of Korea.
  • Liu X; Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 0E9, Canada.
  • Sadaf SM; Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 0E9, Canada.
  • Mashooq K; Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, USA.
  • Mi Z; Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 0E9, Canada.
Sci Adv ; 6(1): eaav7523, 2020 01.
Article en En | MEDLINE | ID: mdl-31921999
Surface-emitting semiconductor lasers have been widely used in data communications, sensing, and recently in Face ID and augmented reality glasses. Here, we report the first achievement of an all-epitaxial, distributed Bragg reflector (DBR)-free electrically injected surface-emitting green laser by exploiting the photonic band edge modes formed in dislocation-free gallium nitride nanocrystal arrays, instead of using conventional DBRs. The device operates at ~523 nm and exhibits a threshold current of ~400 A/cm2, which is over one order of magnitude lower compared to previously reported blue laser diodes. Our studies open a new paradigm for developing low-threshold surface-emitting laser diodes from the ultraviolet to the deep visible (~200 to 600 nm), wherein the device performance is no longer limited by the lack of high-quality DBRs, large lattice mismatch, and substrate availability.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2020 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2020 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Estados Unidos