Plasmon-induced dual-wavelength operation in a Yb^(3+) laser  

作　　者：Laura Sanchez-Garcia Mariola O.Ramirez Rosa Maria Sole Joan J.Carvajal Francesc Diaz Luisa E.Bausa 

机构地区：[1]Deparment Fisica de Materiales,Instituto Nicolas Cabrera and Condensed Matter Physics Center(IFIMAC),Universidad Autonoma de Madrid,28049 Madrid,Spain [2]Universitat Rovira i Virgili,Departament Quimica Fisica i Inorganica,Fisica i Cristal·lografia de Materials i Nanomaterials(FiCMA-FiCNA)-EMaS,E-43007 Tarragona,Spain

出　　处：《Light(Science & Applications)》2019年第1期1042-1050,共9页光（科学与应用)（英文版）

基　　金：support from the Spanish Government under project MAT2016-76106-R;Comunidad de Madrid under grant S2013/MIT-2740;funding from the Spanish Government under projects MAT2016-75716-C2-1-R(AEI/FEDER,UE);TEC2014-55948-R;Generalitat de Catalunya under project 2017SGR755;grant FPU13/02476 from the Spanish Ministry of Education;financial support from the Spanish Government,through The“Maria de Maeztu”Programme for Units of Excellence in R&D(MDM-2014-0377)”.

摘　　要：Expanding the functionalities of plasmon-assisted lasers is essential for emergent applications in nanoscience and nanotechnology.Here,we report on a novel ability of plasmonic structures to induce dual-wavelength lasing in the near-infrared region in a Yb^(3+) solid-state laser.By means of the effects of disordered plasmonic networks deposited on the surface of a Yb^(3+)-doped nonlinear RTP crystal,room-temperature dual-wavelength lasing,with a frequency difference between the lines in the THz range,is realized.The dual-wavelength laser is produced by the simultaneous activation of two lasing channels,namely,an electronic-and a phonon-terminated laser transition.The latter is enabled by the out-of-plane field components that are generated by the plasmonic structures,which excite specific Raman modes.Additionally,multiline radiation at three different wavelengths is demonstrated in the visible spectral region via two self-frequency conversion processes,which occur in the vicinities of the plasmonic structures.The results demonstrate the potential of plasmonic nanostructures for inducing drastic modifications in the operational mode of a solid-state laser and hold promise for applications in a variety of fields,including multiplexing,precise spectroscopies,and THz radiation generation via a simple and cost-effective procedure.

关 键 词：LASER LASING DUAL 

分 类 号：TN2[电子电信—物理电子学]