[1] KellerU., Nature424, 831 (2003).

[2] SunZ. P.MartinezA.WangF., Nat. Photon.10, 227 (2016).NPAHBY1749-4885

[3] SovaR. M.KimC.-S.KangJ. U., IEEE Photon. Technol. Lett.14, 287 (2002).IPTLEL1041-1135

[4] WalshB. M., Laser. Phys.20, 622 (2010).

[5] LuoZ. Q.ZhouM.WengJ.HuangG. M.XuH. Y.YeC. C.CaiZ. P., Opt. Lett.35, 3709 (2010).OPLEDP0146-9592

[6] LiW. S.DuT. J.LanJ. L.GuoC. L.ChengY. J.XuH. Y.ZhuC. H.WangF. Q.LuoZ. Q.CaiZ. P., Opt. Lett.42, 671 (2017).OPLEDP0146-9592

[7] DuT.LuoZ.YangR.HuangY.RuanQ.CaiZ.XuH., Opt. Lett.42, 462 (2017).OPLEDP0146-9592

[8] AhmadH.SalimM. A. M.AliZ. A.IsmailM. F.ThambiratnamK.LatifA. A.NayanN.HarunS. W., Chin. Opt. Lett.14, 091403 (2016).CJOEE31671-7694

[9] LinH. F.ZhuW. Z.XiongF. B.RuanJ. J., App. Opt.56, 948 (2017).

[10] YangH.FengX.WangQ.HuangH.ChenW.WeeA. T.JiW., Nano. Lett.11, 2622 (2011).NALEFD1530-6984

[11] SunZ.HasanT.TorrisiF.PopaD.PriviteraG.WangF.BonaccorsoF.BaskoD. M.FerrariA. C., ACS Nano.4, 803 (2010).ANCAC31936-0851

[12] FujimotoY.SuzukiT.OchanteR. A. M.HirayamaT.MurakamiM.ShiragaH.YoshidaM.IshiiO.YamazakiM., Electron. Lett.50, 1470 (2014).ELLEAK0013-5194

[13] SongY. F.LiL.TangD. Y.ShenD. Y., Laser Phys. Lett.10, 125103 (2013).1612-2011

[14] ZhangH.TangD. Y.KnizeR. J.ZhaoL. M.BaoQ. L., Appl. Phys. Lett.96, 111112 (2010).APPLAB0003-6951

[15] SongY. F.LiL.ZhangH.ShenD. Y.TangD. Y.LohK. P., Opt. Express.21, 10010 (2013).OPEXFF1094-4087

[16] SongY. F.ZhangH.TangD. Y.ShenD. Y., Opt. Express20, 27283 (2012).OPEXFF1094-4087

[17] ChenB.ZhangX.WuK.WangH.WangJ.ChenJ., Opt. Express23, 26723 (2015).OPEXFF1094-4087

[18] LuoZ. Q.HuangY. Z.WengJ.ChengH. H.LinZ. Q.XuB.CaiZ. P.XuH. Y., Opt. Express21, 29516 (2013).OPEXFF1094-4087

[19] WuD. D.CaiZ. P.ZhongY. L.PengJ.WengJ.LuoZ. Q.ChenN.XuH. Y., IEEE Photon. Technol. Lett.27, 379 (2015).IPTLEL1041-1135

[20] HuangY.LuoZ.LiY.ZhongM.XuB.CheK.XuH.CaiZ.PengJ.WengJ., Opt. Express22, 25258 (2014).OPEXFF1094-4087

[21] ZhangH. J.LiuC. X.QiX. L.DaiX.FangZ.ZhangS. C., Nat. Phys.5, 438 (2009).NPAHAX1745-2473

[22] LiW. S.PengJ.ZhongY. L.WuD. D.LinH. Y.ChengY. J.LuoZ. Q.WengJ.XuH. Y.CaiZ. P., Opt. Mater. Express6, 2031 (2016).

[23] LuB.YuanL.QiX.HouL.SunB.FuP.BaiJ., Chin. Opt. Lett.14, 071404 (2016).CJOEE31671-7694

[24] ZhangH.LuS. B.ZhengJ.DuJ.WenS. C.TangD. Y.LohK. P., Opt. Express22, 7249 (2014).OPEXFF1094-4087

[25] ZouX.LengY.LiY.FengY.ZhangP.HangY.WangJ., Chin. Opt. Lett.13, 081405 (2015).CJOEE31671-7694

[26] ZhangR.ZhangY.YuH.ZhangH.YangR.YangB.LiuZ.WangJ., arXiv 1505, 05992 (2015).

[27] LuoZ.LiuM.GuoZ.JiangX.LuoA.ZhaoC.YuX.XuW.ZhangH., Opt. Express23, 20030 (2015).OPEXFF1094-4087

[28] QinZ. P.XieG. Q.ZhangH.ZhaoC. J.YuanP.WenS. C.QianL. J., Opt. Express23, 24713 (2015).OPEXFF1094-4087

[29] LinH. Y.LiW. S.LanJ. L.GuanX. F.XuH. Y.CaiZ. P., App. Opt.56, 802 (2017).

[30] GuoB.YaoY.YanP. G.XuK.LiuJ. J.WangS. G.LiY., IEEE Photon. Technol. Lett.28, 323 (2016).IPTLEL1041-1135

[31] XuB.WangY.PengJ.LuoZ. Q.XuH. Y.CaiZ. P.WengJ., Opt. Express23, 7674 (2015).OPEXFF1094-4087

[32] ColemanJ. N.LotyaM.O’NeillA.BerginS. D.KingP. J.KhanU.YoungK.GaucherA.DeS.SmithR. J.ShvetsI. V.AroraS. K.StantonG.KimH.-Y.LeeK.KimG. T.DuesbergG. S.HallamT.BolandJ. J.WangJ. J.DoneganJ. F.GrunlanJ. C.MoriartyG.ShmeliovA.NichollsR. J.PerkinsJ. M.GrievesonE. M.TheuwissenK.McCombD. W.NellistP. D.NicolosiV., Science331, 568 (2011).SCIEAS0036-8075

[33] ZhangH.LiuC. X.QiX. L.DaiX.FangZ.ZhangS. C., Nat. Phys.5, 438 (2009).NPAHAX1745-2473

[34] LuoZ. Q.LC.HuangY. Z.WuD. D.WuJ. Y.XuH. Y.CaiZ. P.LinZ. Q.SunL. P.WengJ., IEEE J. Sel. Top. Quantum Electron.20, 0902708 (2014).IJSQEN1077-260X

[35] BraunB.KartnerF. X.ZhangG.MoserM.KellerU., Opt. Lett.22, 381 (1997).OPLEDP0146-9592

[36] KelleherE. J. R.TraversJ. C.SunZ. P.RozhinA. G.FerrariA. C.PopovS. V.TaylorJ. R., Appl. Phys. Lett.95, 111108 (2009).APPLAB0003-6951

[37] LiuJ.WuS.YangQ. H.WangP., Opt. Lett.36, 4008 (2011).OPLEDP0146-9592