[1] Diddams S A[J]. J. Opt. Soc. Am. B, 27, B51(2010).
[2] Udem T, Holzwarth R, Hänsch T W[J]. Nature, 416, 233(2002).
[3] Schliesser A, Picqué N, Hänsch T W[J]. Nat. Photon., 6, 440(2012).
[4] Füser H, Bieler M[J]. J. Infrared Millim. Terahertz Waves, 35, 585(2014).
[7] Beha K, Cole D C, Del’Haye P, Coillet A, Diddams S A, Papp S B[J]. Optica, 4, 406(2017).
[8] Kourogi M, Nakagawa K i, Ohtsu M[J]. IEEE J. Quantum Electron., 29, 2693(1993).
[10] Wang C, Zhang M, Yu M, Zhu R, Hu H, Loncar M[J]. Nat. Commun., 10, 978(2019).
[14] Adler F, Cossel K, J Thorpe M, Hartl I, Fermann M, Ye J[J]. Opt. Lett., 34, 1330(2009).
[15] Scalari G, Faist J, Picqué N[J]. Appl. Phys. Lett., 114, 150401(2019).
[16] Jun Y, Schnatz H, Hollberg L W[J]. IEEE J. Sel. Top. Quantum Electron., 9, 1041(2003).
[17] Wang Y, Soskind M G, Wang W, Wysocki G[J]. Appl. Phys. Lett., 104, 031114(2014).
[18] Kumar S[J]. IEEE J. Sel. Top. Quantum Electron., 17, 38(2011).
[19] Siegel P[J]. IEEE Trans. Microw. Theory Tech., 50, 910(2002).
[20] Ferguson B, Zhang X[J]. Nat. Mater., 1, 26(2002).
[21] Cao J[J]. Phys. Rev. Lett., 91, 237401(2003).
[22] Tonouchi M[J]. Nat. Photon., 1, 97(2007).
[24] Carr G, Martin M, McKinney W, Jordan K, Neil G, Williams G[J]. Nature, 420, 153(2002).
[25] Woolard D L, Brown R, Pepper M, Kemp M[J]. Proc. IEEE, 93, 1722(2005).
[27] Kawase K, Ogawa Y, Yuuki W, Inoue H[J]. Opt. Express, 11, 2549(2003).
[28] Chen J, Chen Y, Zhao H, Bastiaans G, Zhang X C[J]. Opt. Express, 15, 12060(2007).
[29] Kawase K, Shibuya T, Hayashi S i, Suizu K[J]. C. R. Physique, 11, 510(2010).
[30] Fischer B, Walther M, Jepsen P[J]. Phys. Med. Biol., 47, 3807(2002).
[31] Siegel P[J]. IEEE Trans. Microw. Theory Tech., 52, 2438(2004).
[32] Castro-Camus E, Johnston M B[J]. Chem. Phys. Lett., 455, 289(2008).
[33] Kleine-Ostmann T, Pierz K, Hein G, Dawson P, Koch M[J]. Electron. Lett., 40, 124(2004).
[36] Burford N M, El-Shenawee M O[J]. Opt. Eng., 56, 010901(2017).
[38] Yasui T, Kabetani Y, Saneyoshi E, Yokoyama S, Araki T[J]. Appl. Phys. Lett., 88, 241104(2006).
[42] Danylov A, Erickson N, Light A, Waldman J[J]. Opt. Lett., 40, 5090(2015).
[43] Williams B S[J]. Nat. Photon., 1, 517(2007).
[46] Gmachl C, Sivco D, Colombelli R, Capasso F, Cho A[J]. Nature, 415, 883(2002).
[49] Villares G, Faist J[J]. Opt. Express, 23, 1651(2015).
[50] Zhou K, Li H, Wan W J, Li Z P, Liao X Y, Cao J C[J]. Appl. Phys. Lett., 114, 191106(2019).
[51] Li H, Cao J, T. Lu J[J]. J. Appl. Phys., 103, 103113(2008).
[52] Burghoff D, Yang Y, Hayton D J, Gao J R, Reno J L, Hu Q[J]. Opt. Express, 23, 1190(2015).
[53] Cappelli F, Villares G, Riedi S, Faist J[J]. Optica, 2, 836(2015).
[58] Rösch M, Scalari G, Beck M, Faist J[J]. Nat. Photon., 9, 42(2014).
[59] Williams B S, Kumar S, Callebaut H, Hu Q, Reno J L[J]. Appl. Phys. Lett., 83, 2124(2003).
[62] Hillbrand J, Jouy P, Beck M, Faist J[J]. Opt. Lett., 43, 1746(2018).
[63] Yang Y, Burghoff D, Reno J, Hu Q[J]. Opt. Lett., 42, 3888(2017).
[66] Faist J, Beck M, Aellen T, Gini E[J]. Appl. Phys. Lett., 78, 147(2001).
[68] Wienold M, Schrottke L, Giehler M, Hey R, Grahn H T[J]. J. Appl. Phys., 109, 073112(2011).
[70] Wan W J, Li H, Zhou T, Cao J C[J]. Sci. Rep., 7, 44109(2017).
[72] Wienold M, Röben B, Schrottke L, Grahn H T[J]. Opt. Express, 22, 30410(2014).
[73] Coldren L A, Miller B I, Iga K, Rentschler J A[J]. Appl. Phys. Lett., 38, 315(1981).
[74] Tsang W T, Olsson N A, Logan R A[J]. Electron. Lett., 19, 488(1983).
[75] Coldren L, Koch T[J]. IEEE J. Quantum Electron., 20, 659(1984).
[76] Ebeling K J, Coldren L A, Miller B I, Rentschler J A[J]. Appl. Phys. Lett., 42, 6(1983).
[77] Li Z, Li H, Wan W, Zhou K, Cao J, Chang G, Xu G[J]. Opt. Express, 26, 32675(2018).
[80] Auston D H, Cheung K P[J]. J. Opt. Soc. Am. B, 2, 606(1985).
[83] Han P Y, Tani M, Usami M, Kono S, Kersting R, Zhang X C[J]. J. Appl. Phys., 89, 2357(2001).
[89] Yang Y, Burghoff D, Hayton D J, Gao J R, Reno J L, Hu Q[J]. Optica, 3, 499(2016).