000191145 001__ 191145
000191145 005__ 20181203023339.0
000191145 0247_ $$2doi$$a10.1002/lpor.201300035
000191145 022__ $$a1863-8880
000191145 02470 $$2ISI$$a000326093800003
000191145 037__ $$aARTICLE
000191145 245__ $$aContinuous-wave vertically emitting photonic crystal terahertz laser
000191145 260__ $$aWeinheim$$bWiley-VCH Verlag Berlin$$c2013
000191145 269__ $$a2013
000191145 300__ $$a6
000191145 336__ $$aJournal Articles
000191145 520__ $$aCompact semiconductor light sources with high performance continuous-wave (CW) and single mode operation are highly demanded for many applications in the terahertz (THz) frequency range. Distributed feedback (DFB) and photonic crystal (PhC) quantum cascade (QC) lasers are amongst the leading candidates in this field. Absorbing boundary condition is a commonly used method to control the optical performance of a laser in double-metal confinement. However, this approach increases the total loss in the device and results in a large threshold current density, limiting the CW maximum output power and operating temperature. In this letter, a robust surface emitting continuous wave terahertz QC laser is realized in a two-dimensional PhC structure by a second order Bragg grating extractor that simultaneously provides the boundary condition necessary for mode selection. This results in a 3.12 THz single mode CW operation with a 3 mW output power and a maximum operation temperature (T-max) of 100 K. Also, a highly collimated far-field pattern is demonstrated, which is an important step towards real world applications.
000191145 6531_ $$aTerahertz
000191145 6531_ $$aquantum cascade laser
000191145 6531_ $$aphotonic crystal
000191145 6531_ $$asurface emission
000191145 6531_ $$acontinuous-wave operation
000191145 700__ $$0242015$$aDiao, Zhaolu$$g192344$$uEcole Polytech Fed Lausanne, Inst Phys Matiere Condensee, CH-1015 Lausanne, Switzerland
000191145 700__ $$aBonzon, Christopher
000191145 700__ $$aScalari, Giacomo
000191145 700__ $$aBeck, Mattias
000191145 700__ $$aFaist, Jerome
000191145 700__ $$0240344$$aHoudre, Romuald$$g105419$$uEcole Polytech Fed Lausanne, Inst Phys Matiere Condensee, CH-1015 Lausanne, Switzerland
000191145 773__ $$j7$$k5$$qL45-L50$$tLaser & Photonics Reviews
000191145 909C0 $$0252441$$pICMP$$xU10138
000191145 909C0 $$0253378$$pSCI-SB-RH$$xU13466
000191145 909CO $$ooai:infoscience.tind.io:191145$$pSB$$particle
000191145 917Z8 $$x105419
000191145 937__ $$aEPFL-ARTICLE-191145
000191145 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000191145 980__ $$aARTICLE