000202403 001__ 202403
000202403 005__ 20181203023632.0
000202403 0247_ $$2doi$$a10.1364/Oe.22.021069
000202403 022__ $$a1094-4087
000202403 02470 $$2ISI$$a000340717300132
000202403 037__ $$aARTICLE
000202403 245__ $$aFirst demonstration of plasmonic GaN quantum cascade detectors with enhanced efficiency at normal incidence
000202403 260__ $$aWashington$$bOptical Soc Amer$$c2014
000202403 269__ $$a2014
000202403 300__ $$a10
000202403 336__ $$aJournal Articles
000202403 520__ $$aWe have designed, fabricated and measured the first plasmon-assisted normal incidence GaN/AlN quantum cascade detector (QCD) making use of the surface plasmon resonance of a two-dimensional nanohole Au array integrated on top of the detector absorption region. The spectral response of the detector at room temperature is peaked at the plasmon resonance of 1.82 mu m. We show that the presence of the nanohole array induces an absolute enhancement of the responsivity by a factor of similar to 30 over that of the bare device at normal incidence and by a factor of 3 with respect to illumination by the 45 degrees polished side facet. We show that this significant improvement arises from two phenomena, namely, the polarization rotation of the impinging light from tangential to normal induced by the plasmonic structure and from the enhancement of the absorption cross-section per quantum well due to the near-field optical intensity of the plasmonic wave. (C)2014 Optical Society of America
000202403 700__ $$aPesach, Asaf$$uTechnion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel
000202403 700__ $$aSakr, Salam$$uUniv Paris 11, CNRS, Inst Elect Fondamentale, UMR 8622, F-91405 Orsay, France
000202403 700__ $$0244555$$aGiraud, Etienne$$g183897
000202403 700__ $$aSorias, Ofir$$uTechnion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel
000202403 700__ $$aGal, Lior$$uTechnion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel
000202403 700__ $$aTchernycheva, Maria$$uUniv Paris 11, CNRS, Inst Elect Fondamentale, UMR 8622, F-91405 Orsay, France
000202403 700__ $$aOrenstein, Meir$$uTechnion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel
000202403 700__ $$0244550$$aGrandjean, Nicolas$$g161577
000202403 700__ $$aJulien, Francois H.$$uUniv Paris 11, CNRS, Inst Elect Fondamentale, UMR 8622, F-91405 Orsay, France
000202403 700__ $$aBahir, Gad$$uTechnion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel
000202403 773__ $$j22$$k17$$q21069-21078$$tOptics Express
000202403 909C0 $$0252312$$pLASPE$$xU10946
000202403 909CO $$ooai:infoscience.tind.io:202403$$pSB$$particle
000202403 917Z8 $$x161577
000202403 937__ $$aEPFL-ARTICLE-202403
000202403 973__ $$aOTHER$$rREVIEWED$$sPUBLISHED
000202403 980__ $$aARTICLE