000206322 001__ 206322
000206322 005__ 20180318102617.0
000206322 022__ $$a1077-3118
000206322 02470 $$2ISI$$a000344344700008
000206322 0247_ $$2doi$$a10.1063/1.4898095
000206322 037__ $$aARTICLE
000206322 245__ $$aTerahertz magnetic modulator based on magnetically clustered nanoparticles
000206322 269__ $$a2014
000206322 260__ $$c2014
000206322 336__ $$aJournal Articles
000206322 520__ $$aRandom orientation of liquid-suspended magnetic nanoparticles (Ferrofluids) gives rise to a zero net magnetic orientation. An external magnetic field tends to align these nanoparticles into clusters, leading to a strong linear dichroism on a propagating wave. Using 10 nm-sized Fe3O4, we experimentally realize a polarization-sensitive magnetic modulator operating at terahertz wavelengths. We reached a modulation depth of 66% using a field as low as 35 mT. The proposed concept offers a solution towards fundamental terahertz magnetic modulators.
000206322 700__ $$aShalaby, Mostafa
000206322 700__ $$aPeccianti, Marco
000206322 700__ $$aOzturk, Yavuz
000206322 700__ $$aAl-Naib, Ibraheem
000206322 700__ $$0244705$$aHauri, Christoph P.$$g204280
000206322 700__ $$aMorandotti, Roberto
000206322 773__ $$j105$$k15$$q151108$$tApplied Physics Letters
000206322 909CO $$ooai:infoscience.tind.io:206322$$pSB$$particle
000206322 909C0 $$0252363$$pLPAP$$xU10658
000206322 909C0 $$0252525$$pGR-HAU$$xU12312
000206322 917Z8 $$x204280
000206322 917Z8 $$x148230
000206322 937__ $$aEPFL-ARTICLE-206322
000206322 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000206322 980__ $$aARTICLE