?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Near-Field+microscopy+with+phase+sensitive+coherent+detection+employing+quantum+cascade+lasers&rft.creator=Mitrofanov%2C+O&rft.creator=Viti%2C+L&rft.creator=Giordano%2C+MC&rft.creator=Dardanis%2C+E&rft.creator=Ercolani%2C+D&rft.creator=Politano%2C+A&rft.creator=Sorba%2C+L&rft.creator=Vitiello%2C+MS&rft.description=We+demonstrate+a+novel+architecture+for+a+THz+near-field+probe%2C+which+enables+coherent+imaging+with+subwavelength+spatial+resolution+using+THz+quantum+cascade+lasers.+An+InAs+nanowire+acting+as+a+THz+detector+based+on+the+field+effect+transistor+concept+is+integrated+inside+a+subwavelength+input+aperture+of+the+near-field+probe+to+detect+intensity+of+the+THz+field+and+its+phase.+To+determine+the+phase+locally%2C+the+THz+field+is+superimposed+on+the+reference+THz+field+incident+on+the+aperture+of+the+probe+from+the+back+side.+In+this+configuration%2C+the+THz+detector+exhibits+coherent+gain+and+sensitivity+to+the+relative+phase+between+the+local+and+the+reference+THz+fields.&rft.publisher=IEEE&rft.date=2017-10-16&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++2017+42nd+International+Conference+on+Infrared%2C+Millimeter%2C+and+Terahertz+Waves+(IRMMW-THz).++++IEEE%3A+Cancun%2C+Mexico.+(2017)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10113667%2F1%2FIRMMW-THz2017_Exteneded_abstract_accepted.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10113667%2F&rft.rights=open