Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification

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In this letter we report the measurement of the field enhancement at the tip of a scanning tunneling microscope, by means of the detection of the optical rectification current. A field enhancement factor between 1000 and 2000 is obtained for highly oriented pyrolytic graphite and between 300 and 600...

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Autores principales:	Bragas, A.V., Landi, S.M., Martínez, O.E.
Formato:	JOUR
Materias:	Electric fields Gold Graphite Light emission Optical variables measurement Platinum Scanning tunneling microscopy Highly oriented pyrolytic graphite Optical field enhancement Optical rectification Optical voltage Laser optics
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00036951_v72_n17_p2075_Bragas
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00036951_v72_n17_p2075_Bragas
record_format	dspace
spelling	todo:paper_00036951_v72_n17_p2075_Bragas2023-10-03T13:56:34Z Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification Bragas, A.V. Landi, S.M. Martínez, O.E. Electric fields Gold Graphite Light emission Optical variables measurement Platinum Scanning tunneling microscopy Highly oriented pyrolytic graphite Optical field enhancement Optical rectification Optical voltage Laser optics In this letter we report the measurement of the field enhancement at the tip of a scanning tunneling microscope, by means of the detection of the optical rectification current. A field enhancement factor between 1000 and 2000 is obtained for highly oriented pyrolytic graphite and between 300 and 600 for gold. Field enhancement factors found are strongly dependent on the particular tip used. The magnitude of the emitted light at the field enhanced region, calculated from the measured optical voltage, could be easily detected by a simple photodiode. © 1998 American Institute of Physics. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00036951_v72_n17_p2075_Bragas
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Electric fields Gold Graphite Light emission Optical variables measurement Platinum Scanning tunneling microscopy Highly oriented pyrolytic graphite Optical field enhancement Optical rectification Optical voltage Laser optics
spellingShingle	Electric fields Gold Graphite Light emission Optical variables measurement Platinum Scanning tunneling microscopy Highly oriented pyrolytic graphite Optical field enhancement Optical rectification Optical voltage Laser optics Bragas, A.V. Landi, S.M. Martínez, O.E. Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification
topic_facet	Electric fields Gold Graphite Light emission Optical variables measurement Platinum Scanning tunneling microscopy Highly oriented pyrolytic graphite Optical field enhancement Optical rectification Optical voltage Laser optics
description	In this letter we report the measurement of the field enhancement at the tip of a scanning tunneling microscope, by means of the detection of the optical rectification current. A field enhancement factor between 1000 and 2000 is obtained for highly oriented pyrolytic graphite and between 300 and 600 for gold. Field enhancement factors found are strongly dependent on the particular tip used. The magnitude of the emitted light at the field enhanced region, calculated from the measured optical voltage, could be easily detected by a simple photodiode. © 1998 American Institute of Physics.
format	JOUR
author	Bragas, A.V. Landi, S.M. Martínez, O.E.
author_facet	Bragas, A.V. Landi, S.M. Martínez, O.E.
author_sort	Bragas, A.V.
title	Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification
title_short	Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification
title_full	Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification
title_fullStr	Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification
title_full_unstemmed	Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification
title_sort	laser field enhancement at the scanning tunneling microscope junction measured by optical rectification
url	http://hdl.handle.net/20.500.12110/paper_00036951_v72_n17_p2075_Bragas
work_keys_str_mv	AT bragasav laserfieldenhancementatthescanningtunnelingmicroscopejunctionmeasuredbyopticalrectification AT landism laserfieldenhancementatthescanningtunnelingmicroscopejunctionmeasuredbyopticalrectification AT martinezoe laserfieldenhancementatthescanningtunnelingmicroscopejunctionmeasuredbyopticalrectification
_version_	1782029874602442752

Laser field enhancement at the scanning tunneling microscope junction measured by optical rectification

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