Journal ArticleDOI
Thermal expansion of scanning tunneling microscopy tips under laser illumination
TLDR
In this paper, the periodic thermal expansion of scanning tunneling microscopy (STM) tips arising under irradiation with power-modulated laser light has been investigated, and the results are also interpreted in terms of simplified analytical expressions.Abstract:
The periodic thermal expansion of scanning tunneling microscopy (STM) tips arising under irradiation with power-modulated laser light has been investigated. The expansion was determined by comparison with a calibrated piezomotion measured in an STM, which was operated in the constant-current mode, and instrumental effects were corrected for. The experimental data concerning the frequency response of the thermal expansion for various geometries of the tip and for different positions of the laser focus are compared with theoretical results which were derived from a numerical solution of the equation of heat conduction. A very good agreement is found. The results are also interpreted in terms of simplified analytical expressions. Furthermore, the theoretical data are used to derive the response of the tip to fast transients of the light power as in the case of pulsed irradiation.read more
Citations
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Journal ArticleDOI
Photoassisted scanning tunneling microscopy
TL;DR: A review of light-induced effects in tunneling microscopy can be found in this article, where the authors discuss thermal effects, nonlinear effects, field enhancement at the STM tip, various effects on semiconductor surfaces, excitation of surface plasmons, detection of photoelectrons, spin-polarized tunneling, local optical spectroscopy, the use of ultrashort laser pulses for time-resolved STM, and the combination of STM and scanning near-field optical microscopy.
Journal ArticleDOI
Strong-field nano-optics
Péter Dombi,Zsuzsanna Pápa,Jan Vogelsang,Sergey V. Yalunin,Murat Sivis,Georg Herink,Sascha Schäfer,Petra Groß,Claus Ropers,Christoph Lienau +9 more
TL;DR: In the strong-field regime, the amplitude and phase of the external electromagnetic field can exceed or exceed the field strengths that bind the electrons inside the medium as mentioned in this paper. But this is not the case in the non-perturbative regime.
Journal ArticleDOI
Femtosecond laser assisted scanning tunneling microscopy
TL;DR: In this paper, a laser system that produces ultrashort laser pulses is combined with an ultrahigh vacuum scanning tunneling microscope to achieve atomic resolution under pulsed laser excitation of the tunneling junction.
Journal ArticleDOI
Optical near-field absorption at a metal tip far from plasmonic resonance
TL;DR: In this paper, the wavelength and the polarization dependence of the absorption of a subwavelength tip illuminated by an ultrashort laser pulse using laser-assisted atom-probe tomography were investigated.
Journal ArticleDOI
Imaging a GaAlAs laser diode in operation using apertureless scanning near-field optical microscopy
TL;DR: In this paper, the authors reported the local study of an operating double hetero-junction GaAs/GaAlAs laser diode by apertureless Scanning Near-field Optical Microscopy (SNOM) using a tungsten tip vibrating perpendicularly to the emitting surface.
References
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Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Book
Conduction of Heat in Solids
H. S. Carslaw,John Conrad Jaeger +1 more
TL;DR: In this paper, a classic account describes the known exact solutions of problems of heat flow, with detailed discussion of all the most important boundary value problems, including boundary value maximization.
Journal ArticleDOI
Nanostructure fabrication using laser field enhancement in the near field of a scanning tunneling microscope tip
J. Jersch,K. Dickmann +1 more
TL;DR: In this article, the scanning tunneling microscope (STM) was combined with laser excitation and was used for modification of metal surfaces in air, which enables processing of structures with a lateral resolution of approximately 10 nm.
Journal ArticleDOI
Atomically resolved carrier recombination at Si(111)-7 x 7 surfaces.
Hamers Rj,Markert K +1 more
TL;DR: Etude du potentiel local cree par the presence of paires electron-trou photoexcitees a la surface propre et partiellement oxydee du silicium, a l'aide d'un microscope.
Journal ArticleDOI
Laser-driven scanning tunneling microscope
TL;DR: In this paper, a scanning tunneling microscope (STM) with laser radiation coupled into the tip of the tunneling junction is demonstrated, where the dc current generated by rectifying the laser light and the difference-frequency signal produced in the STM by two laser beams is used to obtain atomic-resolution surface images of graphite, as well as to control the tip-sample distance.
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