Ultra-high temporal and spatial resolutions using femtosecond and attosecond pulses

S. Kukhlevsky, G. Nyitray

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We show that ultra-high temporal Δt and spatial Δx optical resolutions can be provided simultaneously only by using a pulse with an ultra-short central wavelength of the wavepacket or/and decreasing the distance between the light source and sample. Such behaviour is the result of the existence of a cut-off frequency ωco in the Fourier time expansion of an electromagnetic wavepacket when we consider its transmission through an aperture. The phenomena could be important for achievement of femtosecond or attosecond temporal resolutions together with confinement of light to nanometre-scale transverse dimensions in near-field scanning optical microscopy and spectroscopy.

Original languageEnglish
Pages (from-to)271-273
Number of pages3
JournalJournal of Optics A: Pure and Applied Optics
Volume4
Issue number3
DOIs
Publication statusPublished - May 2002

Fingerprint

Near field scanning optical microscopy
Cutoff frequency
temporal resolution
Light sources
near fields
light sources
cut-off
spatial resolution
apertures
electromagnetism
microscopy
Wavelength
expansion
scanning
high resolution
pulses
wavelengths
spectroscopy
Optical spectroscopy

Keywords

  • Near-field scanning
  • Optical microscopes
  • Ultrafast processes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Ultra-high temporal and spatial resolutions using femtosecond and attosecond pulses. / Kukhlevsky, S.; Nyitray, G.

In: Journal of Optics A: Pure and Applied Optics, Vol. 4, No. 3, 05.2002, p. 271-273.

Research output: Contribution to journalArticle

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