Title :
Theory of femtosecond light pulse propagation through near-field fiber probes
Author :
Muller, Rudolf ; Lienau, Christoph
Author_Institution :
Max-Born-Inst. fur Nichtlinear Opt. & Kurzzeitspektroskopie, Berlin, Germany
Abstract :
Summary form only given.The combination of near-field microscopy and femtosecond spectroscopy attracts considerable interest as it opens up a new direction for studying spatio-temporal dynamics in molecular and semiconductor nanostructures on nanometer length scales. Subwavelength spatial resolution is achieved by transmitting femtosecond light pulses through near-field fiber probes. Yet, little is known about the transmission properties of those probes for ultrashort light pulses. We present for the first time a theoretical study of the propagation of 10 fs light pulses through uncoated and metal-coated fiber probes. Our simulations are based on a two-dimensional finite-difference time domain solution of Maxwell´s equations on a grid.
Keywords :
Maxwell equations; finite difference time-domain analysis; high-speed optical techniques; light propagation; optical microscopes; time resolved spectroscopy; Maxwell´s equations; femtosecond light pulse propagation; femtosecond light pulses; femtosecond spectroscopy; fibre optic sensors; fs light pulse propagation; metal-coated fiber probes; nanometer length scales; near-field fiber probes; near-field microscopy; semiconductor nanostructures; spatio-temporal dynamics; subwavelength spatial resolution; two-dimensional finite-difference time domain solution; ultrashort light pulses; uncoated fiber probes; Continuous wavelet transforms; Glass; Large Hadron Collider; Optical fiber theory; Optical propagation; Optical waveguides; Optimized production technology; Probes; Telescopes; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.907142
