Title :
Time-resolved detection of surface plasmon polaritons with a scanning tunneling microscope
Author :
Keil, U.D. ; Ha, Taehoon ; Jensen, Jesper Rindom ; Hvam, J.M.
Author_Institution :
Mikroelektronik Centret, Lyngby, Denmark
Abstract :
Summary form only given. We present the time-resolved detection of surface plasmon polaritons with an STM. The results indicate that the time resolved signal is due to rectification of coherently superimposed plasmon voltages. The comparison with differential reflectivity measurements shows that the tip itself influences the decay of the plasmon-field coherence. Generation of the measured signal at the tunneling junction offers the possibility to observe ultrafast effects with a spatial resolution determined by the tunneling junction.
Keywords :
high-speed optical techniques; light coherence; polaritons; reflectivity; scanning tunnelling microscopy; surface plasmons; coherently superimposed plasmon voltages; differential reflectivity measurements; measured signal; plasmon-field coherence; scanning tunneling microscope; spatial resolution; surface plasmon polaritons; time resolved signal; time-resolved detection; tunneling junction; ultrafast effects; Bandwidth; Diode lasers; Distributed feedback devices; Frequency; Laser excitation; Microscopy; Plasmons; Probes; Sensor arrays; Tunneling;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.676596
