Absence of the enhanced intra-4f transition cross section at 1.5 μm of Er3+ in Si-rich SiO2

Mertens, H.; Polman, A.; Aarts, I. M. P.; Kessels, W. M. M.; van de Sanden, M. C. M.
June 2005
Applied Physics Letters;6/13/2005, Vol. 86 Issue 24, p241109
Academic Journal
We present measurements of the optical absorption cross section of the 4I15/2→4I13/2 transition at 1.5 μm of Er3+ ions embedded in SiO2 and Si-rich oxide, using cavity ringdown spectroscopy on thin films. The peak absorption cross section for Er3+ embedded in Si-rich oxide (10 at. % excess Si) was found to be (8±2)×10-21 cm2 at 1536 nm, similar to typical values for Er embedded in SiO2. The data imply that the silicon nanoclusters incorporated in Si-rich oxide do not enhance the peak cross section of the Er3+4I15/2-4I13/2 transition by 1-2 orders of magnitude, contrary to what has been reported in earlier work.


Related Articles

  • Cavity ring-down spectroscopy for quantitative absorption measurements. Zalicki, Piotr; Zare, Richard N. // Journal of Chemical Physics;2/15/1995, Vol. 102 Issue 7, p2708 

    We examine under what conditions cavity ring-down spectroscopy (CRDS) can be used for quantitative diagnostics of molecular species. We show that CRDS is appropriate for diagnostics of species whose absorption features are wider than the spacing between longitudinal modes of the optical cavity....

  • Response of a ring-down cavity to an arbitrary excitation. Hodges, Joseph T.; Looney, J. Patrick; van Zee, Roger D. // Journal of Chemical Physics;12/15/1996, Vol. 105 Issue 23, p10278 

    An eigenmode analysis of the response of an empty ring-down cavity to an arbitrary laser excitation is presented. By explicitly taking into account both the mode structure of the ring-down cavity and the spectral content of the laser pulse, it is found that the complicated ring-down signals...

  • Integrated absorption intensity and Einstein coefficients for the O[sub 2]... Newman, Stuart M.; Lane, Ian C.; Orr-Ewing, Andrew J.; Newnham, David A.; Ballard, John // Journal of Chemical Physics;6/8/1999, Vol. 110 Issue 22, p10749 

    Measures the quantitative absorption spectra and determines the integrated absorption intensity band by the use of cavity ringdown spectroscopy and high-resolution, long-path Fourier transform (FT) spectroscopy. Conversion of the raw data from the FT spectrometer to transmittance spectra;...

  • Cavity ring-down spectroscopy of transient O[sub 2] -O[sub 2] dimers. Tiedje, H. F.; DeMille, S.; MacArthur, L.; Brooks, R. L. // Canadian Journal of Physics;Apr2001, Vol. 79 Issue 4, p773 

    Cavity ring-down spectroscopy has been used to obtain the spectra of transient (O[sub 2] )[sub 2] at 577 and 629 nm, at room temperature and pressures ranging from about 0.25 to 10.0 atm. A selection of these spectra are displayed showing the overlapping monomer and dimer features....

  • Spectral Kinetic Properties and Lasing Characteristics of Diode-Pumped Cr2+:ZnSe Single Crystals. Kisel', V. &É.; Shcherbitsky, V. G.; Kuleshov, N. V.; Konstantinov, V. I.; Levchenko, V. I.; Sorokin, E.; Sorokina, I. // Optics & Spectroscopy;Oct2005, Vol. 99 Issue 4, p663 

    The temperature and concentration quenching of the luminescence of Cr2+ ions in Cr:ZnSe crystals is experimentally investigated and the radiative lifetime of the upper lasing level is determined. The values of the cross sections of absorption from the ground state of Cr2+ ions in Cr:ZnSe...

  • High-resolution cavity leak-out absorption spectroscopy in the 10-�m region. M�rtz, M.; Frech, B.; Urban, W. // Applied Physics B: Lasers & Optics;1999, Vol. 68 Issue 2, p243 

    Abstract. We have examined a novel approach to obtain molecular absorption spectra with high resolution and high sensitivity in the 10-micro m region. An external high-finesse cavity is excited on a single fundamental mode with a narrow-linewidth CO[sub 2] laser. Alter excitation, the laser...

  • On the Application of Cavity Ringdown Spectroscopy to Measurements of Line Shapes and Continuum Absorption. Cormier, John G.; Hodges, Joseph T.; Drummond, James R. // AIP Conference Proceedings;2002, Vol. 645 Issue 1, p401 

    Cavity ringdown spectroscopy (CRDS) is a highly sensitive spectroscopic technique that has been successfully applied to problems such as trace gas detection and the observation of weak spectra. Despite possessing several intrinsic advantages over other techniques, CRDS has not yet been widely...

  • Cavity ring down spectroscopy on radicals in a supersonic slit nozzle discharge. Motylewski, Tomasz; Linnartz, Harold // Review of Scientific Instruments;Feb1999, Vol. 70 Issue 2, p1305 

    Presents a sensitive and generally applicable technique for direct absorption spectroscopy on electronic transitions of transient species in the gas phase. Basis of the method on cavity ring down spectroscopy; Method's performance with the spectra of the electronic transition of the...

  • Optical cavity opens door to better detectors. Savage, Neil // Laser Focus World;Dec99, Vol. 35 Issue 12, p26 

    Deals with the use of absorption spectroscopy by chemists to measure small amounts of a substance. Use of cavity ring-down spectroscopy (CRDS) in absorption spectroscopy; Problems associated with the use of traditional CRDS; Application of CRDS; How the fluoride glasses was used to reflect...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics