Conversion of infrared radiation into red emission in YVO[sub 4]:Yb,Ho

Ryba-Romanowski, W.; Golab, S.; Dominiak-Dzik, G.; Solarz, P.; Lukasiewicz, T.
November 2001
Applied Physics Letters;11/5/2001, Vol. 79 Issue 19, p3026
Academic Journal
Upon continuous wave excitation around 1 μm, a YVO[sub 4] crystal codoped with ytterbium and holmium exhibits intense red emission originating in the [sup 5]F[sub 5] level and considerably weaker green emission originating in the [sup 5]S[sub 2] level of Ho[sup 3+]. The ratio of the red to green emission intensities is 17:1 at 300 K. The dependence of the intensity of both emissions on the pump power is nearly the same but the mechanisms determined on the basis of short pulse excitation are found to be different. It is concluded that the green emission is excited by two consecutive energy transfers from Yb[sup 3+] to Ho[sup 3+], whereas excited state absorption is involved in the excitation of red emission. © 2001 American Institute of Physics.


Related Articles

  • 2.7-W Ho[sup 3+] -doped silica fibre laser pumped at 1100 nm and operating at 2.1 μm. Jackson, S.D. // Applied Physics B: Lasers & Optics;Jul2003, Vol. 76 Issue 7, p793 

    .The basic performance characteristics of a Ho[sup 3+] -doped silica fibre laser that operates in a single transverse mode at ∼2.1 μm and is pumped with the 1100-nm output from a free-running Yb[sup 3+] -doped silica fibre laser are presented. We measure a maximum slope efficiency (with...

  • Growth of multiwall carbon nanotubes in an inductively coupled plasma reactor. Delzeit, Lance; McAninch, Ian; Cruden, Brett A.; Hash, David; Chen, Bin; Han, Jie; Meyyappan, M. // Journal of Applied Physics;May2002, Vol. 91 Issue 9, p6027 

    A high density plasma from a methane–hydrogen mixture is generated in an inductively coupled plasma reactor, and multiwalled carbon nanotubes (MWNTs) are grown on silicon substrates with multilayered Al/Fe catalysts. The nanotubes are vertically aligned, and the alignment is better than...

  • Effect of detuning on the angular emission pattern of high-efficiency microcavity light-emitting diodes. Dill, C.; Stanley, R. P.; Oesterle, U.; Ochoa, D.; Ilegems, M. // Applied Physics Letters;12/28/1998, Vol. 73 Issue 26, p3812 

    Results on molecular beam epitaxy-grown microcavity light-emitting diodes with InGaAs/GaAs quantum wells and a hybrid top mirror are presented. An external quantum efficiency of 14.8% is achieved for a 400 μm diam light-emitting diode. The strong influence of the spectral overlap between the...

  • Vacuum ultraviolet laser emission from Nd+3:LaF3. Waynant, Ronald W.; Klein, Philipp H. // Applied Physics Letters;Jan1985, Vol. 46 Issue 1, p14 

    Laser emission at 172 nm has been produced by pumping a Nd:LaF3 crystal with incoherent Kr[ATOTHER]@B|[/ATOTHER] 2 radiation at 146 nm. The 5-ns pulse contained approximately 20–30 μJ of energy. Fluorescence measurements indicate potential for tuning from 170–175 nm, which...

  • Er,Yb:YAl3(BO3)4–efficient 1.5 μm laser crystal. Tolstik, N. A.; Kisel, V. E.; Kuleshov, N. V.; Maltsev, V. V.; Leonyuk, N. I. // Applied Physics B: Lasers & Optics;Oct2009, Vol. 97 Issue 2, p357 

    This article summarizes the latest achievements in the growth and characterization of Er,Yb:YAl3(BO3)4 laser crystal emitting in the 1.5–1.6 μm spectral range. Fundamental spectroscopic parameters relevant to laser performance of Er,Yb:YAB derived from absorption and emission spectra...

  • Ho[sup 3+] to Yb[sup 3] back transfer and thermal quenching of conversion green emission in.... Zhang, X.X.; Hong, P. // Applied Physics Letters;11/8/1993, Vol. 63 Issue 19, p2606 

    Examines energy transfer from holmium to ytterbium. Demonstration of energy transfer in fluoride crystals; Relationship of energy transfer and efficiency with temperature; Presentation of the mechanism governing back energy transfer.

  • Sensitized Ho... up-conversion luminescence in Nd...-Yb...-Ho... co-doped ZrF...-based glass. Qiu, J.; Kawamoto, Y. // Journal of Applied Physics;7/15/1999, Vol. 86 Issue 2, p909 

    Examines holmium up-conversion luminescence under 800 nanometer excitation in neodymium (Nd) ytterbium (Yb) holmium (Ho) co-doped zirconium-fluorine-based fluoride glasses. Energy transfer between Nd and Yb; Sensitization by energy transfer between Yb and Ho; Dependence of Ho up-conversion...

  • Amplification by stimulated emission from optically pumped nickel vapor in an ultraviolet region. Hirata, K.; Yoshino, S.; Ninomiya, H. // Applied Physics Letters;10/22/1990, Vol. 57 Issue 17, p1709 

    Amplification by stimulated emission has been observed from an optically pumped nickel vapor on the transitions at 347 and 381 nm. Nickel vapor was produced by direct laser vaporization, and the nickel atoms were optically pumped by a N2 laser at 337 nm. The amplification factor at 347 nm...

  • Kr-KCl exciplex lamp. Klenovskii, M. S.; Riives, R. B.; Kel'man, V. A.; Zhmenyak, Yu. V.; Shpenik, Yu. O. // Technical Physics;Jul2009, Vol. 54 Issue 7, p1007 

    A new source of UV radiation (excilamp) based on Kr-KCl vapor-gas mixture excited by a longitudinal high-voltage pulsed-periodic discharge is created. The emission spectrum and time characteristic of the discharge radiation are studied. The B → X transition in the KrCl* excimer molecule...


Read the Article


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

Try another library?
Sign out of this library

Other Topics