P. V. Dos Santos, M. T. De Araujo, A. S. Gouveia-Neto, J. A. M. Neto and A. S. B. Sombra, "Optical thermometry through infrared excited upconversion fluorescence emission in Er-and Er-Yb-doped chalcogenide glasses", IEEE J. Quantum Electron., vol. 35, pp. 395-399, 1999.
A. Rapaport, J. Milliez, M. Bass, A. Cassanho and H. Jenssen, "Numerical model of the temperature dependence of the up-conversion efficiency of fluoride crystals codoped with ytterbium and thulium", J. Appl. Phys., vol. 97, pp. 123 527-123 527, 2005.
J. L. Sommerdijk, "On the excitation mechanisms of the infrared-excited visible luminescence in Yb, Er-doped fluorides", J. Luminescence, vol. 4, pp. 441-449, 1971.
L. F. Johnson, H. J. Guggenheim, T. C. Rich and F. W. Ostermayer, "Infrared-to-visible conversion by rare-earth ions in crystals", J. Appl. Phys., vol. 43, pp. 1125-1137, 1972.
N. Bloembergen, "Solid state infrared quantum counters", Phys. Rev. Lett., vol. 2, pp. 84-85, 1959.
A. Rapaport, J. Milliez, M. Bass, A. Cassanho and H. Jenssen, "Review of the properties of up-conversion phosphors for new emissive displays", in SID'2004 Int. Symp. Dig. Tech. Papers , vol. XXXV, Seattle, WA, May 2004, pp. 1237-1239.
A. Rapaport, J. Milliez, M. Bass, A. Cassanho and H. Jenssen, "Role of pump duration on temperature and efficiency of up-conversion in fluoride crystals co-doped with ytterbium and thulium", Opt. Expr., vol. 12, pp. 5215-5220, 2004.
J. Milliez, A. Rapaport, F. Szipocs, M. Bass, A. Cassanho and H. Jenssen, "Up-conversion efficiency of potential candidates for photonic displays", in SID'2003 Int. Symp. Dig. Tech. Papers, vol. XXXIV, Baltimore, MD, May 2003, pp. 1230-1233.
M. Bass and K. Belfield, "Composites of inorganic luminophores stabilized in polymer hosts", Patent no. 6 844 387, Jan. 18, 2005.
A. Travis, F. Payne, J. Zhong and J. Moore, "Flat panel display using projection within a wedge-shaped waveguide", in Conf. Rec. 20th Int. Display Res. Conf., Palm Beach, FL, Sep. 2000, pp. 292-295.
A. R. L. Travis, "Achromatic Flat-Panel Display", Patent no. 6 883 919, Apr, 26, 2005.
J. L. Sommerdijk, A. Bril, J. A. de Poorter and R. E. Breemer, "Fluorescence decay of Yb, Er-doped compounds. II. Cathode-ray excitation", Philips Res. Rep., vol. 29, pp. 13-24, 1974 .
G. Ozen, D. J. P. Xu Wu, A. Kermaoui, F. Pelle and B. Blanzat, "Optical properties and upconverted emissions of Tm in Yb doped fluorophosphate glasses", J. Physics & Chemistry of Solids, vol. 54, pp. 1533-1533, 1993.
R. A. Hewes and J. F. Sarver, "Infrared excitation processes for the visible luminescence of Er, Ho and Tm in Yb-sensitized rare-earth trifluorides", Phys. Rev., vol. 182, pp. 427-436, 1969.
L. Esterowitz, J. Noonan and J. Bahler, "Enhancement in a Ho3+ [single Bond] Yb3+ quantum counter by energy transfer", Appl. Phys. Lett., vol. 10, pp. 126-126, 1967.
F. Auzel, "Application of resonant energy transfers to the laser effect in Er-doped glasses", Ann. Telecommun., vol. 24, pp. 363-376, 1969.
J. E. Geusic, F. W. Ostermayer, H. M. Marcos, L. G. Van Uitert and J. P. van der Ziel, "Efficiency of red, green and blue infrared-to-visible conversion sources", J. Appl. Phys., vol. 42, pp. 1958-1960, 1971.
H. J. Guggenheim and L. F. Johnson, "New fluoride compounds for efficient infrared-to-visible conversion", Appl. Phys. Lett., vol. 15, pp. 51-52, 1969 .
L. F. Johnson, J. E. Geusic, H. J. Guggenheim, T. Kushida, S. Singh and L. G. Van Uitert, "Comments on materials for efficient infrared conversion", Appl. Phys. Lett., vol. 15, pp. 48-50, 1969.
L. G. Van Uitert, S. Singh, H. J. Levinstein, L. F. Johnson, W. H. Grodkiewicz and J. E. Geusic, "Efficient infrared-to-visible conversion by rare-earth oxychlorides", Appl. Phys. Lett., vol. 15, pp. 53-54, 1969.
W. Lenth and R. M. Macfarlane, "Upconversion lasers", Opt. Photon. News, vol. 3, pp. 8-8, 1992.
X. X. Zhang, P. Hong, M. Bass and B. H. T Chai, "Energy transfer in Yb sensitized upconversion laser crystals", in Summaries of Papers-Int. Quantum Electronics Conf. (IQEC '94), vol. 9, 1994, pp. 40-40.
G. Huber, E. Heumann, T. Sandrock and K. Petermann, "Up-conversion processes in laser crystals", J. Luminescence, vol. 72-74, pp. 1-1, 1997.
H. Scheife, G. Huber, E. Heumann, S. Bar and E. Osiac, "Advances in up-conversion lasers based on Er and Pr", Opt. Mater., vol. 26, pp. 365-365, 2004.
E. Osiac, E. Heumann, G. Huber, S. Kuck, E. Sani, A. Toncelli and M. Tonelli, "Orange and red upconversion laser pumped by an avalanche mechanism in Pr, Yb:BaY2F8", Appl. Phys. Lett., vol. 82, pp. 3832-3832, 2003.
R. J. Thrash and L. F. Johnson, "Upconversion laser emission from Yb-sensitized Tm in BaY2F8", J. Opt. Soc. Amer. B (Opt. Phys.), vol. 11, pp. 881-881, 1994.
"SHEDS: The next revolution for the laser diode," in Photon. Spectra, 2005, pp. 89-118.
M. L. F. Phillips, M. P. Hehlen, K. Nguyen, J. M. Sheldon and N. J. Cockroft, "Upconversion phosphors: Recent advances and new applications", in Proc. Eighth Int. Symp. Physics and Chemistry of Luminescent Materials, vol. 99-40, Honolulu, HI, Oct. 1999, pp. 123-127.
R. H. Page, K. I. Schaffers, P. A. Waide, J. B. Tassano, S. A. Payne, W. F. Krupke and W. K. Bischel, "Upconversion-pumped luminescence efficiency of rare-earth-doped hosts sensitized with trivalent ytterbium", J. Opt. Soc. Amer. B (Opt. Phys.), vol. 15, pp. 996 -1008, 1998.
A. Rapaport, F. Szipocs, J. Milliez, H. Jenssen, M. Bass, K. Schafer, K. Belfield and M. Bass, "Optically written displays based on up-conversion of near infrared light", in Proc. Seventh Int.Display Workshops (IDW'00), Kobe, Japan, 2000, pp. 825 -828.