Skip to main content

Research Repository

Advanced Search

Outputs (41)

Spectroscopic properties of Er doped and Er, Nd codoped fluoride glasses under simulated sunlight illumination (2011)
Journal Article
under simulated sunlight illumination. Optical Materials, 33(12), 1958-1963. https://doi.org/10.1016/j.optmat.2011.03.041

We investigated the fluorescence characteristics of Er codoped Nd doped ZBLAN glasses proposed for solar pumped fiber laser (SPFL) under simulated sunlight. Er is used as a sensitizer because it absorbs a part of the ultraviolet and visible light whe... Read More about Spectroscopic properties of Er doped and Er, Nd codoped fluoride glasses under simulated sunlight illumination.

Electroluminescence from electrostatically doped carbon nanotubes (2011)
Presentation / Conference
Hughes, M., Hata, K., Kishimoto, S., Ohno, Y., & Mizutani, T. (2011, March). Electroluminescence from electrostatically doped carbon nanotubes. Presented at The Japan Society of Applied Physics 58th Spring Meeting, Kanagawa Institute of Technology, Kanagawa

Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass (2011)
Journal Article
Hughes, M., Curry, R., & Hewak, D. (2011). Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass. Optical Materials, 33, 315-322. https://doi.org/10.1016/j.optmat.2010.09.007

Vanadium doped chalcogenide glass has potential as an active gain medium, particularly at telecommunications
wavelengths. This dopant has three spin allowed absorption transitions at 1100, 737 and
578 nm, and a spin forbidden absorption transition... Read More about Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass.

Spectroscopy of bismuth-doped lead–aluminum–germanate glass and yttrium–aluminum–silicate glass (2010)
Journal Article
yttrium–aluminum–silicate glass. Journal of Non-Crystalline Solids, 356(44-49), 2302-2309. https://doi.org/10.1016/j.jnoncrysol.2010.03.043

In this work we make a comparison between the spectroscopy of bismuth-doped lead–aluminum–
germanate (Bi:PAG) glass and bismuth-doped yttrium–aluminum–silicate (Bi:YAS) glass. We report the
variation in Bi absorption, emission and lifetime as the P... Read More about Spectroscopy of bismuth-doped lead–aluminum–germanate glass and yttrium–aluminum–silicate glass.

Quantum efficiency measurements on Nd-doped glasses for solar pumped lasers (2010)
Journal Article
Suzuki, T., Nasu, H., Hughes, M., Mizuno, S., Hasegawa, K., Ito, H., & Ohishi, Y. (2010). Quantum efficiency measurements on Nd-doped glasses for solar pumped lasers. Journal of Non-Crystalline Solids, 356(44-49), 2344-2349. https://doi.org/10.1016/j.jnoncrysol.2010.03.037

Nd-doped SiO2–B2O3–Na2O–Al2O3–CaO–ZrO2 glasses were prepared and optical properties such as absorption, lifetime and quantum efficiencies (QEs) of the emission were characterized. QE measurement system with natural sunlight as an excitation source wa... Read More about Quantum efficiency measurements on Nd-doped glasses for solar pumped lasers.

Towards a high-performance optical gain medium based on bismuth and aluminum co-doped germanate glass (2010)
Journal Article
and aluminum co-doped germanate glass. Journal of Non-Crystalline Solids, 356(6-8), 407-418. https://doi.org/10.1016/j.jnoncrysol.2009.11.028

In this paper we present the development process of glass based on bismuth and aluminum co-doped
germanate (GAB) glass. We found the addition of PbO to this glass (GAPB glass) increased the quantum
efficiency (QE). Excitation of GAPB glass at 808 n... Read More about Towards a high-performance optical gain medium based on bismuth and aluminum co-doped germanate glass.

The efficiencies of energy transfer from Cr to Nd ions in silicate glasses (2010)
Journal Article
Mizuno, S., Ito, H., Hasegawa, K., Nasu, H., Hughes, M., Suzuki, T., & Ohishi, Y. (2010). The efficiencies of energy transfer from Cr to Nd ions in silicate glasses. https://doi.org/10.1117/12.840822

The efficiency of energy transfer from Cr to Nd in silicate glasses has been examined in order to develop a gain medium for high-efficiency solar pumped fiber lasers (SPFLs). The internal quantum efficiency (QE) of the emission from the 4T2 state of... Read More about The efficiencies of energy transfer from Cr to Nd ions in silicate glasses.

Optical properties of Ni-doped MgGa2O4 single crystals grown by floating zone method (2010)
Journal Article
Suzuki, T., Hughes, M., & Ohishi, Y. (2010). Optical properties of Ni-doped MgGa2O4 single crystals grown by floating zone method. Journal of Luminescence, 130, 121-126. https://doi.org/10.1016/j.jlumin.2009.07.029

The single crystal growth conditions and spectroscopic characterization of Ni-doped MgGa2O4MgGa2O4 with inverse-spinel structure crystal family are described. Single crystals of this material have been grown by floating zone method. Ni-doped MgGa2O4M... Read More about Optical properties of Ni-doped MgGa2O4 single crystals grown by floating zone method.

Ultrabroad emission from a bismuth doped chalcogenide glass (2009)
Journal Article
Hughes, M., Akada, T., Suzuki, T., Ohishi, Y., & Hewak, D. (2009). Ultrabroad emission from a bismuth doped chalcogenide glass. Optics express, 17(22), 19345-19355. https://doi.org/10.1364/OE.17.019345

We report emission from a bismuth doped chalcogenide glass
which is flattened, has a full width at half maximum (FWHM) of 600 nm,
peaks at 1300 nm and covers the entire telecommunications window. At
cryogenic temperatures the FWHM reaches 850 nm.... Read More about Ultrabroad emission from a bismuth doped chalcogenide glass.