chalcogenides.com

Vahid G. Ta’eed1, Neil J. Baker1, Libin Fu1, Klaus Finsterbusch1, Michael R.E. Lamont1,

David J. Moss1, Hong C. Nguyen1, Benjamin J. Eggleton1*, Duk Yong Choi2,

Steven Madden2, and Barry Luther-Davies2

1Centre for Ultrahigh bandwidth Devices for Optics Systems (CUDOS)

School of Physics, University of Sydney, NSW 2006, Australia

2Centre for Ultrahigh bandwidth Devices for Optics Systems (CUDOS)

Laser Physics Centre, The Australian National University, Canberra, ACT 0200, Australia

http://www.cudos.org.au/

*Corresponding author: egg@physics.usyd.edu.au

Abstract: Chalcogenide glasses offer large ultrafast third-order

nonlinearities, low two-photon absorption and the absence of free carrier

absorption in a photosensitive medium. This unique combination of

properties is nearly ideal for all-optical signal processing devices. In this

paper we review the key properties of these materials, outline progress in

the field and focus on several recent highlights: high quality gratings,

http://oe.osa.org/DirectPDFAccess/08D04207-BDB9-137E-C784516F9E4BD98A_139877.pdf?da=1&id=139877&seq=0&CFID=49370052&CFTOKEN=43942757

Mellikov, E. (Tallinn Univ. of Technol., Estonia); Hiie, J.; Altosaar, M. Source: International Journal of Materials & Product Technology, v 28, n 3-4, 2007, p 291-311

Inorganic porous materials are being developed for use as molecular sieves, ion exchangers, and catalysts, but most are oxides. We show that various sulfide and selenide clusters, when bound to metal ions, yield gels having porous frameworks. These gels are transformed to aerogels after supercritical drying with carbon dioxide. The aerogels have high internal surface area (up to 327 square meters per gram) and broad pore size distribution, depending on the precursors used. The pores of these sulfide and selenide materials preferentially absorb heavy metals. These materials have narrow energy gaps (between 0.2 and 2.0 electron volts) and low densities, and they may be useful in optoelectronics, as photocatalysts, or in the removal of heavy metals from water.

^{Full article:
http://www.sciencemag.org/cgi/content/full/317/5837/490}

Hyo, Joong Lee (Department of Chemistry, Center for Integrated Molecular Systems, Pohang University of Science and Technology); Kim, Dae-Young; Yoo, Jung-Suk; Bang, Jiwon; Kim, Sungjee; Park, Su-Moon Source: Bulletin of the Korean Chemical Society, v 28, n 6, Jun 20, 2007, p 953-958

Finsterbusch, Klaus (Centre for Ultrahigh-Bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney); Baker, Neil J.; Ta'eed, Vahid G.; Eggleton, Benjamin J.; Choi, Duk-Yong; Madden, Steve; Luther-Davies, Barry Source: Journal of the Optical Society of America B: Optical Physics, v 24, n 6, June, 2007, p 1283-1290

Gautam, S. (Centre of Adv. Study in Phys., Panjab Univ., Chandigarh, India); Thakur, A.; Tripathi, S.K.; Goyal, N. Source: Journal of Non-Crystalline Solids, v 353, n 13-15, 15 May 2007, p 1315-21

Seddon, A.B. (Novel Photonic Glasses Group, Nottingham Univ., UK); Pan, W.J.; Furniss, D.; Rowe, H.; Miller, C.A.; Loni, A.; Sewell, P.; Benson, T.M. Source: Journal of Non-Crystalline Solids, v 353, n 13-15, 15 May 2007, p 1302-6

Wagner, T. (Dept. of Gen. & Inorg. Chem., Univ. of Pardubice, Czech Republic); Gutwirth, J.; Bezdicka, P.; Vlcek, Mil.; Kasap, S.O.; Frumar, M. Source: Journal of Non-Crystalline Solids, v 353, n 13-15, 15 May 2007, p 1431-6

Teteris, J. (Inst. of Solid State Phys., Univ. of Latvia, Riga, Latvia); Reinfelde, M. Source: Journal of Non-Crystalline Solids, v 353, n 13-15, 15 May 2007, p 1450-3

Gun-Young Jung (Dept. of Mater. Sci. & Eng., Gwangju Inst. of Sci. & Technol., South Korea); Heon Lee; Sung-Hoon Hong; Ki-Yeon Yang Source: Microelectronic Engineering, v 84, n 4, April 2007, p 573-6