TY - GEN
T1 - New tellurium based glasses for use in bio-sensing applications
AU - Wilhelm, Allison
AU - Boussard-Pledel, Catherine
AU - Lucas, Pierre
AU - Riley, Mark R.
AU - Bureau, Bruno
AU - Lucas, Jacques
PY - 2007
Y1 - 2007
N2 - A new family of Tellurium based glasses from the Ge-Te-I ternary system has been investigated for use in bio-sensing applications. A systematic series of compositions have been synthesized in order to explore the ternary phase diagram in an attempt to optimize the glass composition for the fiber drawing process. The characteristic temperatures Tg, the glass transition temperature, and Tx, the onset crystallization temperature, were measured in order to obtain ΔT, the difference between Tg and T x, which must be maximized for optimum fiber drawing ability, The resulting glass transition temperature range lies between 139°C and 174°C, with ΔT values between 64°C and 124°C. The mechanical properties of a selected number of glass compositions were also investigated, including hardness and Young's Modulus. The Ge-Te-I glasses have an effective transmission window between 2-27 microns, encompassing the region of interest for the identification of biologically relevant species such as carbon dioxide. Furthermore, the fibering potential of the Ge-Te-I glasses makes them an interesting candidate for use in fiber evanescent wave spectroscopy (FEWS) and other bio-sensing applications.
AB - A new family of Tellurium based glasses from the Ge-Te-I ternary system has been investigated for use in bio-sensing applications. A systematic series of compositions have been synthesized in order to explore the ternary phase diagram in an attempt to optimize the glass composition for the fiber drawing process. The characteristic temperatures Tg, the glass transition temperature, and Tx, the onset crystallization temperature, were measured in order to obtain ΔT, the difference between Tg and T x, which must be maximized for optimum fiber drawing ability, The resulting glass transition temperature range lies between 139°C and 174°C, with ΔT values between 64°C and 124°C. The mechanical properties of a selected number of glass compositions were also investigated, including hardness and Young's Modulus. The Ge-Te-I glasses have an effective transmission window between 2-27 microns, encompassing the region of interest for the identification of biologically relevant species such as carbon dioxide. Furthermore, the fibering potential of the Ge-Te-I glasses makes them an interesting candidate for use in fiber evanescent wave spectroscopy (FEWS) and other bio-sensing applications.
KW - Chalcogenide glass
KW - Glass formation
KW - IR spectroscopy
KW - Optical properties
KW - Tellurium
UR - http://www.scopus.com/inward/record.url?scp=34247403059&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34247403059&partnerID=8YFLogxK
U2 - 10.1117/12.724269
DO - 10.1117/12.724269
M3 - Conference contribution
AN - SCOPUS:34247403059
SN - 0819465461
SN - 9780819465467
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VII
T2 - Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VII
Y2 - 20 January 2007 through 21 January 2007
ER -