2007 Outstanding Publication Award
An internal committee of peers reviews Corning’s articles that have been presented in scientific publications and journals throughout the year, and selects the best research papers among those received for consideration.
Papers chosen represent the most outstanding research publications of Corning Incorporated that have had the most impact on advances in science and/or technology, and have had significant impact on Corning’s businesses. They serve as excellent examples of synergy and collaboration across laboratories, embodying the spirit of technical exchange while stimulating interaction within the worldwide scientific community.
OPA Winners
This year's outstanding paper was selected for recognition:
“Exposure and Compositional Factors that Influence Polarization Induced Birefringence in Silica Glass ”
Douglas C. Allan, Michal Mlejnek, Ulrich Neukirch, Charlene M. Smith, and Frances M. Smith; Optical Microlithography XX Proceedings of the SPIE, Vol. 6520; Paper: 65201Z; March 26, 2007
The microelectronics industries' ability to keep pace with Moore's law (the doubling of the number of transistors per integrated circuit every l8 to 24 months) has been due to advances in the photolithographic process, especially employing ever shorter wavelengths for the exposing light. However, at wavelengths of 193nm and below, the silica lenses in the photolithography systems can suffer a permanent polarization induced birefringence, or PIB, which adversely affects the image quality and resolution. This paper reports a fundamental study of PIB in silica and proposes a mechanism that can explain the role of hydroxyl in PIB.
Abstract:
Silica glass exhibits a permanent anisotropic response, referred to as polarization induced birefringence (PIB), when exposed to short wavelength, polarized light. The magnitude of the PIB has been empirically correlated with the OH content of the glass. Our recent studies pertaining to PIB have focused on careful characterization of PIB, with particular emphasis on understanding all of the contributions to the measured birefringence signal and finally extracting only that signal associated with birefringence arising from exposure to a polarized light beam. We will demonstrate that a critical contributor to the total birefringence signal is birefringence that comes from exposure beam inhomogeneities. After subtracting beam profile effects we are able to show that PIB is proportional to the OH content of the glass. Polarized infrared (IR) measurements were performed on glasses that developed PIB as a consequence of exposure to polarized 157-nm light. These studies reveal that there is preferential bleaching of a specific hydroxyl (OH) species in the glass with OH aligned parallel to the incident polarization undergoing more bleaching than those perpendicular. Further, we observe a very strong correlation between the measured PIB of these samples and the anisotropic bleaching. From these studies we propose a mechanism that can explain the role of hydroxyl in PIB.
Honorable Mentions:
“A Study of Visible Defects Caused by Local Cell Gap Variations in LCD Panels”
Arash Mafi and Michal Mlejnek; Optics Express, Vol. 15; No. 4; pp. 1553-1560; February 19, 2007
“Al/Ge Co-doped Large Mode Area Fiber with High SBS Threshold”
Ming-Jun Li, Xin Chen, Ji Wang, Stuart Gray, Anpling Liu, Jeffrey A. Demeritt, A. Boh Ruffin, Alana M. Crowley, Donnell T. Walton, and Luis A. Zenteno; Optics Express, Vol. 15; No. 13; pp. 8290-8299; 2007
“Polar Interactions at Liquid/polymer Interfaces”
Alain Carre; Journal of Adhesion Science and Technology, Vol. 21; No. 10; pp. 961-981; 2007
“Radio Over Fiber for Picocellular Network Architectures”
Michael Sauer, Andrey Kobyakov, and Jacob George; IEEE Journal of Lightwave Technology, Vol. 25; No. 11; pp. 3301-3320; 2007
“SOFC - A Playground for Solid State Chemistry”
Monika Backhaus-Ricoult; Solid State Sciences, In Press, Corrected Proof, Available online 23 November 2007
“Synthesis and Structure of Alkylsubstituted Fused Thiophenes Containing Up to Seven Rings”
Mingqian He and Feixia Zhang; Journal of Organic Chemistry, Vol. 72; No. 2; pp. 442; January 15, 2007