Orientational Dynamics of Liquids Confined in Nanoporous Sol−Gel Glasses Studied by Optical Kerr Effect Spectroscopy

2003 ◽  
Vol 36 (8) ◽  
pp. 605-612 ◽  
Author(s):  
Richard A. Farrer ◽  
John T. Fourkas
Keyword(s):  
Kerr Effect ◽  
Sol Gel ◽  
Optical Kerr Effect ◽  
Orientational Dynamics ◽  
Gel Glasses

Ultrafast Orientational Dynamics of Nanoconfined Benzene

2005 ◽  
Vol 899 ◽  
Author(s):  
Xiang Zhu ◽  
Richard Farrer ◽  
John Fourkas
Keyword(s):  
Contact Angle ◽  
Kerr Effect ◽  
Sol Gel ◽  
Optical Kerr Effect ◽  
Orientational Dynamics ◽  
Gel Glasses

AbstractOptical Kerr effect spectroscopy has been used to study the orientational dynamics of benzene and benzene-d6 confined in nanoporous sol-gel glasses. Orientational diffusion was found to be inhibited considerably in confinement due to the strong wetting of benzene on silica. The orientational dynamics of benzene-d6 were found to be affected less than those of benzene, which is in agreement with the somewhat larger contact angle of benzene-d6 on silica. Comparison of our results to Raman data for confined benzene-d6 suggests that this liquid is considerably more organized at the pore surfaces than in the bulk.

Dynamics of a wetting liquid in nanopores: An optical Kerr effect study of the dynamics of acetonitrile confined in sol-gel glasses

1999 ◽  
Vol 111 (11) ◽  
pp. 5116-5123 ◽  
Author(s):  
Brian J. Loughnane ◽  
Richard A. Farrer ◽  
Alessandra Scodinu ◽  
John T. Fourkas
Keyword(s):  
Kerr Effect ◽  
Sol Gel ◽  
Effect Study ◽  
Optical Kerr Effect ◽  
Gel Glasses ◽  
Wetting Liquid

Hybrid silica gel glasses with femtosecond optical kerr effect based on phthalocyanine

2006 ◽  
Vol 431 (4-6) ◽  
pp. 332-336 ◽  
Author(s):  
Jiayu Guo ◽  
Jinhai Si ◽  
Guodong Qian ◽  
Bin Hua ◽  
Zhiyu Wang ◽  
...  
Keyword(s):  
Silica Gel ◽  
Kerr Effect ◽  
Optical Kerr Effect ◽  
Hybrid Silica ◽  
Gel Glasses

Orientational dynamics on glassformer 2 [Ca(NO3)2]⋅3[KNO3]: A study by transient optical Kerr effect

1993 ◽  
Vol 98 (6) ◽  
pp. 4892-4896 ◽  
Author(s):  
Marilena Ricci ◽  
Paolo Foggi ◽  
Roberto Righini ◽  
Renato Torre
Keyword(s):  
Kerr Effect ◽  
Optical Kerr Effect ◽  
Orientational Dynamics

TEM visualization of surface replicated acid and base catalyzed sol-gel glasses

1986 ◽  
Vol 44 ◽  
pp. 448-449
Author(s):  
George C. Ruben ◽  
Merrill W. Shafer
Keyword(s):  
Elevated Temperatures ◽  
Sol Gel ◽  
Basic Medium ◽  
Glass Transition Point ◽  
Structural Space ◽  
Acid And Base ◽  
Organometallic Precursors ◽  
New Processing ◽  
Gel Glasses ◽  
Physical Phenomena

Traditionally ceramics have been shaped from powders and densified at temperatures close to their liquid point. New processing methods using various types of sols, gels, and organometallic precursors at low temperature which enable densificatlon at elevated temperatures well below their liquidus, hold the promise of producing ceramics and glasses of controlled and reproducible properties that are highly reliable for electronic, structural, space or medical applications. Ultrastructure processing of silicon alkoxides in acid medium and mixtures of Ludox HS-40 (120Å spheres from DuPont) and Kasil (38% K2O &62% SiO2) in basic medium have been aimed at producing materials with a range of well defined pore sizes (∼20-400Å) to study physical phenomena and materials behavior in well characterized confined geometries. We have studied Pt/C surface replicas of some of these porous sol-gels prepared at temperatures below their glass transition point.

Photo-Induced Magneto-Optical Kerr Effect in Europium Sulfide EuS

2020 ◽  
Vol 62 (9) ◽  
pp. 1619-1623
Author(s):  
P. A. Usachev ◽  
V. N. Katz ◽  
V. V. Pavlov
Keyword(s):  
Kerr Effect ◽  
Optical Kerr Effect ◽  
Europium Sulfide ◽  
Magneto Optical Kerr Effect
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