Prof. Gilbert C. Walker Profile

Prof. Gilbert C. Walker

at Univ of Toronto

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Author

Publications (10)

Proceedings Article | 21 February 2020 Paper

Peak force infrared microscopy for label-free chemical imaging at sub 10 nm spatial resolution

Le Wang, Guanghong Zeng, Gilbert Walker, Xiaoji Xu

Proceedings Volume 11252, 112521L (2020) https://doi.org/10.1117/12.2541976

KEYWORDS: Microscopy, Infrared microscopy, Infrared radiation, Spatial resolution, Polaritons, Atomic force microscopy, Imaging spectroscopy, Infrared spectroscopy, Infrared imaging, Spectroscopy

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Proceedings Article | 11 October 2016 Paper

Surface phonon coupling within boron nitride resolved by a novel near-field infrared pump-probe imaging technique

Leonid Gilburd, Xiaoji Xu, Sissi de Beer, Yoshio Bando, Dmitri Golberg, Gilbert Walker

Proceedings Volume 9925, 99250L (2016) https://doi.org/10.1117/12.2237901

KEYWORDS: Boron, Phonons, Polaritons, Near field optics, Infrared imaging, Infrared radiation, Optical microscopy, Near field, Absorption, Atomic force microscopy

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Proceedings Article | 1 February 2012 Paper

Polymer-coated surface enhanced Raman scattering (SERS) gold nanoparticles for multiplexed labeling of chronic lymphocytic leukemia cells

Christina MacLaughlin, Edward P. Parker, Gilbert Walker, Chen Wang

Proceedings Volume 8212, 821203 (2012) https://doi.org/10.1117/12.909192

KEYWORDS: Surface enhanced Raman spectroscopy, Gold, Particles, Nanoparticles, Molecules, Transmission electron microscopy, Light scattering, Monoclonal antibodies, Coating, Raman spectroscopy

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Proceedings Article | 1 February 2012 Paper

Lipid-encapsulation of surface enhanced Raman scattering (SERS) nanoparticles and targeting to chronic lymphocytic leukemia (CLL) cells

Shell Ip, Christina MacLaughlin, Nisa Mullaithilaga, Michelle Joseph, Samantha Wala, Chen Wang, Gilbert Walker

Proceedings Volume 8212, 821204 (2012) https://doi.org/10.1117/12.909179

KEYWORDS: Particles, Surface enhanced Raman spectroscopy, Nanoparticles, Raman spectroscopy, Control systems, Gold, Raman scattering, Coating, Light scattering, Scattering

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Proceedings Article | 14 October 2004 Paper

The role of adhesion forces in nanoscale measurements of the conductive properties of organic surfaces using conductive probe AFM

Alexei Tivanski, Gilbert Walker

Proceedings Volume 5513, (2004) https://doi.org/10.1117/12.559718

KEYWORDS: Polymers, Gold, Molecules, Capacitance, Natural surfaces, Atomic force microscopy, Dielectrics, Optical spheres, Electrodes, Spherical lenses

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Proceedings Article | 4 December 2003 Paper

Apertureless near-field microscopy for chemical imaging of surfaces

Larissa Stebounova, Boris Akhremitchev, Gilbert Walker

Proceedings Volume 5223, (2003) https://doi.org/10.1117/12.511935

KEYWORDS: Signal detection, Near field, Infrared radiation, Scattering, Near field scanning optical microscopy, Light scattering, Microscopy, Reflectors, Finite-difference time-domain method, Homodyne detection

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Proceedings Article | 16 September 2003 Paper

A study of near-field aperture geometry effects on very small aperture lasers (VSAL)

Fang Chen, Amit Itagi, Larissa Stebounova, James Bain, Daniel Stancil, Gilbert Walker, Tuviah Schlesinger

Proceedings Volume 5069, (2003) https://doi.org/10.1117/12.532753

KEYWORDS: Near field, Near field scanning optical microscopy, Finite-difference time-domain method, Signal detection, Near field optics, Metals, Semiconductor lasers, Polarization, Ion beams, Free space

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Proceedings Article | 1 May 1993 Paper

Femtosecond infrared spectroscopy of biological processes

Gilbert Walker, B. Cowen, S. Maiti, C. Moser, P. Dutton, Robin Hochstrasser

Proceedings Volume 1890, (1993) https://doi.org/10.1117/12.145244

KEYWORDS: Proteins, Infrared spectroscopy, Infrared radiation, Spectroscopy, Chromophores, Picosecond phenomena, Absorption, Absorbance, Ultrafast phenomena, Femtosecond phenomena

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Proceedings Article | 1 April 1992 Paper

Ultrafast studies on electron transfer in the betaines: evidence for local heating

Nancy Levinger, Alan Johnson, Gilbert Walker, Eva Akesson, Paul Barbara

Proceedings Volume 1638, (1992) https://doi.org/10.1117/12.58158

KEYWORDS: Absorption, Molecules, Ultrafast phenomena, Chemistry, Time metrology, Ultrafast measurement systems, Data modeling, Environmental sensing, Optical amplifiers, Chlorine

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Proceedings Article | 1 April 1990 Paper

Ultrafast experiments on electron transfer

Paul Barbara, Gilbert Walker, Tai-Jong Kang, Wlodzimierz Jarzeba

Proceedings Volume 1209, (1990) https://doi.org/10.1117/12.17888

KEYWORDS: Picosecond phenomena, Luminescence, Molecules, Femtosecond phenomena, Spectroscopy, Ultrafast phenomena, Dielectrics, Ions, Carbonates, Data modeling

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Showing 5 of 10 publications

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