Dr. Jamie M. Leeder Profile

Dr. Jamie M. Leeder

at Univ of East Anglia

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 9 October 2015 Presentation + Paper

Surface functionalized spherical nanoparticles: an optical assessment of local chirality

Jamie Leeder, Henryk Haniewicz, David Andrews

Proceedings Volume 9545, 954502 (2015) https://doi.org/10.1117/12.2186514

KEYWORDS: Chromophores, Nanoparticles, Sensors, Optical spheres, Spherical lenses, Signal detection, Polarization, Optical testing, Magnetism, Active optics

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Proceedings Article | 31 August 2015 Presentation + Paper

Advanced electrodynamic mechanisms for the nanoscale control of light by light

David Andrews, Jamie Leeder, David Bradshaw

Proceedings Volume 9546, 95460O (2015) https://doi.org/10.1117/12.2190191

KEYWORDS: Laser beam diagnostics, Transistors, Electrodynamics, Nonlinear optics, Photons, Ultrafast phenomena, Scattering, Kerr effect, Light scattering, Chemical species

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Proceedings Article | 12 September 2014 Paper

Medium-dependent resonance energy transfer: a controlling role for three-center upconversion

Jamie Leeder, David Andrews

Proceedings Volume 9162, 91620Q (2014) https://doi.org/10.1117/12.2060842

KEYWORDS: Chromophores, Ions, Resolution enhancement technologies, Crystals, Resonance energy transfer, Energy transfer, Active optics, Upconversion, Electromagnetism, Electrodynamics

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Proceedings Article | 2 May 2014 Paper

Designing media for the local control of nanoscale absorption, transmission, and energy transfer

Jamie Leeder, Matt Coles, Jack Ford, David Andrews

Proceedings Volume 9126, 912615 (2014) https://doi.org/10.1117/12.2051222

KEYWORDS: Absorption, Chromophores, Scattering, Resolution enhancement technologies, Energy transfer, Molecular interactions, Polarizability, Lead, Molecules, Light scattering

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Interactions between light and molecular matter featuring photon absorption are commonly associated with excitation of individual chromophores. Subsequent relaxation is achieved through numerous mechanisms, such as scattering and energy transfer to neighbouring chromophores. The efficiency of such processes depends on many factors, including the intensity and wavelength of the optical input, the absorption cross-section of the molecule and the relative orientation of molecular components. New photonic materials are developed on the principle that such factors are controllable, duly tailoring the system to suit new technological applications. The parameters that determine the linear response in multicomponent materials are typically assessed within the theoretical framework of classical optics. However, with improved interest and capability in fabricating nanoscale structures (especially those that exhibit quantum effects), it is becoming increasingly relevant to develop theory that more faithfully represents how individual photons engage with matter. In such constructs, the interaction of materials with optical waves and photons is highly dependent on local molecular environment, therefore surrounding structures and ancillary species exert forms of influence on the photophysical processes inherent within dielectric media. At optical wavelengths where the secondary structure displays little intrinsic optical absorption, the role of such components is often interpreted as modifying the input through a corrective local index of refraction. Although expedient in the discussion of bulk properties of a macroscopic medium, it is reasonably supposed at a local chromophore-photon level that optical mechanisms operate in a different fashion. Using a fully quantized approach to the representation of local molecular electronic structure and electrodynamics, this research develops rigorous theory and a corresponding physical interpretation of how photon absorption, scattering and energy transfer are modified by vicinal, non-absorbing chromophores. The results provide insight into the mechanisms achieved within multi-chromophore systems, highlighting factors that assist in the optimization of optical characteristics in designer materials.

Proceedings Article | 19 August 2010 Paper

Optomechanical control of molecular motors

David Andrews, Luciana Dávila Romero, Jamie Leeder, Matt Coles

Proceedings Volume 7762, 776202 (2010) https://doi.org/10.1117/12.860641

KEYWORDS: Chromophores, Molecules, Molecular lasers, Molecular interactions, Pulsed laser operation, Motion models, Optical micromanipulation, Optical binding, Systems modeling, Absorption

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Proceedings Article | 11 May 2010 Paper

Controlling nanoscale optical emission with off-resonant laser light

David Andrews, Jamie Leeder, David Bradshaw

Proceedings Volume 7712, 77121R (2010) https://doi.org/10.1117/12.854555

KEYWORDS: Luminescence, Quantum dots, Laser beam diagnostics, Nonlinear optics, Absorption, Dispersion, Near field optics, Polarization, Ultrafast phenomena, Atmospheric particles

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Proceedings Article | 26 February 2010 Paper

The analysis of fluorophore orientation by multiphoton fluorescence microscopy

Jamie Leeder, David Andrews

Proceedings Volume 7569, 756922 (2010) https://doi.org/10.1117/12.841695

KEYWORDS: Luminescence, Polarization, Absorption, Chromophores, Multiphoton fluorescence microscopy, Photons, Multiphoton microscopy, Microscopy, Molecules, Molecular interactions

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Proceedings Article | 25 February 2010 Paper

Nonlinear optical techniques for improved data capture in fluorescence microscopy and imaging

David Bradshaw, Jamie Leeder, David Andrews

Proceedings Volume 7571, 75710B (2010) https://doi.org/10.1117/12.840946

KEYWORDS: Luminescence, Polarization, Absorption, Photons, Laser beam diagnostics, Multiphoton fluorescence microscopy, Microscopy, Nonlinear optics, Chromophores, Imaging systems

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Proceedings Article | 21 August 2008 Paper

London force and energy transportation between interfacial surfaces

David Bradshaw, Jamie Leeder, Justo Rodríguez, David Andrews

Proceedings Volume 7034, 703408 (2008) https://doi.org/10.1117/12.796083

KEYWORDS: Molecules, Resolution enhancement technologies, Molecular interactions, Dispersion, Interfaces, Molecular quantum electrodynamics, Absorption, Quantum electrodynamics, Spectroscopy, Resonance energy transfer

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Proceedings Article | 25 January 2008 Paper

Resonance energy transfer and interface forces: quantum electrodynamical analysis

David Bradshaw, Jamie Leeder, Justo Rodríguez, David Andrews

Proceedings Volume 6905, 690503 (2008) https://doi.org/10.1117/12.770253

KEYWORDS: Molecules, Resolution enhancement technologies, Particles, Quantum electrodynamics, Geometrical optics, Near field optics, Resonance energy transfer, Interfaces, Solids, Chromophores

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Showing 5 of 10 publications

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