Brian Vohnsen
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Physics
Brian Vohnsen's Degrees
- PhD Physics University of Copenhagen
- Masters Physics University of Copenhagen
- Bachelors Physics University of Copenhagen
Why Is Brian Vohnsen Influential?
(Suggest an Edit or Addition)According to Wikipedia, Brian Vohnsen is an Associate Professor of Physics at UCD in Dublin, Ireland specializing in optics. He is head of the Advanced Optical Imaging Group which he founded in 2008. He has received recognition for his ability to connect the field of biomedical optics and nano-optics. In 2021 he became a fellow of Optica for significant contributions to vision science, including photoreceptor optics and high resolution retinal imaging.
Brian Vohnsen's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- Guided light and diffraction model of human-eye photoreceptors. (2005) (75)
- Direct observation of surface polariton localization caused by surface roughness (1995) (62)
- Photoreceptor waveguides and effective retinal image quality. (2007) (57)
- Directional sensitivity of the retina: A layered scattering model of outer-segment photoreceptor pigments. (2014) (53)
- Transfer functions in collection scanning near-field optical microscopy (1999) (48)
- Digital pyramid wavefront sensor with tunable modulation. (2013) (34)
- Polarization structuring for focal volume shaping in high-resolution microscopy (2007) (33)
- Near-field optics with uncoated fiber tips: light confinement and spatial resolution (1997) (31)
- Analysis of individual cone-photoreceptor directionality using scanning laser ophthalmoscopy (2011) (30)
- Near-field optical microscopy of nonlinear susceptibilities (1998) (29)
- Second-Harmonic Reflection Imaging of Normal and Accelerated Corneal Crosslinking Using Porcine Corneas and the Role of Intraocular Pressure (2014) (27)
- Ultrasmall spot size scanning laser ophthalmoscopy (2011) (27)
- Absence of an integrated Stiles-Crawford function for coherent light. (2010) (25)
- Myopic aberrations: impact of centroiding noise in Hartmann Shack wavefront sensing (2013) (24)
- Wavefront sensing with an axicon. (2011) (24)
- Analysing the impact of myopia on the Stiles‐Crawford effect of the first kind using a digital micromirror device (2018) (23)
- SELF-CONSISTENT MODEL FOR PHOTON SCANNING TUNNELING MICROSCOPY : IMPLICATIONS FOR IMAGE FORMATION AND LIGHT SCATTERING NEAR A PHASE-CONJUGATING MIRROR (1996) (23)
- A direct comparison between a MEMS deformable mirror and a liquid crystal spatial light modulator in signal-based wavefront sensing (2013) (22)
- Temporal wavefront stability of an ultrafast high-power laser beam. (2009) (22)
- Directional imaging of the retinal cone mosaic. (2004) (20)
- Volumetric integration model of the Stiles-Crawford effect of the first kind and its experimental verification. (2017) (20)
- Characterization of near-field optical probes. (1999) (19)
- Hartmann-Shack wavefront sensing for nonlinear materials characterization. (2009) (18)
- Digital phase-shifting point diffraction interferometer. (2014) (18)
- Hartmann-Shack wavefront sensing without a lenslet array using a digital micromirror device. (2018) (18)
- Confocal scanning laser ophthalmoscope with adaptive optical wavefront correction (2003) (18)
- Polarimetric high-resolution confocal scanning laser ophthalmoscope (2005) (16)
- Direct visualization of evanescent optical waves (2003) (16)
- Blind deconvolution for high-resolution confocal scanning laser ophthalmoscopy* (2005) (16)
- Fractal surface characterization: implications for plasmon polariton scattering (1996) (15)
- Spatial and spectral characterisation of the first and second Stiles–Crawford effects using tuneable liquid-crystal filters (2011) (14)
- Surface-plasmon-based wavefront sensing (2015) (13)
- Second‐harmonic microscopy of ex vivo porcine corneas (2008) (12)
- Measuring Ocular Aberrations Sequentially Using a Digital Micromirror Device (2019) (12)
- Wavefront sensing using a liquid-filled photonic crystal fiber. (2011) (12)
- Phase unwrapping with a virtual Hartmann-Shack wavefront sensor. (2015) (12)
- Multi-faceted digital pyramid wavefront sensor (2014) (11)
- Near‐ and far‐field second‐harmonic imaging of quasi‐phase‐matching crystals (2001) (11)
- On the spectral relation between the first and second Stiles–Crawford effect (2009) (11)
- Nonlinear registration for scanned retinal images: application to ocular polarimetry. (2008) (10)
- Coupling of surface-plasmon polaritons to directional far-field radiation by an individual surface protrusion. (2001) (10)
- Optical characterization of probes for photon scanning tunnelling microscopy (1999) (10)
- Exploring the Stiles-Crawford effect of the first kind with coherent light and dual Maxwellian sources. (2013) (10)
- Holographic Approach to Phase Conjugation of Optical Near Fields (1997) (10)
- Study of shear force technique for near-field microscopy with an uncoated fiber tip (1995) (10)
- Retina-simulating phantom produced by photolithography. (2017) (9)
- Directional light scanning laser ophthalmoscope. (2005) (9)
- Single- and multimode characteristics of the foveal cones: the super-Gaussian function (2011) (9)
- Monocular accommodation response to random defocus changes induced by a tuneable lens (2019) (9)
- Simulating human photoreceptor optics using a liquid-filled photonic crystal fiber (2011) (9)
- Rate of riboflavin diffusion from intrastromal channels before corneal crosslinking (2016) (8)
- Second-harmonic scanning optical microscopy of semiconductor quantum dots (2001) (8)
- Near/Far-Field Investigations of the Interaction between Surface Waves and Nanoparticles (2002) (8)
- Defocus-corrected analysis of the foveal Stiles–Crawford effect of the first kind across the visible spectrum (2013) (7)
- Simultaneous drift, microsaccades, and ocular microtremor measurement from a single noncontact far-field optical sensor (2015) (7)
- Closed-loop adaptive optics using a spatial light modulator for sensing and compensating of optical aberrations in ophthalmic applications (2014) (7)
- Controlling polarization twisting of light resulting from surface plasmon interactions with threefold symmetric nanostructures (2009) (6)
- Near-field imaging of optical phase and its singularities (2002) (6)
- 18 The retina and the Stiles–Crawford effects (2017) (6)
- Reflection second-harmonic microscopy of individual semiconductor microstructures (2001) (5)
- Directional light-capture efficiency of the foveal and parafoveal photoreceptors at different luminance levels: an experimental and analytical study. (2019) (5)
- Geometrical scaling of the developing eye and photoreceptors and a possible relation to emmetropization and myopia (2021) (4)
- Near-field optical microscopy with a phase-conjugating mirror (1998) (4)
- Uniaxial flicker analysis of the psychophysical Stiles–Crawford effects (2017) (4)
- A Short History of Optics (2004) (4)
- Differential detection of retinal directionality. (2018) (3)
- Comment on "Local observations of phase singularities in optical fields in waveguide structures". (2001) (3)
- Wavefront sensing with an oil-filled photonic crystal fiber (2012) (2)
- 3-D Analysis of Pinhole Size Optimization for a Confocal Signal-based Wavefront Sensor (2014) (2)
- Subjective measurement of the Stiles-Crawford effect with different field sizes. (2021) (2)
- Method to reduce undesired multiple fundus scattering effects in double-pass systems. (2019) (2)
- Retina-simulating phantom produced by chemically amplified photolithography (2016) (2)
- Modeling Photoreceptor Mosaic Imaging as Backscattering of Light from Multilayered Discs (2014) (2)
- Clinical Applications of High Resolution In-Vivo Retinal Imaging (2013) (2)
- Weak Localization of Surface Plasmon Polaritons: Direct Observation with Photon Scanning Tunneling Microscope (1996) (2)
- Virtual pyramid wavefront sensor for phase unwrapping. (2016) (2)
- On pinhole size optimization in wavefront sensorless adaptive optics (2013) (1)
- Polarization Controlled Second-Harmonic Microscopy For Cornea Collagen-I Fibril Imaging (2014) (1)
- In-Vitro Estimation of O2 Concentrations during Corneal Cross-Linking (CXL) for Porcine Corneas and Collagen Type-I Gels (2017) (1)
- Phase Conjugation of Optical Near Fields by a Surface Hologram (1997) (1)
- Multiphoton Imaging of Cornea and Retinal Tissues (2007) (1)
- Novel high-sensitivity Z-scan technique based on a Hartmann-Shack wavefront sensor (2010) (1)
- Exploring photoreceptor directionality using quadrant pupil detection (2015) (1)
- Non-Linear Correction of Eye Movements for Scanning Laser Ophthalmoscope Imagery (2007) (1)
- Optimization of sensing parameters for a confocal signal-based wavefront corrector in microscopy (2015) (1)
- Visual and Physiological Optics (2013) (1)
- COHERENT FIBRE-BUNDLE WAVEFRONT SENSOR – Oral Paper (2008) (1)
- Analysis of photoreceptor pointing using quadrant pupil detection (2017) (1)
- Confocal Scanning Laser Ophthalmoscopy with Ultrasmall Spot Size (2011) (1)
- Waveguide Models and the Stiles-Crawford Effects (2008) (1)
- Session III. Biomedical imaging and AO.-Promises and limitations of wavefront corrections with annular apertures using Scanning Laser Ophthalmoscopy (2020) (0)
- Photoreceptor Waveguiding and the Hue Shift of the Second Stiles Crawford Effect (2009) (0)
- Geometrical optics model of the retina for improved refractive designs (2018) (0)
- Lateral Diffusion Coefficient in CXL with Corneal Channels (2014) (0)
- Panel Discussion on Light in Nature (2021) (0)
- Resolution measurements with scanning far- and near-field optical second-harmonic microscopes (2006) (0)
- Publisher's Note: Comment on "Local Observations of Phase Singularities in Optical Fields in Waveguide Structures" (2001) (0)
- Understanding the role of retinal cone photoreceptors in color perception, blur, and emmetropization (2020) (0)
- Modeling the Impact of the Stiles-Crawford Effect on Accommodation Directly at the Retina (2012) (0)
- Understanding the Optics of the Human Retina: Its role in Vision and in Retinal Imaging (2018) (0)
- Second-harmonic microscopy for cornea collagen fibril imaging: Theoretical and experimental optimization (2011) (0)
- Scanning second-harmonic optical microscopy of self-assembled InAlGaAs quantum dots (2001) (0)
- Measuring Individual Cone Directionalities Using Scanning Laser Ophthalmoscopy (2012) (0)
- Sequential Wavefront Sensing using a Scanning Aperture (2018) (0)
- Hartmann-Shack Wavefront Sensing of Zernike Polynomials for Nonlinear Materials Characterization (2009) (0)
- Digital pyramid wavefront sensor (2013) (0)
- Single-beam flickering for characterization of the Stiles-Crawford effect across the visible spectrum (2013) (0)
- Confocal Retinal Imaging using Scanning Laser Opthalmoscopy with Annular Beams (2012) (0)
- Exploring directional retinal light scattering using a digital micromirror device (2018) (0)
- REAL TIME WAVEFRONT SENSING FOR ULTRAFAST HIGH-POWER LASER BEAMS – Oral Paper (2008) (0)
- Direct Integration of the Stiles-Crawford Effect of the First Kind using Pupil Flicker Methodology (2017) (0)
- Effects Of Waveguide Properties Of Human Photoreceptor Cones, Simulating Its Optical Properties With A Photonic Crystal Fiber (2011) (0)
- The integrated Stiles-Crawford effect for coherent and incoherent extended sources (2013) (0)
- How Long Must a Photoreceptor Be to Become Waveguiding (2016) (0)
- On the Relation Between the Stiles–Crawford Effect and Its Optical Equivalent (2005) (0)
- The role of defocus on photoreceptor light coupling analyzed with a waveguide-based retinal simulator (2013) (0)
- The impact of aberrations in a 3D retinal model eye (2021) (0)
- The integrated Stiles-Crawford effect: understanding the role of pupil size and outer-segment length in foveal vision (2021) (0)
- Coherent dipole scattering from visual pigments and a possible connection to photoreceptor waveguiding (2013) (0)
- Impact of Cone Disarray on the Stiles-Crawford Effect of the First Kind (2012) (0)
- Photoreceptor Analysis using Entrance-Pupil Structuring and Motorized Confocal Scanning (2012) (0)
- Second-Harmonic Microscopy Optimization of Cornea Collagen-I Fibril Imaging (2011) (0)
- Frequency Analysis of the Transient Stiles-Crawford Effect (2012) (0)
- Exploring Directionality In Second-harmonic Cornea Microscopy (2012) (0)
- Monocular foveal, parafoveal, and perifoveal accommodation response to random defocus step changes (2020) (0)
- Characterizing the Stiles-Crawford effect of the first kind at foveal and parafoveal regions using a digital micromirror device (2018) (0)
- Single Beam Frequency Flickering Analysis of the Stiles-Crawford Effect of the First Kind (2014) (0)
- Factors Affecting the Magnitude of Cone Directionality in the Stiles-Crawford Effect of the First Kind (2016) (0)
- From Visual Optics to Wavefront Sensors: Understanding the Role of Phase in Vision and Sensing of Aberrations (2022) (0)
- Wavefront Sensing via Attenuated Reflection using Near-Resonant Surface-Plasmon Polariton Excitation (2015) (0)
- Adaptive Optics OCT-Based Drusen Grading for Assessing Severity of Dry Age-Related Macular Degeneration (2019) (0)
- Sampling of Wavefront Aberrations using a Digital Micromirror Device (2020) (0)
- Promises and limitations of wavefront corrections with annular apertures using Scanning Laser Ophthalmoscopy (2011) (0)
- Spectral and Spatial Characteristics of the First Stiles-Crawford Effect: Experiment and Theory (2009) (0)
- Wavefront Sensing for Measuring the Stability of High-Power Laser Beams (2008) (0)
- Fundamentals of Corneal Cross Linking (2017) (0)
- NANOSTRUCTURE IMAGING VIA BULK SECOND-HARMONIC GENERATION (2005) (0)
- Guided Light Spectral Properties of Foveal and Parafoveal Cones (2010) (0)
- Solar Tracker Sensor Based on a Quadrant Optical Fiber Array (2015) (0)
- Corneal topography by specular reflection: Modal and zonal methods for surface reconstruction (2020) (0)
- New Arrangements for Waveguide-Based Wavefront Sensors (2015) (0)
- Retinal Simulator for Refractive Eye Models and Retinal Implants (2017) (0)
- Light Scattering Near a Phase-Conjugating Mirror (1996) (0)
- Sensing Wavefront Slopes using Intensity Gradients (2016) (0)
- Monitoring of O2 concentrations during Corneal Cross-Linking (CXL) by Phosphorescence Lifetime Imaging Microscopy (PLIM) (2016) (0)
- Non-Maxwellian characterization of the Stiles-Crawford effect by wavefront-projected tilt (2013) (0)
- 33 Confocal Scanning Retinal Imaging with Adaptive Optics (0)
- Revisiting the Stiles-Crawford effect in retinal imaging (2011) (0)
- Towards Wavefront Sensing with Metamaterials (2016) (0)
- Influence of Wavefront Slope on Effective Retinal Images Using a Spatial Light Modulator (2012) (0)
- Relationship between the sign of defocus and accommodation of the human eye (2018) (0)
- Confocal Signal-based Wavefront Sensing (2012) (0)
- Modeling Photoreceptor Imaging as Light Scattering by Arrayed Dipolar Antennas (2014) (0)
- An Analytical and Experimental Comparison of the Integrated Stiles-Crawford Effect of the First Kind (2019) (0)
- Confocal Scanning Retinal Imaging with Adaptive Optics (2005) (0)
- Second-Harmonic Microscopy with Annular Beams: Enhancement of Cornea Collagen Fibrils (2012) (0)
- Phase estimation in digital phase-shifting point diffraction interferometry using a virtual Hartmann-Shack wavefront sensor (2015) (0)
- Visual impact of interference gratings created with a liquid-crystal spatial light modulator (2011) (0)
- Publisher's Note: Comment on “Local Observations of Phase Singularities in Optical Fields in Waveguide Structures” [Phys. Rev. Lett. 87, 259401 (2001)] (2001) (0)
- Modeling high-resolution SLO and OCT retinal imaging using backscattering of light from elementary sources (2015) (0)
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