Surface-plasmon-based wavefront sensing

Vohnsen, Brian; Valente, Denise

doi:10.1364/optica.2.001024

Cited by 18 publications

(10 citation statements)

References 14 publications

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“…Using a 2D detector, SPR imaging provides the spatial distribution of refractive index of a sample using a contrast measurement at a single wavelength. SPR imaging has numerous applications in biology [8], can be implemented with phase retrieval [9], and was recently demonstrated to be used for wavefront sensing [10].…”

Section: Introductionmentioning

confidence: 99%

Direct imaging of surface plasmon polariton dispersion in gold and silver thin films

et al. 2016

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We image the dispersion of surface plasmon polaritons in gold and silver thin films of 30 nm and 50 nm thickness, using angle-resolved white light spectroscopy in the Kretschmann geometry. Calibrated dispersion curves are obtained over a wavelength range spanning from 550 nm to 900 nm. We obtain good qualitative agreement with calculated dispersion curves that take into account the thickness of the thin film.

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Section: Introductionmentioning

confidence: 99%

Direct imaging of surface plasmon polariton dispersion in gold and silver thin films

et al. 2016

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“…Dessen Signal wird dann in einem Regelkreis kontinuierlich als Stellgröße (close loop) oder diskontinuierlich als Korrektursignal (open loop) benutzt [12]. In einem kürzlich vorgestellten Verfahren kann alternativ Oberflächen-Plasmon-Anregung ausgenutzt werden, um Wellenfrontfehler im Strahl durch einen CCD-Sensor (CCD: charged coupled device) mit höchster Abtastrate zu detektieren [13]. In sensorfreien Korrekturmethoden wird das Korrektursignal für das kompensatorische Element direkt aus der Optimierung des aufgenommenen Bildmaterials algorithmisch ermittelt [14].…”

Section: Materials Und Methodenunclassified

Adaptive Optiken – Möglichkeiten für die Diagnostik hereditärer Netzhauterkrankungen

Reiniger

Domdei

Pfau

et al. 2017

Klin Monatsbl Augenheilkd

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The use of adaptive optics in ophthalmoscopy is a breakthrough technological achievement. With AO ophthalmoscopes, the microscopic retinal structure can be visualised non-invasively and on a cellular level, allowing for cellular scale imaging of the retinal nerve fibre layer, the smallest retinal capillaries, rod and cone photoreceptors, and the retinal pigment epithelium mosaic in the living subject. Regarding the diagnostic evaluation of retinal diseases, the current research focuses on monogenetic retinal diseases, which - when better understood - may allow for conclusions to be drawn about other multifactorial diseases and their underlying mechanisms (model disease). For disease monitoring and current and future pharmacological intervention (e.g. gene therapy), they will help to better establish novel and reliable clinical endpoints. New AO imaging devices have just become commercially available, and the number of retinal pathologies visualised with AO is increasing. Recently, an AO-based microstimulation technique has been introduced, which offers the possibility to directly correlate retinal structure with visual function on a cellular level.

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“…This error signal can be used to drive the corrective elements of a deformable mirror or light modulator to create a compensatory wavefront shape, either in a continuous closed-loop fashion, or discontinuous open-looped mode with repeated measurements [46]. Ocular wavefronts can also be measured via surface plasmon excitation with a pair of highly sensitive CCD sensors [47]. There are also sensorless methods, where wavefront corrections are emplaced directly from the acquired retinal image quality in an iterative algorithmic process [48].…”

Section: Monochromatic Aberration Correctionmentioning

confidence: 99%