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861
Near-infrared Flux Distribution of Sgr A* from 2005–2022: Evidence for an Enhanced Accretion Episode in 2019
Published 2023-01-01“…We present light curves from 69 observation epochs using the NIRC2 imager at 2.12 μ m with laser-guide star adaptive optics. These observations reveal that the mean luminosity of Sgr A* increased by a factor of ∼3 in 2019, and the 2019 light curves had higher variance than in all time periods we examined. …”
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Article -
862
The Giant Accreting Protoplanet Survey (GAPlanetS): Optimization Techniques for Robust Detections of Protoplanets
Published 2023-01-01“…In this work, we present a new, systematic approach to optimization vetted using data of the high-contrast stellar companion HD 142527 B from the Magellan Adaptive Optics Giant Accreting Protoplanet Survey (GAPlanetS). …”
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Article -
863
Microvascular Structural Alterations in Cancer Patients Treated With Antiangiogenic Drugs
Published 2021-03-01“…Basal and total capillary density were assessed by capillaroscopy whereas, retinal arteriole morphology was measured by Adaptive Optics. Patients were evaluated before starting the antiangiogenic therapy (T0) and re-evaluated after 3 (T3) and 6 (T6) months after treatment. …”
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Article -
864
Graphene Channel Electron-Multiplying Charge-Coupled Pixel
Published 2023-01-01“…The presented technique paves the way for futuristic sinusoidally-driven graphene-silicon-based electron-multiplying CCDs with low-power surveillance and adaptive optics applications.…”
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Article -
865
The retinal mosaic, eye movements and colour vision
Published 2020“…</p> <p>Until recently, information about the human cone mosaic could only come from histology, but the introduction of adaptive optics (AO) technology to retinal imaging has revolutionised our ability to investigate living, seeing human retinae at high resolution. …”
Thesis -
866
JWST Observations of the Enigmatic Y-Dwarf WISE 1828+2650. I. Limits to a Binary Companion
Published 2023-01-01“…This article describes JWST/NIRCam observations of WISE 1828+2650 in six filters to address the binarity question and to provide new photometry to be used in model fitting. We also report adaptive optics imaging with the Keck I0 m telescope. …”
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Article -
867
The Giant Accreting Protoplanet Survey (GAPlanetS)—Results from a 6 yr Campaign to Image Accreting Protoplanets
Published 2023-01-01“…We report results from the Giant Accreting Protoplanet Survey (GAPlanetS), which collected H α differential imagery of 14 transitional disk host stars with the Magellan Adaptive Optics System. To address the twin challenges of morphological complexity and point-spread function instability, GAPlanetS required novel approaches for frame selection and optimization of the Karhounen–Loéve Image Processing algorithm pyKLIP . …”
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868
Extending depth range of optical coherence tomography
Published 2020“…For hardware approaches, such as wavefront modification and adaptive optics, the rise in system complexity is always a problem. …”
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Thesis-Doctor of Philosophy -
869
Structural and Functional Changes in Non-Paraneoplastic Autoimmune Retinopathy
Published 2023-11-01“…Multiple diagnostic modalities such as wide-angle fundus photography (WAFP), WA fundus autofluorescence (WAFAF), spectral-domain optical coherence tomography (SD-OCT), Goldmann visual field (GVF) perimetry, microperimetry (MP), electrophysiologic testing, and adaptive optics scanning laser ophthalmoscopy (AOSLO) were reviewed and analyzed. …”
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Article -
870
Separated Twins or Just Siblings? A Multiplanet System around an M Dwarf Including a Cool Sub-Neptune
Published 2023-01-01“…Reconnaissance radial velocity measurements (taken with EULER/CORALIE and SMARTS/CHIRON) and high-resolution speckle imaging with adaptive optics (obtained from SOAR/HRCAM and Gemini South/ZORRO) show no evidence of an eclipsing binary or a nearby companion, which, together with the low false-positive probabilities calculated with the statistical validation software TRICERATOPS, establishes the planetary nature of these candidates. …”
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Article -
871
OGLE-2019-BLG-1180Lb: Discovery of a Wide-orbit Jupiter-mass Planet around a Late-type Star
Published 2023-01-01“…At that time one can measure the lens flux from adaptive optics imaging of Keck or a next-generation 30 m class telescope. …”
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Article -
872
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873
Adaptive harmonic generation microscopy of mammalian embryos.
Published 2009“…Adaptive optics is implemented in a harmonic generation microscope using a wavefront sensorless correction scheme. …”
Journal article -
874
Smart lighting system with tunable radiation pattern
Published 2023-01-01“…Such functionality can be achieved with adaptive optical systems, which consist of one or multiple adjustable components, enabling illumination with a variable radiation pattern. …”
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Article -
875
Impact of Pupil Aberrations on Wavefront Manipulation
Published 2021-01-01“…A systematic and quantitative analysis is given of the impact of pupil aberrations on the imaging performance in wavefront manipulation applications using adaptive optical elements. For the practical case of rotationally-symmetric types of wavefront corrections, such as defocus or spherical aberration, analytical expressions of the induced aberrations are derived including their pupil and field dependence. …”
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Article -
876
Rapid Detection of Benzo[a]pyrene in Extra Virgin Olive Oil Using Fluorescence Spectroscopy
Published 2023-05-01“…This work aims to detect benzo[a]pyrene residues in EVOO using an easily adaptive optical methodology. This approach, which is based on fluorescence spectroscopy, does not require any sample pretreatment or prior extraction of PAH content from the sample, and is reported for the first time herein. …”
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Article -
877
UV Durable LCOS for Laser Processing
Published 2021-08-01“…Liquid-Crystal-On-Silicon (LCOS) Spatial Light Modulator (SLM) is widely used as a programmable adaptive optical element in many laser processing applications with various wavelength light sources. …”
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Article -
878
Component-wise testing of laser written integrated coupled mode beam splitters
Published 2019“…The method is based on the imaging of an individual IBS with a custom-built multifunctional adaptive optical microscope, combined with the calculation of its beam-splitting ratio through numerical modelling.…”
Journal article -
879
A Novel Optical Vector Spectral Analysis Technique Employing a Limited-Bandwidth Detector
Published 2005-01-01“…This technique has application to optical monitoring of intersymbol interference distortions, including chromatic and polarization-mode dispersion effects, and thus can provide vector information for input to the control of adaptive optical filters. A method for generating a test signal spanning the spectrum of a modulated data signal without introducing intersymbol interference is discussed. …”
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Article -
880
Wavefront control in adaptive microscopy using Shack-Hartmann sensors with arbitrarily shaped pupils
Published 2018“…In adaptive optical microscopy of thick biological tissue, strong scattering and aberrations can change the effective pupil shape by rendering some Shack-Hartmann spots unusable. …”
Journal article