Leveraging wafer-level manufacturing process limitations to increase large scale fused silica microlens array uniformity

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Glass has been the material of choice for making optical elements, in large part due to its intrinsic properties: a temperature-dependent viscosity, which enables shaping the material into a broad variety of functional and artistic glassware. Silica glass ...

Fundamental properties of light unavoidably impose features on images collected using fluorescence microscopes. Accounting for these features is often critical in quantitatively interpreting microscopy images, especially those gathering information at scal ...

This work demonstrates the capabilities of an entangled photon-pair source at telecom wavelengths, based on a photonic integrated Si3N4 microresonator with monolithically integrated piezoelectric frequency tuning. Previously, frequency tuning of photon pai ...

The properties of signal strength and integrated intensity in a scanned imaging system are reviewed. These prop-erties are especially applied to confocal imaging systems, including image scanning microscopy. The integrated intensity, equal to the image of ...

Epsilon-near-zero (ENZ) materialshave attracted great interestdue to their exotic linear and nonlinear responses, which makes itsignificant to tune ENZ wavelengths for wavelength-dependent applications.However, studies to achieve tunability in a wide spect ...

The ability to control high-voltage actuator arrays relies, to date, on expensive microelectronic processes or on individual wiring of each actuator to a single off-chip high-voltage switch. Here we present an alternative approach that uses on-chip photoco ...

Non-linear materials are cornerstones of modern optics and electronics. Strong dependence on the intrinsic properties of particular materials, however, inhibits the at-will extension of demanding non-linear effects, especially those second-order ones, to w ...

The field of micro electromechanical systems (MEMS) evolved from the microelectronic industry and the technologies developed to fabricate integrated circuits. As a result, MEMS are commonly fabricated on silicon wafers. The development of MEMS has been dri ...

The present work deals with monochromatic wavefront aberrations in optical systems without symmetries. The treatment begins with a class of systems characterized by misaligned spherical surfaces whose behavior is analyzed using the wavefront aberration exp ...

PURPOSE: To determine and compare the origin of the external surface reflections produced by commonly used intraocular lenses (IOLs). ...

Structured light generation having broad applications in different optical fields, is the topic of this thesis. Our structured light generation strategy is based on applying periodic microoptical elements at the refraction-diffraction limit, under a focuse ...

Spectral imaging is a fundamental diagnostic technique with widespread application. Conventional spectral imaging approaches have intrinsic limitations on spatial and spectral resolutions due to the physical components they rely on. To overcome these physi ...

In order to enlarge the capability for in-plane manipulation of the Bloch surface wave (BSW), we investigate 2D gradient index (GRIN) optical components using a finite-difference time-domain (FDTD) numerical method. To ease difficulties in fabrication to a ...

In this paper, we illustrate the use of RF-sputtered p-NiO to fabricate Junction Termination Extensions (JTEs) for high-performance vertical GaN-on-Si Schottky Barrier Diodes (SBDs). The GaN epitaxial structures were grown on 6-inch Si wafers by MOCVD. The ...

During the fabrication process of microlenses, characterization is essential for two purposes: evaluate the optical quality of the element and provide surface information feedback for process optimization. However, no technique can fulfill these two object ...

Optical retrieval of the structure of transparent objects at the nano-scale requires adapted methods capable of probing their interaction with suitable light. Scattering events, for instance, depend on the content and the arrangement of the medium encounte ...

Despite the existence of various neural recording and mapping techniques, there is an open territory for the emergence of novel techniques. The current neural imaging and recording techniques suffer from invasiveness, a time-consuming labeling process, poo ...

Knowledge of lens specifications is important to identify the best lens for a given capture scenario and application. Lens manufacturers provide many specifications in their data sheets, and multiple initiatives for testing and comparing different lenses c ...

We present an aspect ratio dependent etching (ARDE) method, utilizing the Bosch dry etching process of silicon, to create the optimal silicon master microstructures for replication of polydimethylsiloxane (PDMS) microchannels that allow immobilizing C. ele ...

Accurate characterization of high numerical aperture aspheric microlenses currently is a nonstandard procedure that remains an open challenge. Here, we present and discuss a characterization method based on interferometric and point spread function measure ...

Leveraging wafer-level manufacturing process limitations to increase large scale fused silica microlens array uniformity

Chattez avec Graph Search

Laser-based manufacturing of freeform glass micro-optics through topological transformation

Fluorescence microscopy: A statistics-optics perspective

Integrated photon-pair source with monolithic piezoelectric frequency tunability

Signal strength and integrated intensity in confocal and image scanning microscopy

Manufacturing-Enabled Tunability of Linear and Nonlinear Epsilon-Near-Zero Properties in Indium Tin Oxide Nanofilms

Dynamic control of high-voltage actuator arrays by light-pattern projection on photoconductive switches

A universal route to efficient non-linear response via Thomson scattering in linear solids

A new versatile hybrid MEMS technology for high sensitivity, fluid proof sensing applications

ON WAVEFRONT ABERRATIONS IN ASYMMETRIC AND MULTIPLE APERTURE OPTICAL SYSTEMS

Intraocular Lens Refractive Index and Its Impact on External Surface Reflections

Structured light generation by refractive-diffractive micro optical array illuminators

High-Resolution Multi-Spectral Imaging With Diffractive Lenses and Learned Reconstruction

Stepwise Luneburg Lens for Bloch Surface Waves

p-NiO Junction Termination Extensions for High Voltage Vertical GaN Devices

Assessing microlens quality based on 3D irradiance measurement at the focal spot area

Phase calibration of a basic bright-field microscope for 3D metrology of transparent samples at the nanoscale

Membrane activity detection in cultured cells using phase-sensitive plasmonics

AAM: An Assessment Metric of Axial Chromatic Aberration

Variable-height microfluidic channels for accurate immobilization of C. elegans worms by using a single dry etching step

Optical characterization of high numerical aperture microlenses for quality assessment and fabrication process optimization