Overview on the development and critical issues of water jet guided laser machining technology

Y Liu, M Wei, T Zhang, H Qiao, H Li - Optics & Laser Technology, 2021 - Elsevier
There was no established literature or documentation regarding this due to the competition
for the market and confidentiality issues. This article reviews the current status of waterjet …

[图书][B] Analytical lens design

RG González-Acuña, HA Chaparro-Romo… - 2020 - iopscience.iop.org
This book presents an in-depth look at lenses free of spherical aberrations and is provided
using illustrative examples. Mathematical principles behind lenses free of spherical …

Fabrication of optical components using a consumer-grade lithographic printer

GD Berglund, TS Tkaczyk - Optics Express, 2019 - opg.optica.org
The ability to 3D print optical elements will greatly expand the accessibility of optical
fabrication. Here, we report on two fabrication techniques for plano-convex lens files using a …

Towards 30% power conversion efficiency in thin-silicon photonic-crystal solar cells

S Bhattacharya, I Baydoun, M Lin, S John - Physical Review Applied, 2019 - APS
By direct numerical solution of Maxwell's equations and the semiconductor drift-diffusion
equations, we demonstrate solar-power conversion efficiencies in the 29%–30% range in …

Photonic crystal light trapping: Beyond 30% conversion efficiency for silicon photovoltaics

S Bhattacharya, S John - APL photonics, 2020 - pubs.aip.org
The power conversion efficiency of single-junction silicon solar cells has increased only by
1.5% despite extensive efforts over the past two decades. The current world-record …

Solar light trapping in slanted conical-pore photonic crystals: Beyond statistical ray trapping

S Eyderman, S John, A Deinega - Journal of Applied Physics, 2013 - pubs.aip.org
We demonstrate that with only 1 μm, equivalent bulk thickness, of crystalline silicon, sculpted
into the form of a slanted conical-pore photonic crystal and placed on a silver back-reflector …

Quantitative evaluation of performance of three-dimensional printed lenses

J Gawedzinski, ME Pawlowski… - Optical …, 2017 - spiedigitallibrary.org
We present an analysis of the shape, surface quality, and imaging capabilities of custom
three-dimensional (3-D) printed lenses. 3-D printing technology enables lens prototypes to …

Prediction of surface profile evolution of workpiece and lapping plate in lapping process

Z Geng, P Zhou, L Meng, Y Yan… - Journal of …, 2022 - asmedigitalcollection.asme.org
Lapping has a history of hundreds of years, yet it still relies on the experience of workers. To
improve the automaticity and controllability of the lapping process, a modeling method of …

Two-step phase-shifting fringe projection profilometry: intensity derivative approach

F Yang, X He - Applied optics, 2007 - opg.optica.org
A new two-step phase-shifting fringe projection profilometry is proposed. The slowly variable
background intensity of fringe patterns is removed by the use of an intensity differential …

A tunable Shack–Hartmann wavefront sensor based on a liquid-filled microlens array

Y Hongbin, Z Guangya, CF Siong… - Journal of …, 2008 - iopscience.iop.org
A novel design concept for a Shack–Hartmann sensor is presented. A liquid-filled microlens
array is used to replace the commonly used microlens array with fixed focal length in a …