Sub-100-nm precision distance measurement by means of all-fiber photonic microwave mixing
The importance of dimensional metrology has gradually emerged from fundamental
research to high-technology industries. In the era of the fourth industrial revolution, absolute …
research to high-technology industries. In the era of the fourth industrial revolution, absolute …
Full C-band wavelength-tunable, 250 MHz repetition rate mode-locked polarization-maintaining fiber laser
We demonstrate a full C-band wavelength-tunable mode-locked fiber laser with a repetition
rate of 250 MHz, representing the highest repetition rate for C-band tunable mode-locked …
rate of 250 MHz, representing the highest repetition rate for C-band tunable mode-locked …
Synthetic wavelength holography: An extension of Gabor's holographic principle to imaging with scattered wavefronts
The presence of a scattering medium in the imaging path between an object and an
observer is known to severely limit the visual acuity of the imaging system. We present an …
observer is known to severely limit the visual acuity of the imaging system. We present an …
Synthetic Wavelength Imaging: Utilizing Spectral Correlations for High-Precision Time-of-Flight Sensing
F Willomitzer - … for Scene Understanding: Transient, Spectral, and …, 2024 - books.google.com
Optical three-dimensional (3D) imaging and ranging techniques have been used in
academia and industry for many years with great success. Fields of application include …
academia and industry for many years with great success. Fields of application include …
Calibration of a step height standard for dimensional metrology using phase-shift interferometry and Hamming window: band-pass filter
DGA Ibrahim - Journal of Optics, 2024 - Springer
In this paper, asynchronous dual-wavelength phase-shift interferometry is used to calibrate a
line structure of a step height of 400 mm nominally standard based on the ISO 5436 profile …
line structure of a step height of 400 mm nominally standard based on the ISO 5436 profile …
[PDF][PDF] 基于光学频率梳的表面形貌测量方法
吴冠豪， 施立恒， 李尔格 - Laser & Optoelectronics Progress, 2023 - researching.cn
摘要表面形貌检测是工业生产和科学研究所需的关键技术之一, 高精度和高效率是该领域一直
以来的发展方向. 光学频率梳有着独特宽光谱, 窄线宽和稳定频率的特性 …
以来的发展方向. 光学频率梳有着独特宽光谱, 窄线宽和稳定频率的特性 …
Erythrocyte volumetric measurements in imaging flow cytometry using simultaneous three-wavelength digital holographic microscopy
We report a cross-talk free simultaneous three-wavelength digital holographic microscopy
setup for spectroscopic imaging of biological cells during flow. The feasibility of the …
setup for spectroscopic imaging of biological cells during flow. The feasibility of the …
Simultaneous dual-wavelength digital holographic microscopy with compensation of chromatic aberration for accurate surface characterization
DGA Ibrahim - Applied Optics, 2019 - opg.optica.org
In this paper, a simultaneous dual-wavelength digital holographic microscope with
compensation of chromatic aberration is presented. The microscope has been used to …
compensation of chromatic aberration is presented. The microscope has been used to …
Nanometer-precision surface metrology of millimeter-sized stepped objects using full-cascade-linked synthetic-wavelength digital holography using a line-by-line full …
E Hase, Y Tokizane, K Sadahiro, T Minamikawa… - Optics …, 2023 - opg.optica.org
Digital holography (DH) is a powerful tool for the surface profilometry of objects with sub-
wavelength precision. In this article, we demonstrate full-cascade-linked synthetic …
wavelength precision. In this article, we demonstrate full-cascade-linked synthetic …
Estimation of an uncertainty budget and performance measurement for a dual‐wavelength Twyman‐Green interferometer
DGA Ibrahim - Journal of Microscopy, 2021 - Wiley Online Library
In this paper, the uncertainty budget from 10 sources we claim they have direct impact on
measurement is estimated. The measurement has been applied to nominal step heights of …
measurement is estimated. The measurement has been applied to nominal step heights of …