Simulation of spectral confocal microscopy system DOI

Haiqi Li,

Jun Zhang,

Zhe Chen

et al.

Published: July 26, 2022

As a kind of non-contact displacement sensor modulated by wavelength, spectral confocal microscopy system has high measurement accuracy and is insensitive to object tilt surface texture, strong anti-stray light ability, which makes it become hotspot current research. The traditional uses wide-spectrum source illuminate the pinhole dispersion objective lens generate on one side measured object. focuses different wavelengths at positions optical axis, converts information into wavelength information, detects reflected CCD industrial camera or spectrometer determine peak focused surface, Thus, axial distance be obtained. In this paper, based analysis microscopic system, linear was designed. 3.228mm achieved in range 450nm 650nm, determination coefficient between greater than R2=0.9859.On basis, dual-optical path detection structure edge By adding three impurity filters filter stray except target results show that new sensitivity, small anti-interference ability.

Language: Английский

Reconfigurable scan lens based on an actively controlled optical phased array DOI
Sheng-I Kuo,

Ju-Wei Wang,

Zohauddin Ahmad

et al.

Optics Letters, Journal Year: 2022, Volume and Issue: 47(15), P. 3676 - 3676

Published: June 27, 2022

Integrated photonics provides a path for miniaturization of an optical system to compact chip scale and offers reconfigurability by the integration active components. Here we report chip-scale reconfigurable scan lens based on phased array, consisting 30 actively controlled elements InP integrated photonic platform. By configuring phase shifters, show scanning nearly diffraction-limited focused spot with full width at half maximum size down 2.7 µm wavelength 1550 nm. We demonstrate key functions needed laser-scanning microscope, including light focusing, collection, steering. also perform confocal measurements detect reflection selective depths.

Language: Английский

Citations

2

Fast measurement method of defocused differential correlation-confocal microscopy DOI

Rongji Li,

Han Ma,

Angze Li

et al.

Measurement, Journal Year: 2022, Volume and Issue: 206, P. 112271 - 112271

Published: Nov. 28, 2022

Language: Английский

Citations

2

Imaging of nanoscale birefringence using polarization-resolved chromatic confocal microscopy DOI Creative Commons
Ming‐Che Chan,

Tzu Hsin Liao,

Chi-Sheng Hsieh

et al.

Optics Express, Journal Year: 2021, Volume and Issue: 29(3), P. 3965 - 3965

Published: Jan. 14, 2021

We demonstrate a homebuilt confocal microscope with ∼60 nm axial resolution to visualize the optical path length (OPL) of liquid crystals (LCs) inside 2-domain alignment LC cell. Since is sensitive light polarization, it capable determining orientation by accounting for OPL variation, ΔOPL. The birefringence depends on measured ΔOPL from two cross-polarized channel detections, which concept different other polarization-resolved imaging techniques, but relatively simple in layout and analysis. orientations LCs voltage-dependent rotation properties cell are monitored analyzed. Additionally, complicated distribution at junction domains alignments can be clearly observed. It shows great possibilities examining tissue related disease progression tiny variation electro-optical materials under an external field, hardly resolved conventional techniques.

Language: Английский

Citations

2

Time encoded chromatic confocal microscopy for wide field 3 D surface profiling DOI
Se Jin Park, Hansol Jang, Chang‐Seok Kim

et al.

Published: July 22, 2019

We propose a fast surface profiling measurement method using color confocal microscope based on time-encoded spectroscopy. The chromatic microscopy can acquire depth information at high speed because it does not require scanning. On the other hand, in microscopy, is obtained through wavelength of reflected light, which difficult for wide field imaging. By applying time encoded spectroscopy technology, be light. As result, we could obtain 3D shape without scanning by measuring light CCD over time.

Language: Английский

Citations

1

Non-invasive probing of dynamic ion migration in light-emitting electrochemical cells by an advanced nanoscale confocal microscope DOI Creative Commons
Wei-Shiuan Tseng,

Chi-Sheng Hsieh,

Ming‐Che Chan

et al.

Optics Express, Journal Year: 2022, Volume and Issue: 30(16), P. 28817 - 28817

Published: July 15, 2022

In this study, we firstly propose an optical approach to investigate the ion profile of organic films in light-emitting electrochemical cells (LECs) without any invasive sputtering processes. contrast previous literatures, pure strategy allows us record clear and non-destructive images (Ru(dtb-bpy)3(PF6)2) consisted layer interferences complex collisions from bombardment secondary sputter induced ions a conventional time-of-flight mass spectrometry. By using advanced position sensitive detector (PSD)-based Nanoscale Confocal Microscope, distribution profiles were successfully acquired based on observation nanoscale path length difference by measuring refractive-index variation while thickness LEC was fixed. Dynamic time-dependent displayed migration process under 100 V applied bias at two ends LEC. This technique opens up new avenue towards future investigations distributions inside organic/inorganic materials, Li-ion batteries, or micro-fluid channels damaging materials disturbing device operation.

Language: Английский

Citations

1

Advanced confocal microscopy for rapid nanoscale topography of surfaces DOI

Chi-Sheng Hsieh,

Guan‐Yu Zhuo, Ming‐Che Chan

et al.

Published: Jan. 1, 2019

An advanced confocal microscope with nanoscale depth resolutions and the capability for rapid capture of 3D surface topography was presented. The proposed shows great promise optical testing electronic or photonic elements.

Language: Английский

Citations

0

A multi-emitter ultrasonic flatness detecting device DOI
Wenjie Mu, Zhen Yan, Lingxiao Shen

et al.

Applied Acoustics, Journal Year: 2020, Volume and Issue: 167, P. 107414 - 107414

Published: May 8, 2020

Language: Английский

Citations

0

Simulation of spectral confocal microscopy system DOI

Haiqi Li,

Jun Zhang,

Zhe Chen

et al.

Published: July 26, 2022

As a kind of non-contact displacement sensor modulated by wavelength, spectral confocal microscopy system has high measurement accuracy and is insensitive to object tilt surface texture, strong anti-stray light ability, which makes it become hotspot current research. The traditional uses wide-spectrum source illuminate the pinhole dispersion objective lens generate on one side measured object. focuses different wavelengths at positions optical axis, converts information into wavelength information, detects reflected CCD industrial camera or spectrometer determine peak focused surface, Thus, axial distance be obtained. In this paper, based analysis microscopic system, linear was designed. 3.228mm achieved in range 450nm 650nm, determination coefficient between greater than R2=0.9859.On basis, dual-optical path detection structure edge By adding three impurity filters filter stray except target results show that new sensitivity, small anti-interference ability.

Language: Английский

Citations

0