Results 71 to 80 of about 3,717 (174)

Advances in Optical Metrology: High-Bandwidth Digital Holography for Transparent Objects Analysis

Photonics
Accurate and non-invasive optical metrology of transparent objects is essential in several commercial and research applications, from fluid dynamics to biomedical imaging.
Manoj Kumar, Lavlesh Pensia, Karmjit Kaur, Raj Kumar, Yasuhiro Awatsuji, Osamu Matoba   +5 more
doaj   +1 more source

Lensless single-shot dual-wavelength digital holography with sub-pixel resolution and centimeter depth range [PDF]

APL Photonics
Lensless single-shot dual-wavelength digital holography is resolution limited by the pixel-size of the camera and often has an insufficient depth range.
Huangcheng Shangguan, H. Paul Urbach, Jeroen Kalkman   +2 more
doaj   +1 more source

Crack Detection by Optical Voice Recorder Based on Digital Holography

Photonic Sensors, 2019
The detection of crack on materials is an important issue in industry. On the contrary to conventional methods, such as manual inspection, sensor detection, and image processing techniques, a new simple method to detect the crack is proposed with optical
Gülhan Ustabaş Kaya, Zehra Saraç
doaj   +1 more source

Lensless white light interferometry based on digital holography using supercontinuum lasers [PDF]

EPJ Web of Conferences
This work presents a novel method for lensless white light interferometry (WLI) based on digital holography. The lensless design enables compact, lightweight measurement systems that require fewer individual images, thereby significantly reducing ...
Bich Justin A., Bergmann Ralf B., Falldorf Claas   +2 more
doaj   +1 more source

Strain Measurement Using Phase-shifting Digital Holography with Two Cameras

EPJ Web of Conferences, 2010
Phase-shifting digital holography is a convenient method to measure displacement and strain distributions. Development of compact and conventional strain distribution measurement equipment for practical use is required for inspection of health monitoring
Morimoto Y., Nishitani R., Fujigaki M.
doaj   +1 more source

In Situ Holographic Monitoring of Stress Corrosion Dynamics of Alloy 625 in Cl⁻ + S₂O₃²⁻ Solution

Molecules
This study examined the stress corrosion of Alloy 625 in Cl− + S2O32− solutions using digital holography in combination with electrochemical methods. Without elastic tensile stress, intergranular corrosion (IGC) occurred, due to the higher activity of ...
Pengyu Yang, Yunzhou Gu, Fuli Wu, Boyu Yuan, Liang Li, Chao Wang   +5 more
doaj   +1 more source

Optimizing self-interference digital holography for single-molecule localization. [PDF]

Opt Express, 2023
Li S, Kner PA.
europepmc   +1 more source

Adaptive constraints by morphological operations for single-shot digital holography. [PDF]

Sci Rep, 2023
Xu D, Huang Z, Cao L.
europepmc   +1 more source

Ultrafast 3D nanofabrication via digital holography. [PDF]

Nat Commun, 2023
Ouyang W, Xu X, Lu W, Zhao N, Han F, Chen SC.   +5 more
europepmc   +1 more source

Incoherent Digital Holography Empowered by Wavefront and Information Engineering: A Review

Advanced Photonics Research
Incoherent digital holography (IDH) is a technique used to create holograms with a spatially incoherent light source. This technique has unlocked the potential of holography and expanded its applications to 3D fluorescence microscopy and 3D imaging under
Teruyoshi Nobukawa
doaj   +1 more source