Results 11 to 20 of about 1,200,093 (137)

Single shot sub-micron lensless digital holographic microscopy

Journal of the European Optical Society-Rapid Publications
High-resolution lensless microscopy offers a compact and cost-effective alternative to traditional optical microscopy, with various applications such as biomedical imaging and wafer-level testing.
Battling André F., Bich Justin A., Bergmann Ralf B., Falldorf Claas   +3 more
doaj   +2 more sources

HoLLoApp: a reconstruction tool for high-throughput label-free complex-field imaging in lensless holographic microscopy

JPhys Photonics
Lensless holographic microscopy can produce large-field, label-free amplitude and quantitative phase measurements that are valuable for high-throughput technical and biomedical image analysis, but practical adoption is often limited by multi-step ...
Bartosz Górski, Mikołaj Rogalski, Emilia Wdowiak, Piotr Arcab, Kamil Kalinowski, Maciej Trusiak   +5 more
doaj   +2 more sources

Continuous Live-Cell Culture Monitoring by Compact Lensless LED Microscopes

Proceedings, 2018
A compact lensless microscope comprising a custom-made LED engine and a CMOS imaging sensor has been developed for live-cell culture imaging inside a cell incubator environment.
Gregor Scholz, Shinta Mariana, Iqbal Syamsu, Agus Budi Dharmawan, Torben Schulze, Kai Mattern, Philipp Hörmann, Jana Hartmann, Andreas Dietzel, Ingo Rustenbeck, Karsten Hiller, Joan Daniel Prades, Andreas Waag, Hutomo Suryo Wasisto   +13 more
doaj   +3 more sources

Simple concept for a wide-field lensless digital holographic microscope using a laser diode

Current Directions in Biomedical Engineering, 2015
Wide-field, lensless digital holographic microscopy is a new microscopic imaging technique for telemedicine and for resource limited setting [1]. In this contribution we propose a very simple wide-field lensless digital holographic microscope using a ...
Adinda-Ougba A., Koukourakis N., Gerhardt N. C., Hofmann M. R.   +3 more
doaj   +2 more sources

Low-intensity illumination for lensless digital holographic microscopy with minimized sample interaction. [PDF]

Biomed Opt Express, 2022
Exposure to laser light alters cell culture examination via optical microscopic imaging techniques, also based on label-free coherent digital holography. To mitigate this detrimental feature, researchers tend to use a broader spectrum and lower intensity
Mirecki B, Rogalski M, Arcab P, Rogujski P, Stanaszek L, Józwik M, Trusiak M.   +6 more
europepmc   +2 more sources

Off-axis digital lensless holographic microscopy based on spatially multiplexed interferometry. [PDF]

J Biomed Opt
Significance: Digital holographic microscopy (DHM) is a label-free microscopy technique that provides time-resolved quantitative phase imaging (QPI) by measur- ing the optical path delay of light induced by transparent biological samples. DHM has been
Picazo-Bueno JÁ, Ketelhut S, Schnekenburger J, Micó V, Kemper B.   +4 more
europepmc   +2 more sources

Speckle-Correlation Scattering Matrix Approaches for Imaging and Sensing through Turbidity

Sensors, 2020
The development of optical and computational techniques has enabled imaging without the need for traditional optical imaging systems. Modern lensless imaging techniques overcome several restrictions imposed by lenses, while preserving or even surpassing ...
YoonSeok Baek, KyeoReh Lee, Jeonghun Oh, YongKeun Park   +3 more
doaj   +1 more source

Interferometric Near‐Field Scanning Optical Microscopy via Phase Conjugation of a Multimode Fiber Probe [PDF]

Nanophotonics
A multimode fiber probe collects far more of the near field than a single‐mode one, but scrambles the phase into speckle. Phase conjugation on a spatial light modulator restores the wavefront, concentrating the signal up to 165‐fold at a single detector pixel and recovering the full phase of propagating surface plasmon polaritons where conventional ...
Oh J, Jin Y, Kang S, Kim M, Choi W.
europepmc   +2 more sources

Roadmap on Label‐Free Super‐Resolution Imaging

Laser &Photonics Reviews, Volume 17, Issue 12, December 2023., 2023
This Roadmap presents a comprehensive vision of developments in the field of nanoscale imaging of non‐fluorescent objects with a focus on methods allowing to overcome the classical diffraction limit. The scope of this Roadmap spans from diffraction‐limited interference detection techniques to super‐resolution methods based on information science ...
Vasily N. Astratov, Yair Ben Sahel, Yonina C. Eldar, Luzhe Huang, Aydogan Ozcan, Nikolay Zheludev, Junxiang Zhao, Zachary Burns, Zhaowei Liu, Evgenii Narimanov, Neha Goswami, Gabriel Popescu, Emanuel Pfitzner, Philipp Kukura, Yi‐Teng Hsiao, Chia‐Lung Hsieh, Brian Abbey, Alberto Diaspro, Aymeric LeGratiet, Paolo Bianchini, Natan T. Shaked, Bertrand Simon, Nicolas Verrier, Matthieu Debailleul, Olivier Haeberlé, Sheng Wang, Mengkun Liu, Yeran Bai, Ji‐Xin Cheng, Behjat S. Kariman, Katsumasa Fujita, Moshe Sinvani, Zeev Zalevsky, Xiangping Li, Guan‐Jie Huang, Shi‐Wei Chu, Omer Tzang, Dror Hershkovitz, Ori Cheshnovsky, Mikko J. Huttunen, Stefan G. Stanciu, Vera N. Smolyaninova, Igor I. Smolyaninov, Ulf Leonhardt, Sahar Sahebdivan, Zengbo Wang, Boris Luk'yanchuk, Limin Wu, Alexey V. Maslov, Boya Jin, Constantin R. Simovski, Stephane Perrin, Paul Montgomery, Sylvain Lecler   +53 more
wiley   +1 more source

Thickness and surface profiling of optically transparent and reflecting samples using lens-less self-referencing digital holographic microscopy

Applied Surface Science Advances, 2023
Thickness and surface profiling of transparent/semi-transparent specimens are vital in various applications, including electronics, optics, healthcare, and biotechnology. Surface profiling techniques characterize and analyze surface thickness, morphology,
Subhash Utadiya, Vismay Trivedi, Kevin Bhanderi, Mugdha Joglekar, Chaitanya Limberkar, Kireet Patel, Gyanendra Sheoran, Humberto Cabrera, Bahram Javidi, Arun Anand   +9 more
doaj   +1 more source