Dynamic Speckle Holography
| Autor: | David A. Weitz, L. Xiao, M. Sabato, Stefano Aime |
|---|---|
| Přispěvatelé: | Chimie Moléculaire, Macromoléculaire et Matériaux (UMR7167) (C3M), Centre National de la Recherche Scientifique (CNRS)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC), Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), Harvard University [Cambridge], University of Chicago, China University of Petroleum |
| Rok vydání: | 2021 |
| Předmět: |
Field (physics)
Holography Measure (physics) General Physics and Astronomy 02 engineering and technology 01 natural sciences law.invention Speckle pattern Optics law 0103 physical sciences [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] Sensitivity (control systems) 010306 general physics Dynamic speckle Physics [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] business.industry Scattering 021001 nanoscience & nanotechnology [CHIM.POLY]Chemical Sciences/Polymers Fracture (geology) 0210 nano-technology business [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 2021, 127 (8), pp.088003. ⟨10.1103/PhysRevLett.127.088003⟩ |
| ISSN: | 1079-7114 0031-9007 |
| Popis: | International audience; We introduce Dynamic Speckle Holography (DSH), a new technique that combines imaging and scattering to measure three dimensional maps of displacements as small as ten nanometers over several centimeters, greatly extending the capabilities of traditional imaging systems. We attain this sensitivity by imaging speckle patterns of light collected at three scattering angles and measuring the decay in the temporal correlation due to local motion. We use DSH to measure the strain field of a colloidal gel undergoing fracture and establish the surprising role of internal tension in driving the fracture. |
| Databáze: | OpenAIRE |
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