<title>Accuracy preserving methods for faster measurements with dynamic light scattering and diffusing wave spectroscopy</title>

Diffusing-wave spectroscopy: dynamic light scattering in the multiple scattering limit

Journal de Physique ◽

10.1051/jphys:0199000510180210100 ◽

1990 ◽

Vol 51 (18) ◽

pp. 2101-2127 ◽

Cited By ~ 214

Author(s):

D.J. Pine ◽

D.A. Weitz ◽

J.X. Zhu ◽

E. Herbolzheimer

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Multiple Scattering ◽

Diffusing Wave Spectroscopy

Download Full-text

Path-length-resolved dynamic light scattering in highly scattering random media: The transition to diffusing wave spectroscopy

Physical Review E ◽

10.1103/physreve.58.7664 ◽

1998 ◽

Vol 58 (6) ◽

pp. 7664-7667 ◽

Cited By ~ 84

Author(s):

Kostadinka K. Bizheva ◽

Andy M. Siegel ◽

David A. Boas

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Path Length ◽

Random Media ◽

Diffusing Wave Spectroscopy

Download Full-text

Light scattering microrheology

10.1093/oso/9780199655205.003.0005 ◽

2018 ◽

Author(s):

Eric M. Furst ◽

Todd M. Squires

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Best Practices ◽

High Frequency ◽

Polymer Dynamics ◽

Diffusing Wave Spectroscopy ◽

Established Method ◽

Optical Mixing ◽

Multiple Particle Tracking ◽

Multiple Particle

The fundamentals and best practices of passive microrheology using dynamic light scattering and diffusing wave spectroscopy are discussed. The principles of light scattering are introduced and applied in both the single and multiple scattering regimes, including derivations of the light and field autocorrelation functions. Applications to high-frequency microrheology and polymer dynamics are presented, including inertial corrections. Methods to treat gels and other non-ergodic samples, including multi-speckle and optical mixing designs are discussed. Dynamic light scattering (DLS) is a well established method for measuring the motion of colloids, proteins and macromolecules. Light scattering has several advantages for microrheology, especially given the availability of commercial instruments, the relatively large sample volumes that average over many probes, and the sensitivity of the measurement to small particle displacements, which can extend the range of length and timescales probed beyond those typically accessed by the methods of multiple particle tracking and bulk rheology.

Download Full-text