Imaging light transport at the femtosecond scale : a walk on the wild side of diffusion / Lorenzo Pattelli.

Format:

Book

Author/Creator:

Pattelli, Lorenzo, author.

Series:

Premio Tesi di dottorato.

Premio Tesi di dottorato

Language:

English

Subjects (All):

Mathematical physics--Problems, exercises, etc.

Mathematical physics.

Mathematical physics--Data processing.

Physical Description:

1 online resource (150 pages).

Other Title:

Imaging light transport at the femtosecond scale

Place of Publication:

Florence : Firenze University Press, 2018.

Summary:

Paper, milk, clouds and white paint share a common property: they are opaque disordered media through which light scatters randomly rather than propagating in a straight path. For very thick and turbid media, indeed, light eventually propagates in a 'diffusive' way, i.e. similarly to how tea infuses through hot water. Frequently though, a material is neither perfectly opaque nor transparent and the simple diffusion model does not hold. In this work, we developed a novel optical-gating setup that allowed us to observe light transport in scattering media with sub-ps time resolution. An array of unexplored aspects of light propagation emerged from this spatio-temporal description, unveiling transport regimes that were previously inaccessibile due to the extreme time scales involved and the lack of analytical models.

Notes:

Description based on publisher supplied metadata and other sources.