Fundamentals of Biological Nonlinear Imaging from Nonlinear Optical Scattering
Event details
| Date | 21.05.2012 |
| Hour | 12:15 |
| Speaker | Prof. Jerry I. Dadap, Columbia University |
| Location |
SV1717a
|
| Category | Conferences - Seminars |
In the past decades many new types of linear and nonlinear optical techniques have become beneficial to biological research. Techniques such as second harmonic generation (SHG), sum frequency generation (SFG), coherent anti stokes raman scattering (CARS) have been developed and applied to biomedical research. These methods rely on fundamental light scattering processes that in principle contain information about many detailed aspects of the system under study. The development of the theory of optical second-order nonlinear optical scattering from particles and structures comprised of centrosymmetric and non-centrosymmetric media is presented. Such theoretical framework is essential to the understanding of coherent second order optical imaging from endogenous biological structures. We begin by describing nonlinear scattering from simple shapes such as spheres and cylinders. Nonlinear scattering from arbitrarily shaped particles is then presented within the limit of low index of refraction contrast. Within this approximation, light scattering can be described by a finite set of nonlinear form factors that obey a certain set of selection rules.
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Practical information
- General public
- Free
Organizer
- Sylvie Roke
Contact
- Dietrich Reinhard