Personal tools
You are here: Home Administration Physics Department Events 2018 January Photonics Seminar, Jason Fleischer, "Spatial dynamics of nonlinear and quantum imaging"

Photonics Seminar, Jason Fleischer, "Spatial dynamics of nonlinear and quantum imaging"

Filed under:
Photonics Seminar, Jason Fleischer, "Spatial dynamics of nonlinear and quantum imaging"
When Jan 23, 2018
from 10:00 AM to 11:00 AM
Where ASRC Auditorium
Contact Name
Contact Phone (212)650-7443
Add event to calendar vCal
iCal

PHOTONICS SEMINAR: JASON FLEISCHER, PRINCETON UNIVERSITY

•    Title: "Spatial dynamics of nonlinear and quantum imaging"
•    Speaker: Jason Fleischer, Princeton University
•    Abstract:  All limitations commonly associated with imaging, such as resolution, field of view, and depth of field, arise from classical linear theory. Nonlinear and quantum optics can break these limits by exploiting the presence and interaction of many photons at once. To date, nearly all multi-photon techniques have relied on point processes, such as two-photon fluorescence or coincidence measurements, that ignore the spatial content of the object and require scanning to record a whole image. Here, we introduce spatial nonlinearity as a new degree of freedom for imaging. We take a system-wide approach, so that knowledge of the nonlinear wave mixing gets transferred to “extra” information about the object. We formalize this transfer theoretically by generalizing Abbe’s theory of diffraction to include nonlinear propagation and the evolution of quantum entanglement. We then control the nonlinearity and entanglement using a spatial light modulator, creating an adaptive optics for higher degrees of coherence and correlation. We demonstrate the methods experimentally, showing in all cases that the resolving power, phase sensitivity, and signal-to-noise properties of classical imaging systems are enhanced beyond their conventional limits.
•    For more information, please contact Andrea Alu at aalu@gc.cuny.edu or (512) 496-4963.
•    
•    Date: 1/23/2018
•    Time: 10:00 AM - 11:00 AM
•    College: CUNY Advanced Science Research Center
•    Address: 85 St. Nicholas Terrace, Manhattan
•    Building: ASRC
•    Room: Auditorium