2016 CAP Congress / Congrès de l'ACP 2016

Session

R2-4 Biophotonics (DPMB-DAMOPC) / Biophotonique (DPMB-DPAMPC)

R2-4

16 Jun 2016, 13:15

University of Ottawa

Conveners

R2-4 Biophotonics (DPMB-DAMOPC) / Biophotonique (DPMB-DPAMPC)

• Christopher Bergevin (York University)

1235. Simultaneous Measurement of Refractive Index and Thickness of Multi Layer Systems Using Fourier Domain Optical Coherence Tomography

Payman Rajai (university of Ottawa)

16/06/2016, 13:15

Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)

Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)

Purpose: To develop and validate a methodology for the simultaneous extraction of index of refraction, n(r), and physical dimension, t(r), profiles from the Spectral OCT data of multi-layered systems without any prior knowledge of the system under test. Method: We first develop a theoretical framework for the simultaneous extraction of index of refraction and thickness. We then use the...

1311. Characterization of Gold Nanocages as Contrast Agents for Optoacoustic Imaging

Bill Whelan (University of Prince Edward Island)

16/06/2016, 13:30

Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)

Oral (Non-Student) / orale (non-étudiant)

Optoacoustic (OA) imaging is being investigated as a non-invasive technique for monitoring cancer therapeutics. It involves exposing tissues to nanosecond pulsed near infrared laser light. The optical energy is absorbed by tissue chromophores and converted into heat, leading to thermoelastic expansion, producing acoustic waves in the ultrasonic frequency range which are then detected by...

1324. Changes in ocular properties can be predicted from retinal blur due to defocus during emmetropization in the chick eye

Melanie Campbell (University of Waterloo)

16/06/2016, 13:45

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral (Non-Student) / orale (non-étudiant)

INTRODUCTION: Emmetropization is an active process involving retinal feedback and is likely driven by the amount of defocus of the image on the retina. Normal emmetropization has long been assumed to result in zero refractive error, but recently this has been questioned. We wish to objectively determine, in chicks, when emmetropization is complete and how much retinal blur due to defocus...

1402. Advances in Raman spectroscopy and its applications

Prof. Hanan Anis (Faculty of Engineering, University of Ottawa)

16/06/2016, 14:00

Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)

Invited Speaker / Conférencier invité

This talk focuses on the investigation and development of an integrated portable optical biosensor for label-free detection of biomolecules, based on enhanced Raman techniques. This enhancement is achieved by integrating hollow core photonic crystal fibers (HC-PCF) and nanoparticles. Challenges in developing a robust, reusable and reliable sensors will be discussed as well as methods to...

1430. Laser Induced Neuro-Stimulation Analysis

Kavleen Aulakh (Carleton University)

16/06/2016, 14:30

Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)

Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)

This paper exploits the effectiveness of neuro-stimulation when induced with a near infrared laser (808 nm). We examine the absorption spectrum of fats, skin, neuromuscular tissues and bones when irradiated trans-cranially through animal models. Thereby, modelling irradiation time versus penetration depth for an optimal dose. The efficacy of high power laser on the viability and the ATP...