Optics | NTUA Biophotonics research group

Introduction to medical physics

Sun, 01 Sep 2024 00:00:00 +0000

Description

Introduction to Medical Physics. The role of Medical Physicist in health care. Biomechanics, Muscle and forces. Physics of the skeleton. Pressure in the body. Osmosis and the kidneys. Physics of the lungs and breathing. Physics of the cardiovascular system and electric signals. Sound, speech and hearing. Interaction of mechanical waves with living matter and applications (e.g. extracorporeal lithotripsy). Physics of the eyes and vision, artificial vision. Introduction to Bionics, biosensors and bioactivators.

Course schedule 2024-2025

The courses are given as follows:

Monday: 12:45am - 14:30pm Room 103 (New Build. SAMPS)
Wednesday: 12:45am - 14:30pm, Room 001 (New Build. SAMPS)

Laser applications in biomedicine and the environment

Sun, 01 Sep 2024 00:00:00 +0000

Description

Biophotonics/applications in biomedicine module.

Introduction to biomedical applications of lasers, biophotonics
Quantities and physics of radiometry/photometry.
Basic concepts from laser physics, spatial/temporal coherence, focusing, interaction with lenses, beam propagation.
Tissue optics. Scattering, absorption, Beer-Lambert law, scattering probability function, scattering anisotropy coefficient.
Radiation propagation equation and applications to the study of light propagation within biological tissues.
Basic concepts of radiation laser interaction of living matter:
1. Photochemical action, photodynamic therapy
2. Photothermal action
3. Photodegradation
4. Photomechanical action
Applications of lasers in ophthalmology
Diagnostic applications. Optical microscopy, optical coherence tomography, optogenetics, optical diffusion tomography, two-photon fluorescence microscopy.

Course schedule 2024-2025

The courses are given as follows:

Monday: 10:45am - 12:30pm Room 103 (New Build. SAMPS)
Wednesday: 10:45am - 12:30pm, Room 001 (New Build. SAMPS)

Physics [Oscillations and waves]

Sun, 01 Sep 2024 00:00:00 +0000

Description

Introduction to the simple harmonic oscillator. Simple harmonic oscillator with damping. Forced oscillations. Complex impedance - Resonance.
Coupled oscillators: Normal modes, normal frequencies, normal coordinates. Systems with multiple degrees of freedom.
Waves in continuous media in 1 dimension: Wave equation in 1-D. Travelling waves. Standing waves. Reflection, transmission along a discontinuity. Dispersion: Wavepackets. Phase and group velocity. Surface waves in liquids. Fourier methods, bandwidth theoremsΚύματα σε συνεχή μέσα, σε μία διάσταση: Εξίσωση κύματος σε 1-Διάσταση. Οδεύοντα κύματα. Στάσιμα κύματα. Ανάκλαση, διάδοση σε ασυνέχεια. Διασπορά: Κυματοπακέτα. Φασική και ομαδική ταχύτητα. Επιφανειακά κύματα σε υγρά. Μέθοδοι Fourier, θεωρήματα εύρους ζώνης: Πεπερασμένο ελαστικό μέσο – Σειρά Fourier. Άπειρο ελαστικό μέσο – Ολοκλήρωμα Fourier. Θεωρήματα εύρους ζώνης (Σχέσεις αβεβαιότητας).
Κύματα σε δύο διαστάσεις: Διαφορική εξίσωση κύματος σε 2-Διαστάσεις. Στάσιμα κύματα σε 2-Δ, Εκφυλισμός, Οδεύοντα κύματα σε 2-Δ, Νόμοι ανάκλασης-διάδοσης, Κυματοδήγηση.
Κύματα σε τρεις διαστάσεις (ακουστικά, ηλεκτρομαγνητικά), Πόλωση, Συντελεστές Fresnel, (απλή αναφορά): Ακουστικά. Ηλεκτρομαγνητικά. Συμβολή, Περίθλαση (γενικές αρχές): Συμβολή με διαίρεση μετώπου. Συμβολή με διαίρεση πλάτους. Περίθλαση Fraounhofer."

Suggested bibliography

Pain
Ingard
French

Course schedule 2024-2025

The courses are given as follows:

Tuesday: 10:45am - 12:30pm Room 103 (New Build. SAMPS)
Wednesday: 10:45am - 12:30pm, Room 001 (New Build. SAMPS)