LABORATORIO DI OTTICA

Degree course: 
Corso di Second cycle degree in Physics
Academic year when starting the degree: 
2013/2014
Year: 
1
Academic year in which the course will be held: 
2013/2014
Course type: 
Compulsory subjects, characteristic of the class
Credits: 
6
Period: 
Second semester
Standard lectures hours: 
66
Detail of lecture’s hours: 
Lesson (66 hours)
Requirements: 

Basic optical knowledge. Notions of nonlinear and quantum optics.

Assessment: 
Voto Finale

The course aims to provide the students, interested in the optics, a panoramic of the experimental techniques applied to current research problems. These activities are conducted in several laboratories and using the instruments, they present. Each module of the course has an experimental development.
At the end of the course, the students have acquired not only specific knowledge about the optical systems, but also technical expertise necessary to install an advanced optical setup.

The course includes learning activities managed in equal parts by both professors. There are four distinct modules, the student may choose.
Nonlinear optics
The module focuses on the application of laser pulses in glass Microfabrication techniques.
-Using pulsed laser beams (from fs to ps) for the glass Microfabrication via Bessel beams
-alignment Techniques of the laser beam by using mirrors, lenses, telescopic systems
-generation of Bessel beams by Axitogether and diagnostic with imaging techniques
-alignment of the set-up of microfabrication
-using the software to program the writing of glass
-glass cutting techniques
-tests on different types of glass in different experimental conditions (varying energydepth of the laser beam in the sample, duration of the pulses of the laser)
-diagnostics of glass samples via microscope and SEM.
Light Scattering
The module provides an introductory phase of Light Scattering techniques, with particular reference to run experiments and instrumentation to be used. Afterwards, the students divided into groups of 3 unit 2 will, starting with the creation of the optical setup, one of the experiments below:
-Heterodyne Near Field Scattering (HNFS).
-Low angle elastic Light Scattering (LAELS)-Dynamic Light Scattering (DLS)
Quantum Optics
The module provides for the creation and use of some optical setup for measuring quantum aspects of radiation. To do this will be some introductory lectures on light, on detectors and about possible types of measure. Afterwards, students can choose from one or more of the following topics by installing the experimental setup and performing the necessary measures:
-measurement of photon number distribution in continuous fields with single photon detectors-measurement of light classical connections to split a beam splitter
-generation of conditional States of light
-random number generation-violation of Bell's inequalities for related quantum fields.
Optical Spectroscopy
The module provides for the study of the properties of molecular systems in solution by means of spectroscopic techniques (absorption measurements, integrated fluorescence emission in time and solved in time). Will be given some introductory lessons about the properties of physical systems to investigate and on experimental techniques used. Afterwards students can one of the following experiments:
-ultra fast transient measurements in high molecular systems photoreactivity and efficient low
-fluorescence study of structure and conformational dynamics of biomolecules including DNA
-sequencing study of fluorescence from individual molecules in confocal geometry (FCS, PCH, antibunching).
Introductive lectures( 6 hours) Laboratory(60 hours).

Presentations and notes provided by professors.
Verification of the achievement of the objectives of the course will be done during the same course in observing and assessing the experimental activity of students. The final exam will consist in the discussion of the laboratory report on the activities carried out.

Professors