Browsing by Keywords "λέιζερ"

Now showing items 1-20 of 25

  • Study of High Harmonic Generation in a semi-infinite gas cell, generated by ultrashort femtosecond laser pulses.

    Η.Μ.U, School of Engineering (ScENG), Electronic Engineering Dept.
    Authors: Frantzeskakis, Nikolaos
    Thesis advisor: Papadogiannis, Nektarios
    Publication Date: 2021-09-02
    The topic that is investigated in this Master Thesis is related with the “Study of High Harmonic Generation in Semi-Infinite Gas cell by ultrashort laser pulses”. The time duration of these pulses is about of few ...

  • Analysing and processing images for objects of great historic value.

    T.E.I. of Crete, School of Engineering (STEF), Department of Informatics Engineering
    Authors: Karousi, Maria
    Thesis advisor: Papadakis, Vasileios
    Publication Date: 29-02-2008
    In this paper we will elaborate with objects that have historic value especially with marble sculptures. Throw years they develop a black encrustation that produced from atmospheric pollution. We want to remove this crust ...

  • Development and evaluation of speech data base detected via optical laser techniques.

    T.E.I. of Crete, School of Applied Sciences, Department of Music Technology and Acoustics Engineering (in Rethymno)
    Authors: Movsesian, Ara
    Thesis advisor: Mpakarezos, Efthymios; Papadogiannis, Nektarios; Zervas, Panagiotis
    Publication Date: 05-10-2014
    In the present study an optoelectronic arrangement for the remote detection of sound is developed, based on the laser beam deflection technique. Using this, sound material from a fully characterized speech data base is ...

  • Development of a system for velocity calculation of a solid object in a fluid.

    T.E.I. of Crete, School of Applied Sciences, Department of Electronic Engineering
    Authors: Vallas, Vasileios; Manogiannakis, Stylianos
    Thesis advisor: Tatarakis, Michail
    Publication Date: 10-03-2009
    Object of this final work is the manufacture of counting system which will be able to measure with reliability and precision the time and the medium speed of subsidence of spherule in experimental pipe with liquid where ...

  • Development of acoustic wave in water by a pulsed laser for biomedical applications.

    T.E.I. of Crete, School of Applied Sciences, Department of Music Technology and Acoustics Engineering (in Rethymno)
    Authors: Skarou, Alexia
    Thesis advisor: Papadogiannis, Nektarios; Bakarezos, Efthymios
    Publication Date: 2016-07-14
    The present study is the first step towards the development of fully functional experimental arrangements for the generation and detection of ultrasounds for biomedical applications in the Acoustical and Optical Technology ...

  • The principles of nonlinear optics.

    T.E.I. of Crete, School of Applied Sciences, Department of Electronic Engineering
    Authors: Agathokleous, Theofilos; Perikleous, Tzoulia; Charalampous, Sotiris
    Thesis advisor: Pliakis, Dimitrios
    Publication Date: 17-07-2013
    This thesis is a translation, and its a reference to principles of nonlinear optics.

  • Automated device for materials surface Laser-processing.

    H.M.U., School of Engineering (ScENG) MSc in Advanced Manufacturing Systems, Automation and Robotics
    Authors: Lilimpakis, Spyridon
    Thesis advisor: Georgiou, Efstratios
    Publication Date: 2023-07-18
    The process of engraving using a laser beam has, in recent years, evolved greatly, resulting in the development of engraving techniques for a range of surfaces and materials. The laser beam uses the high heat it imparts ...

  • Vibrational characterization of piezoelectric transducers using laser interferometric imaging techniques.

    T.E.I. of Crete, School of Applied Sciences, Department of Music Technology and Acoustics Engineering (in Rethymno)
    Authors: Sotiris, Panagiotis
    Thesis advisor: Bakarezos, Efthymios; Orfanos, Ioannis; Papadogiannis, Nektarios
    Publication Date: 2018-01-11
    A time-integrated electronic speckle-pattern interferometry (ESPI) system was appropriately modified and used to study the vibrational characteristics of a commercially available piezoelectric transducer. In addition, the ...

  • Introduction to optoelectronics and optoelectronic arrays.

    T.E.I. of Crete, School of Applied Sciences, Department of Electronic Engineering
    Authors: Spanou, Eftychia
    Thesis advisor: Petridis, Konstantinos
    Publication Date: 28-03-2008
    Although the field of Optoelectronics is one of the most developing and interesting fields today, unfortunately there is no relative greek bibliography to cover its theory. The purpose of this thesis is to cover this space, ...

  • Tracking, analysis, and interference with FEM solution subdomains of laser assisted machining simulations.

    Η.Μ.U, School of Engineering (ScENG), Electronic Engineering Dept.
    Authors: Baroutsos, Andreas
    Thesis advisor: Dimitriou, Vasilis
    Publication Date: 2022-02-11
    The present thesis is focused on the simulations of laser Assisted Machining by the Finite Elements Method. FEM allow us to track and analyze maximum interest sub-regions of the laser Assisted Machining simulation experiment, ...

  • LIBS (Laser-Induced-Βreakdown-Spectroscopy) technique for biological tissues and biomaterials.

    T.E.I. of Crete, School of Engineering (STEF), Medical Systems Technology EUP
    Authors: Kortidis, Ioannis
    Thesis advisor: Savvakis, Konstantinos
    Publication Date: 29-02-2008

  • Equal angle arms kinematic system for materials optical measurements with laser.

    H.M.U., School of Engineering (ScENG) MSc in Advanced Manufacturing Systems, Automation and Robotics
    Authors: Vasilopoulou, Ioanna-Maria
    Thesis advisor: Georgiou, Efstratios
    Publication Date: 2023-07-14
    In the following thesis, we will present an automated kinematic arrangement of a four-joint system, which, during their movement, will be able to maintain very precisely equal angles with respect to the fixed material ...

  • Shock waves of gasdynamics.

    T.E.I. of Crete, School of Applied Sciences, Department of Electronic Engineering
    Authors: Tsaftaridis, Giorgos
    Thesis advisor: Pliakis, Dimitrios
    Publication Date: 09-11-2015
    This graduation thesis examines the shock waves through equations of the theory of gasdynamics and additionally the thermal radiation and radiant heat exchange in a medium.

  • Light speed measurement, using a laser beam.

    T.E.I. of Crete, School of Applied Sciences, Department of Electronic Engineering
    Authors: Athinaios, Nikolaos
    Thesis advisor: Tatarakis, Michail
    Publication Date: 16-04-2008
    Even if the speed of light in the void is one from the most important constants, infrequent becomes her direct calculation in a second cycle laboratory of OPTICAL ELECTRONICS. Appliances that measure straight the speed of ...

  • Study of the ultrasonic elastic waves with optical imaging methods.

    T.E.I. of Crete, School of Applied Sciences, Department of Music Technology and Acoustics Engineering (in Rethymno)
    Authors: Rinakakis, Michail
    Thesis advisor: Papadogianis, Nektarios; Mpakarezos, Efthymios
    Publication Date: 01-08-2011

  • Study and development of a solid-state laser prototype pumped by power- LEDs.

    H.M.U., School of Engineering (ScENG) MSc in Advanced Manufacturing Systems, Automation and Robotics
    Authors: Mikropoulos, Nikolaos
    Thesis advisor: Georgiou, Efstratios
    Publication Date: 2023-07-18
    The purpose of this work is the development of a solid-state crystal Neodymium (Nd:YAG) laser, with an innovative optical pumping source. In particular, the source of energy excitation of the laser consists of arrays of ...

  • Non-conventional thermoelectrical material removal machining process

    T.E.I. of Crete, School of Engineering (STEF), Department of Mechanical Engineering
    Authors: Panousakis, Vasileios
    Thesis advisor: Maniati, Mari-Misel
    Publication Date: 2016-04-12
    This thesis refer to non-conventional thermoelectrical material removal machining process with laser, plasma,ectrodischarge machining and electro. In Chapter 1, we will analyze the significance of the treatment and the ...

  • Optical networks.

    T.E.I. of Crete, School of Applied Sciences, Department of Electronic Engineering
    Authors: Kokiantonis, Panagiotis
    Thesis advisor: Petridis, Konstantinos
    Publication Date: 21-01-2011
    This project describes and analyze the construction and operation of an optical net. Many images and essential data which had taken from the daily experience are includes inside the project. Also refers info about optical ...

  • Optoelectronic device for the remote detection of human voice and heartbeats.

    T.E.I. of Crete, School of Applied Sciences, Department of Electronic Engineering
    Authors: Panagiotopoulos, Vasilis; Frogakis, Stavros
    Thesis advisor: Tzianaki, Eirini
    Publication Date: 03-03-2015
    The optoelectronic laser device is used for the detection of human voice, several meters away. The same device is used also for the detection and record of heartbeats.

  • Experimental laser diode of qualification.

    T.E.I. of Crete, School of Applied Sciences, Department of Electronic Engineering
    Authors: Myxakis, Emmanouil
    Thesis advisor: Petridis, Konstantinos
    Publication Date: 05-07-2012
    This thesis is about a structure constisted of a power supply for laser, one photodiode and two lenses which are consentrating the beam. It was conducted for experimental reasons during laboratory activity in the technological ...