Titanium Sapphire Laser

Slides:

Advertisements

Similar presentations

Femtosecond lasers István Robel

Advertisements

Ultrafast Experiments Hao Hu The University of Tennessee Department of Physics and Astronomy, Knoxville Course: Advanced Solid State Physics II (Spring.

Components of ultrafast laser system

May Chuck DiMarzio, Northeastern University ECE-1466 Modern Optics Course Notes Part 9 Prof. Charles A. DiMarzio Northeastern University.

Luminescence centres 9.1 Vibronic absorption and emission 9.2 Colour centres 7.3 Paramagnetric impurities in ionic crystals 7.4 Solid state laser and optical.

General Properties of Light Light as a wave Speed Wave properties: wavelength, frequency, period, speed, amplitude, intensity Electromagnetic wave.

Light Amplification by Stimulated

Types of Laser Based on the mode of operation (i) Pulsed Laser systems

Ruby Laser Crystal structure of sapphire: -Al2O3 (aluminum oxide). The shaded atoms make up a unit cell of the structure. The aluminum atom inside the.

Lecture 3 Kinetics of electronically excited states

Dye lasers The gain medium in a dye lasers is a solution made with an organic dye molecule. The solution is intensely coloured owing to the very strong.

Spectroscopy 2: Electronic Transitions CHAPTER 14.

1.2 Population inversion Absorption and Emission of radiation

Absorption and emission processes

Ultrafast Spectroscopy

Lecture 38 Lasers Final Exam next week. LASER L ight A mplification by S timulated E mission of R adiation.

Stimulated Raman scattering If high enough powered radiation is incident on the molecule, stimulated Anti-Stokes radiation can be generated. The occurrence.

CHAPTER Laser Amplifiers Fundamentals of Photonics 1 Chapter 3 Laser Amplifiers.

Pump-Probe Spectroscopy Chelsey Dorow Physics 211a.

Neodymium:YAG Laser Nd3+ in yttrium-aluminum-garnet (Y3Al5O12)

LASERs Light Amplification by Stimulated Emission of Radiation.

Nonlinear Optics Lab. Hanyang Univ. Chapter 3. Classical Theory of Absorption 3.1 Introduction Visible color of an object : Selective absorption, Scattering,

Laser Principle Eman Ali Ateeq.

M.D. Seliverstov February 2013 CERN 1st LA³NET Topical Workshop on Laser Based Particle Sources

Illumination and Filters Foundations of Microscopy Series Amanda Combs Advanced Instrumentation and Physics.

TYPES OF LASER Solid State lasers:Ruby laser, Nd:YAG laser, Nd:Glass laser Gas lasers:He-Ne laser, CO 2 laser, Argon laser Liquid/Dye lasers:Polymethene.

Siegfried Schreiber, DESY The TTF Laser System Laser Material Properties Conclusion? Issues on Longitudinal Photoinjector.

High Harmonic Generation in Gases Muhammed Sayrac Texas A&M University.

ECE 455: Optical Electronics Lecture #9: Inhomogeneous Broadening, the Laser Equation, and Threshold Gain Substitute Lecturer: Tom Spinka Tuesday, Sept.

B.SC.II PAPER-B (OPTICS and LASERS)

Chapter 10. Laser Oscillation : Gain and Threshold

Solution Due to the Doppler effect arising from the random motions of the gas atoms, the laser radiation from gas-lasers is broadened around a central.

Introduction to Spectroscopy Yongsik Lee.

V. Sonnenschein, I. D. Moore, M. Reponen, S. Rothe, K.Wendt.

Optical Amplifiers By: Ryan Galloway.

Chapter 1 Introduction 1.1 Classification of optical processes Reflection Propagation Transmission Optical medium refractive index n( ) = c / v ( )

4-Level Laser Scheme nn  m  →  n  excitation  n  →  m  radiative decay slow  k  →  l  fast(ish)  l  →  m  fast to maintain population.

Chapter 11. Laser Oscillation : Power and Frequency

Summary Kramers-Kronig Relation (KK relation)

Workshop for advanced THz and Compton X-ray generation

Electron-phonon coupling in alpha-hexathiophene single crystals

The dye is a large molecule with a large number of closely spaced vibrational states – essentially a continuum of states. The pump pulse populates the.

 LIGHT  AMPLIFICATION BY  STIMULATED  EMISSION OF  RADIATION.

Noise considerations in Ti:Sapphire pumping applications Self starting.

Saturation Roi Levy. Motivation To show the deference between linear and non linear spectroscopy To understand how saturation spectroscopy is been applied.

PRESENTED BY: AMANDEEP SINGH B.Sc 2(NON-MED) ROLL NO. 1042

Types of Laser Based on the mode of operation (i) Pulsed Laser systems

Light Amplification by Stimulated

Really Basic Optics Instrument Sample Sample Prep Instrument Out put

Presentation series Photon Physics, UU April 9, 2009 Marlous Kamp

ENERGY TRANSFER IN HBr + HBr AND HBr + He COLLISIONS

Optical Spectroscopy: UV/Vis

A generic ultrashort-pulse laser

Microwaves for Qubits on Helium

The Helium-Cadmium laser

Helium-Neon laser Henrik Porte.

Argon Ion Laser Laura Rossi Photon Physics Course

Tunable Dye Laser Scheme

Principle of Mode Locking

Copper vapor laser Claire van Lare April 9, 2009

Elma Carvajal Gallardo

Dye Lasers Rob van Rooij Images from:

Nd:YLF Laser Michiel de Jong

4-Level Laser Scheme The general view was that it would be impossible or at least very difficult to achieve population inversion relative to the ground.

Titanium: Sapphire laser

THE ARGON ION LASER “The most noble of them all”

Atomic transitions and electromagnetic waves

Photon Physics ‘08/’09 Thijs Besseling

PRINCIPLE AND WORKING OF A SEMICONDUCTOR LASER

THE CARBON DIOXIDE LASER

Presentation transcript:

Titanium Sapphire Laser Photon Physics 12 April 2006 Hendrik de Leeuw (0216976)

TiSa in General Titanium Sapphire Laser = TiSa TiSa = Ti: Al2O3 Ti Al (0.1% in weight)

Energy Tunable laser (600-1180 nm)

Pumping

Pumping 2 Upper laser lifetime = 3.2 ms which is short So use: Argon ion laser (cw operation) Freq doubled ND:YAG or ND:YLF (pulsed operation)

Energy level scheme Boltzmann!

Selection rules Laser ion : Ti3+ Neutral atom: 3d24s2 3d electron no excited state absorption Tunability is high

Broadening mechanisms Homogeneous broadening (T2 ) Electron- phonon interaction Vibronic transition (coupling electronic and vibrational states) Thus Lorentzian lineshape

Specifics Gaincoefficient: 20 m-1 Stimulated emission cross-section: 3.4 * 10-23 m2 Upper laser level lifetime = 3.2 s Saturation intensity Isat = hul /(ul u) = (1.3-2.3)* 109 W m-2

Specifics 2 topt = (g0 L a)1/2 -a = 21/2 a1/2 -a With a absorption and scattering loss per pass and L =0.1 m. The optimal transmission depends on output: pulsed (reflectivity 50-70 %) cw (reflectivity 2-20 %)

Specifics 3 Output power: Back of the envelope: up to 50W for cw up to 1012 W for 100 fs pulses Back of the envelope: It= Isat/2 (g0L/(a+t)-1) t Pt= It A A 10 mm2 t= topt a  0,005 Pt =8 KW

Mode profile Single mode solid state laser: TEM00 (mode competition) Number longitudinal modes:  = c/2d = 1.5*108 s-1 FWHM= 1.0*1014 s-1 Nr_modes = FWHM/= 6.6 *104 modes

Mode- locking Many TiSa lasers are Mode-locked Kerr mode-locking Huge emission band Q-switching

Mode- locking Many TiSa lasers are Mode-locked Kerr mode-locking Huge emission band Q-switching But “large” cross-section!

Recent experiment Molecular dyes (± 450 nm, freq doubled TiSa) voltage dependent dyes, 5 ms Cells-vesicles Solvent relaxation

Questions ?