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SUMMARY:Nonlinear optics for Ultrashort High Intensity Pulse Amplification
DTSTART:20241204T150000Z
DTEND:20241204T170000Z
DTSTAMP:20260728T193411Z
UID:f7d9bea0-6934-440a-b79a-16f753082909
SEQUENCE:3
CREATED:20241203T101610Z
DESCRIPTION:Optical Parametric Chirped Pulse Amplification (OPCPA) is a te
 chnique that allows the amplification of high intensity ultrashort laser p
 ulses. The goal of this thesis is the design and optimization of an OPCPA 
 system at the Laboratory of Intense Lasers (L2I) in Instituto Superior Té
 cnico (IST)\, allowing high intensity pulses with durations approaching fe
 w femtoseconds.This system is pumped by a near-infrared laser with 1.03 mm
  wavelength\, repetition rate of 100 kHz\, tunable pulse duration between 
 0.1 and 1 ps and maximum of around 0.64 mJ. An amplified compressed fs pul
 se has yet to be obtained. However\, using Parametric Amplification with a
  YCOB crystal\, pulses with spectral bandwidth supporting down to 38.8 fs 
 duration and amplifications of 30 times have been achieved in this thesis 
 work.This thesis work details the full process of amplification including 
 the experimental setup used\, studies on the supporting processes necessar
 y for the amplification (Second Harmonic Generation and Supercontinuum Gen
 eration)\, and the preliminary data of the amplified pulse. This data is a
 lso compared with published results from similar experiments. Details on t
 he ongoing conclusion of this work are also presented.
LAST-MODIFIED:20241203T145617Z
LOCATION:QA02.4 (piso -2 Torre sul Alameda)
URL:http://df.vps.tecnico.ulisboa.pt/en/events/nonlinear-optics-for-ultras
 hort-high-intensity-pulse-amplification/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="g4936">Optical Parametric 
 Chirped Pulse Amplification (OPCPA) is a technique that allows the amplifi
 cation of high intensity ultrashort laser pulses. The goal of this thesis 
 is the design and optimization of an OPCPA system at the Laboratory of Int
 ense Lasers (L2I) in Instituto Superior Técnico (IST)\, allowing high int
 ensity pulses with durations approaching few femtoseconds.<br/><br/></p><p
  data-block-key="aql86">This system is pumped by a near-infrared laser wit
 h 1.03 mm wavelength\, repetition rate of 100 kHz\, tunable pulse duration
  between 0.1 and 1 ps and maximum of around 0.64 mJ. An amplified compress
 ed fs pulse has yet to be obtained. However\, using Parametric Amplificati
 on with a YCOB crystal\, pulses with spectral bandwidth supporting down to
  38.8 fs duration and amplifications of 30 times have been achieved in thi
 s thesis work.<br/><br/></p><p data-block-key="7fmvn">This thesis work det
 ails the full process of amplification including the experimental setup us
 ed\, studies on the supporting processes necessary for the amplification (
 Second Harmonic Generation and Supercontinuum Generation)\, and the prelim
 inary data of the amplified pulse. This data is also compared with publish
 ed results from similar experiments. Details on the ongoing conclusion of 
 this work are also presented.</p>
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