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Laser Frequency Upconversion in Pair Plasmas and in Novel Radiation Sources.
Laser Frequency Upconversion in Pair Plasmas and in Novel Radiation Sources.

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자료유형  
 학위논문
Control Number  
0017160262
International Standard Book Number  
9798382191225
Dewey Decimal Classification Number  
530
Main Entry-Personal Name  
Griffith, Alec Reynolds Brady.
Publication, Distribution, etc. (Imprint  
[S.l.] : Princeton University., 2024
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2024
Physical Description  
117 p.
General Note  
Source: Dissertations Abstracts International, Volume: 85-10, Section: B.
General Note  
Advisor: Fisch, Nathaniel J.
Dissertation Note  
Thesis (Ph.D.)--Princeton University, 2024.
Summary, Etc.  
요약High intensity laser matter interactions are widely studied across a broad range of field and plasma parameters. These interactions produce unique physical behavior in a variety of applications. At high laser intensities, the dynamics of electrons in plasmas are significantly impacted by relativistic effects. This thesis describes the impact of relativistic particle motion in two cases, in which we purposefully manipulate the frequency of high intensity laser pulses in plasmas. In one case, we aim to produce detectable signatures of the combined collective effects resulting from the mix of plasma physics and quantum electrodynamics (QED). When QED driven electron-positron pair generation becomes significant, it may shift the frequency of a passing laser, but the laser frequency shift is suppressed by relativistic effects. To reduce this suppression, we determine optimal laser powers through numerical simulation for increasing the significance of the collective behavior of highly relativistic electrons and positrons. In the second case, we examine how the relativistic electron dynamics might resonantly produce high energy pulses beyond the ultraviolet. Resonant frequency upconversion can occur when laser intensities are high enough that the relativistic corrections are significant, but not dominant. Upconversion at high efficiencies would have high impact; it would allow new radiation sources since laser power is available at visible wavelengths but not at much shorter wavelengths. Mildly relativistic resonant upconversion is demonstrated numerically in two configurations in this thesis. We also identify how higher fidelity theoretical models might be employed to further develop these wave mixing schemes. Both problems build upon how classical plasma wave dynamics are changed at relativistic intensities.
Subject Added Entry-Topical Term  
Plasma physics.
Subject Added Entry-Topical Term  
Physics.
Subject Added Entry-Topical Term  
Quantum physics.
Index Term-Uncontrolled  
High field physics
Index Term-Uncontrolled  
Laser plasma interactions
Index Term-Uncontrolled  
Quantum electrodynamics
Index Term-Uncontrolled  
Plasma parameters
Index Term-Uncontrolled  
Laser pulses
Added Entry-Corporate Name  
Princeton University Astrophysical Sciences-Plasma Physics Program
Host Item Entry  
Dissertations Abstracts International. 85-10B.
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:654071

MARC

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■020    ▼a9798382191225
■035    ▼a(MiAaPQ)AAI30992331
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530
■1001  ▼aGriffith,  Alec  Reynolds  Brady.
■24510▼aLaser  Frequency  Upconversion  in  Pair  Plasmas  and  in  Novel  Radiation  Sources.
■260    ▼a[S.l.]▼bPrinceton  University.  ▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a117  p.
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-10,  Section:  B.
■500    ▼aAdvisor:  Fisch,  Nathaniel  J.
■5021  ▼aThesis  (Ph.D.)--Princeton  University,  2024.
■520    ▼aHigh  intensity  laser  matter  interactions  are  widely  studied  across  a  broad  range  of  field  and  plasma  parameters.  These  interactions  produce  unique  physical  behavior  in  a  variety  of  applications.  At  high  laser  intensities,  the  dynamics  of  electrons  in  plasmas  are  significantly  impacted  by  relativistic  effects.  This  thesis  describes  the  impact  of  relativistic  particle  motion  in  two  cases,  in  which  we  purposefully  manipulate  the  frequency  of  high  intensity  laser  pulses  in  plasmas.  In  one  case,  we  aim  to  produce  detectable  signatures  of  the  combined  collective  effects  resulting  from  the  mix  of  plasma  physics  and  quantum  electrodynamics  (QED).  When  QED  driven  electron-positron  pair  generation  becomes  significant,  it  may  shift  the  frequency  of  a  passing  laser,  but  the  laser  frequency  shift  is  suppressed  by  relativistic  effects.  To  reduce  this  suppression,  we  determine  optimal  laser  powers  through  numerical  simulation  for  increasing  the  significance  of  the  collective  behavior  of  highly  relativistic  electrons  and  positrons.  In  the  second  case,  we  examine  how  the  relativistic  electron  dynamics  might  resonantly  produce  high  energy  pulses  beyond  the  ultraviolet.  Resonant  frequency  upconversion  can  occur  when  laser  intensities  are  high  enough  that  the  relativistic  corrections  are  significant,  but  not  dominant.  Upconversion  at  high  efficiencies  would  have  high  impact;  it  would  allow  new  radiation  sources  since  laser  power  is  available  at  visible  wavelengths  but  not  at  much  shorter  wavelengths.  Mildly  relativistic  resonant  upconversion  is  demonstrated  numerically  in  two  configurations  in  this  thesis.  We  also  identify  how  higher  fidelity  theoretical  models  might  be  employed  to  further  develop  these  wave  mixing  schemes.  Both  problems  build  upon  how  classical  plasma  wave  dynamics  are  changed  at  relativistic  intensities.
■590    ▼aSchool  code:  0181.
■650  4▼aPlasma  physics.
■650  4▼aPhysics.
■650  4▼aQuantum  physics.
■653    ▼aHigh  field  physics
■653    ▼aLaser  plasma  interactions
■653    ▼aQuantum  electrodynamics
■653    ▼aPlasma  parameters
■653    ▼aLaser  pulses
■690    ▼a0759
■690    ▼a0599
■690    ▼a0605
■71020▼aPrinceton  University▼bAstrophysical  Sciences-Plasma  Physics  Program.
■7730  ▼tDissertations  Abstracts  International▼g85-10B.
■790    ▼a0181
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160262▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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