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PRODID:-//Vrije Universiteit Amsterdam//NONSGML v1.0//EN
NAME:Promotie J. Xu
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART:20261125T134500
DTEND:20261125T151500
DTSTAMP:20261125T134500
UID:promotie-j-xu@8F96275E-9F55-4B3F-A143-836282E12573
CREATED:20261105T045133
LOCATION:Main building VU, 1105, Auditorium, De Boelelaan, 1081 HV, Amsterdam
SUMMARY:Promotie J. Xu
X-ALT-DESC;FMTTYPE=text/html: <html> <body> <p><p>Studies in Coherence
  and Physical Optics</p></p> <p>In her thesis physicist Jia Xu explor
 es how light waves are related (coherence) and how their electric fie
 lds are oriented (polarization).</p><p>“Both affect how light passe
 s through optical systems. Standard Jones and Mueller matrix methods 
 cannot fully describe light with partial coherence and polarization, 
 so I developed a broader matrix method. I also studied brightness flu
 ctuations when light is focused, polarization control in ultrashort p
 ulses, and atmospheric effects on a free-space optical White Rabbit l
 ink for precise clock synchronization.”</p><h3>Focusing of light</h
 3><p>“The new method extends Malus’ law to partially polarized li
 ght and shows that non-uniform polarizers can create points where wav
 e correlations vanish. Calculations show that focusing can greatly in
 crease random brightness fluctuations.&nbsp;</p><p>"I also show theor
 etically how an interferometer with a dispersive material can control
  polarization within ultrashort pulses. Experiments found that atmosp
 heric turbulence, beam coherence and receiver properties together aff
 ect the stability and reliability of the White Rabbit synchronization
  link.”</p><p>More information on the <a href="https://hdl.handle.n
 et/1871.1/ab810829-9eba-45fb-ba87-866cbe7c39e4">thesis</a>.</p> </bod
 y> </html>
DESCRIPTION: Studies in Coherence and Physical Optics In her thesis ph
 ysicist Jia Xu explores how light waves are related (coherence) and h
 ow their electric fields are oriented (polarization).“Both affect h
 ow light passes through optical systems. Standard Jones and Mueller m
 atrix methods cannot fully describe light with partial coherence and 
 polarization, so I developed a broader matrix method. I also studied 
 brightness fluctuations when light is focused, polarization control i
 n ultrashort pulses, and atmospheric effects on a free-space optical 
 White Rabbit link for precise clock synchronization.”<h3>Focusing o
 f light</h3>“The new method extends Malus’ law to partially polar
 ized light and shows that non-uniform polarizers can create points wh
 ere wave correlations vanish. Calculations show that focusing can gre
 atly increase random brightness fluctuations.&nbsp;"I also show theor
 etically how an interferometer with a dispersive material can control
  polarization within ultrashort pulses. Experiments found that atmosp
 heric turbulence, beam coherence and receiver properties together aff
 ect the stability and reliability of the White Rabbit synchronization
  link.”More information on the <a href="https://hdl.handle.net/1871
 .1/ab810829-9eba-45fb-ba87-866cbe7c39e4">thesis</a>.
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