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• ?pt???? ?????d?µ??

• µ?s? ??µat?p???s?? µe ?pe?ß?a?e?? pa?µ???
• Laser

?pe????? ?a????t??a ?a. ?e????t?
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?????d?µ?? µe ???s? ?pe?ß?a???? pa?µ?? Laser

• (a?t?? e??a? µ????? p?? ta???ast?? sa? t?t???
  st?? pa???s?as? p?? a??????e?)
• ???µp?? ??a??s???
• ?.?. 09102021

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?pe?ß?a?e?? pa?µ?? Laser

• ?????e?at?? t???? t?? femtosecond(1 fs 10
  sec)
• ?e???? ??tas?
• ?? ??aµµ??? d??d?s?

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??µat?p???s? pa?µ?? Laser
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?? ??aµµ??? fa???µe?a?at? t? d??d?s??pe?ß?a????
pa?µ?? Laser

• ??t??st?as?
• ??t???aµ??f?s? t?? f?s??
• Self-steepening

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Fa???µe?? ??t?est?as??
N N?? ?µ?_??
??a??µa?s? t?? ??tas?? ?at? µ???? t?? µet?p??
d??d?s?? gtd?a??µa?s? t?? de??t?
d????as?? gta?t?est?as? t?? pa?µ??
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??t?d?aµ??f?s? t?? f?s??(t? ??????? a?????? t??
a?t?est?as??)

• ??af??et???? e?t?se?? ?at? µ???? t??
• pa?µ?? ß??p??? d?af??et??? de??t?
• d????as??.

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Self-Steepening
????e?ta? ??a t?? a??a?? st? pe????aµµa t??
pa?µ??, st? ???e???, d??ad?, t?? ?µa??t?ta? p??
?fe??eta? st?? p??a?afe??e?se? µ? ??aµµ????
d?ad??as?e?.
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?? ??aµµ???? t??p??????sµ??(p??asµa ap? t? ????
s?????? st?? ???? a????µ?t?ta?)

• F?t?????sµ??
• ????f?t??????
• ??s? fa???µ???? s??a??a?
• S??d?asµ?? t?? pa?ap???
• ????sµ?? ?????st?ß?da?

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???a??sµ?? F?t?????sµ??

• ???ste?? ???a??sµ?? S??a??a?
• ???t?? S??d?ast???? ????sµ??
• ?e??? ????f?t?????? ????sµ??

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????sµ?? ?????st?ß?da?

• ??a ????sµ??? ??e?t????? ap????f? a??ep?????a
  f?t???a
• ?ta? ? ????t??? t?? e????e?a ?pe?ße? t?
  e?e??e?a?? ??sµa, µ?s? ????s?? ?????e? ??a
  de?te?? ??e?t????? ?.?.?.
• ? d??aµ??? a?t? a???s? t?? ??e?t??????
  a????µ?t?ta?, ?d??e? st?? t???st? d?µ??????a
  p??sµat??

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??µ??????a p??sµat?? (??f??? ??e?t??????
a????µ?t?ta? )
??s? t?? p??a?afe????t?? ?d????µaste st?
d?µ??????a t?? p??sµat??

• ? p????t?ta t?? p??sµat?? stad?a?? a????eta?.
• ?e?a??te?? p????t?ta ?d??e? se ?????te?? ???µ?
  ap????f?s?? e????e?a?(µetaf??? ap? t??
  a?t???ß???a st? ?????).
• ?d????µaste se t??p?p???s? t?? d?afa???? ??????.
  

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??????s? ??µ??? (t??p?p???s?) st? es?te???? e???
d?afa???? µ?s??
? µ??a??sµ?? t??p?p???s??

• ta??te??? ???µ?? ap????f?s?? ap? t? ???µ?
  d????s?? t?? ?e?µ?t?ta?.
• a??a??µe?? ap????e?s? e????e?a? ?d??e? se µ???µ?
  a??a?? st? pe?????(µm).

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???ta?? a?t???ß???s?? ?a? µe??t??
?st?as? st? de??µa
?e??t? t?? µ??f?????a? t?? d?µ??
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G?a d?af??et???? pa?aµ?t???? a?t???ß???s?? ???
d?af??et???? ??µ???(d?µ??).
(??a ???e ?????)
??a? pa?µ?? 110 fs t?? a)36nJ b)140nJ c)500nJ
µe 1.4 ?? est?as?
1 pa?µ?? 110fs µe a)50nJ, 0.45NA b)15nJ,
1.4NA c)500nJ, 0.45NA d)500nJ,1.4NA
??µ?? ap? pa?µ??? 110fs est?asµ???? ap? 1.4 ??
fa?? ?? p??? t?? a???µ? ?a? t?? e????e?a
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??t??? d?µ?? p?? s??µat?st??a? ap? d?ad???????
pa?µ??? 30 fs,e????e?a? 5 nJ ?a? est?aµ???? µe
fa?? 1.4??, ap? ta?a?t?t? Laser sta 25 MHz. 100
pa?µ?? st?? 1? st??? 100.000 st?? te?e?ta?a
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???a?? 3D µ??µ?? se d?afa??? ?????
?e d?af??et??? ???t?? est?as?? ???e f???
d?at?????µe ???? t?? ???? t?? µ?s?? ?a?????t?? t?.
??a f?ta d?ad???? µ??µ??
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???a?? ??µat?d????(waveguides ?a? wavesplitters)
???a?? wave-splitter -µe pa??µ??? t??p? -??
??µat?d???? e??a? p??? ???t? µeta?? t??? ?ste st?
s?µe?? d?asta???s?? µ???? t?? a?t??a? ?a
µ?????ete ?a? st??? 3.
???a?? ??µat?d???? -?p??? ta?a?t?t?? -pa?µ?? 30
fs -e????e?a? 5 nJ -ta??t?ta de??µat?? 20 mm/s
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?st?as? pa?µ?? se ????
??????? e?????? t?? f?sa??da?
???ta?? ????sµ?? ?a? ape?????s??
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?????ep?d?as? pa?µ?? ?e???
?????aµµa µet??se?? ??a femto ?a? picosecond
pa?µ???(100fs, 200ps)
???ta?? p?? µet?? t?? d??aµ? t?? ????st????
??µat??
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??????e????????? ???s?

• ?a?a?t???st???
• ?peµßa??e? st? es?te???? t?? ??tt???? ????? ?a
  f?e??e? t? pe??ß??µa
  
  
  
• ????a?e? pe?????sµ??? ??µ?? ???? ap? t? s?µe??
  est?as??

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??????e????????? ???s?
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?fa?µ???? st?? ß???????? ??e??a

• ?e??t? t?? e?d???tta????? d?µ??
• ??e?e???s? t?? µ????d?e??as???

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??e?e???s? s??se?? µeta?? ?p???tta?????
???a??d??? ?a? t?? ?e?t??????? t???
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???ta?? d?ata?a??? ?a? ape?????s??
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?????

• ??at??ß? t?? Chris B. Schaffer(??a t?? t?t??
  Doctor of Philosophy in the subject of physics ),
  Harvard University/Interaction of femtosecond
  laser pulses with transparent materials, May 2001
• ??p??µat??? e??as?a t?? Sta???? ???st?p?????,
  S??F? (???p? st???e?a de? e??a? d?a??s?µa ????
  p??ß??µat?? p?? pa???s?ase t? a??e?? st? f?s? t??
  d?????s??)
• ?a ß?ß??a t?? s????? ?p?? ??e??st??e