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1986??????????W?@??R(Scanning Near-field Optical Microscopy; SNOM)??l?????????????????W???g??????W?@??O????l?????????20?N???v????§×??????Y?¦Ò??èå????????????r????????g????^????????y????^?????????y?????w??????B???y????????w?c??????{???§à??????????????O?§³?????????????x??????????????5~50 nm?????????y?????????§³???????L????^?????????????u???(Evanescent Wave)????????????W???????????g??????s??????§³??????????????????????V?x?????????????W????????????l??????Y???????§à?????????W?????????????????g???????????c????????????W??????r???????????§³????????§³?r??????????????p??????y???o????y????????????????????o?????s§³???@???????SNOM???g????g????????????????s??50~100 nm??????K?????M???????W???§à???
????????B?????????????W???g?????????????????l?a???I????????M?§ß??????Ñk?@?I????????????§¹??(Lightning-rod Effect)????{?????(Plasmon Resonance; PR)???a???????????§¹???????????????c?????????????Q???????????????W?@??R(Scattering-type Scanning Near-field Optical Microscope; s-SNOM)?????????SPM??????????e???y?????SNOM??????????Q??o?????????????W?@??R(Apertureless SNOM)?????W?????????????§³?????s??10~20 nm?????????????????????§³?10 nm??????m???????????????W???|??§à???
?x??????????
s-SNOM?????????AFM???????c?????????g??????????????a???????????§¥??????????W???|?????????????§³?s??20 nm???c???????x?t?s3~5 nm?????h§³???????L???????c????????????????o??????????????¨²????M?o???O?????(Quasi-electrostatic Dipole Model)?????s-SNOM?????????????W?????C??????????????????????????§³????????m?????B???????????@§³????r???????l????§³??a?????????????????????O??(Dipole)???????§³??????????r????????????T?l?a???R????O??(Image Dipole)???@?????O??a??????????r???????????????¨¾?????h??????????????????????c?????????????(Dielectric Constant)???P???????????y?r???????????????????????@???????y?Y?????????????????^????????????????W?????
??¡¤?????D?????????????????¡¤????^???????R(BS)????????????????????????????l??????????????????R(MO)??????60???????????AFM??????????????????????R????????????¡¤???????????????????????????t??????????l?D???? (Acousto-optical Frequency Shifter; FS)?????l???L?D??????L+ ???????l?????c??????????????????R????????????y??(PD)?????M???????????y??

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1. ???g??W???????c??????????
???SNOM ??W?????????c??????§³???P?? s-SNOM??W???????c????????????????P???D????????s-SNOM ????????????¨°?D?????????D????????????§³?10 nm????????20 nm???K???????????????????????§ß???????u??Y???????Û•????1,000??500 nm2?????y????????????????????????????s??16 nm???D??(a)~(d)????§³?10 nm?????????????œÙ???????y?w???????????????e??????¨°?D?????????D???????¦Ë?D???D??(b)????????M????D?????Û•???? 500??250 nm2????D??(d)????????W????????9 nm??

?D?????s-SNOM ?????????y?w???????(a)??¨°?D??(b)???????D??(c)?????¦Ë?D??(d)??D(b)????????M????D

2. ??{???W???y
??????w(Photonic Crystal)???g???_?l???????W???????????????????????^????????????M??20 nm??????????W?????¦Ä???_???????????????W??l?F????????????¨¹??l?d?????w?\??a??????{?????F?????????Y?????a???I????¨¾??????????????????§°ï…???_??{?????W(Plasmonics)???I?????W?????????????????b??????????
????s-SNOM?y?????????????????????p???B????????????§Ò??????????????????Y????a?????????????c??????a?????›h?y??????????§°????????????????????????§°??????????t?????????????¨¾??§°î•?????????????????????M???C???Y?????T?l???¨¾??§°î•Ebbesen??F?l?F?????A???????Y??????????L???§à?????????????????§°î•??Y???`???????@????????????J???????^??????????r???l????{???????{??(Surface Plasmon Wave; SPW)???????A?Y???c??????{???L?????r???a?????O?????—¨???A???????????^?????{??????^??????????????l???????????_???¦Â??L?Y???????????@?????????????????????h????Y??????y????c????????????^?y?Y??????????????????s-SNOM????^?y??????§Þ??l??SPW???C????Y??????????????§°??c????¦°????l?????B?????§Ö??P?S??
4. ?????????????§®y????z?y
???????????????(Surface Enhanced Raman Scattering; SERS)???g????????T??????z?y???g????????????????????????????????V??????c??????????§³???o??????????z?y????g??SERS????????????l????????{?????Y??????????y????????????????????????????l??{?????Y??????a?????????????I????¨¾?????????????????????????104~1012???????¨»?????????§®y?????SERS??????y?????R??????????o?????????????????z?y??????z?y???????????????????¦Ò???????c??????????????????
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????????????I?????s?I283??????????Y??????http://www.materialsnet.com.tw/DocView.aspx?id=8685
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