Abstract
Transparent TeO2-based glass ceramics consisting of nanocrystalline particles such as 15K2O.15Nb2O5.70TeO2 have been prepared, and the effect of surface layers on the second harmonic (SH) intensity has been examined using the Maker fringe method. An enhanced second harmonic generation (SHG) with fine fringe patterns has been observed at the original surface layers in transparent glass ceramics. The thickness of the surface layers giving a strong SHG is estimated to be around 50 μm, which is much larger than the coherence length of 3.5 μm for the glass ceramics. The glass ceramics without the original surface layers obtained by mechanical polishing show weak SH intensity, and any fringe pattern is not observed. Any evidence for an orientation of crystals at the surface has not been confirmed, and the origin of an enhanced SHG is unclear at this moment.
| Original language | English |
|---|---|
| Pages (from-to) | 2118-2120 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 77 |
| Issue number | 14 |
| Publication status | Published - Oct 2 2000 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Enhanced second harmonic generation at surface in transparent nanocrystalline TeO2-based glass ceramics. / Sakai, Ryosuke; Benino, Yasuhiko; Komatsu, Takayuki.
In: Applied Physics Letters, Vol. 77, No. 14, 02.10.2000, p. 2118-2120.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enhanced second harmonic generation at surface in transparent nanocrystalline TeO2-based glass ceramics
AU - Sakai, Ryosuke
AU - Benino, Yasuhiko
AU - Komatsu, Takayuki
PY - 2000/10/2
Y1 - 2000/10/2
N2 - Transparent TeO2-based glass ceramics consisting of nanocrystalline particles such as 15K2O.15Nb2O5.70TeO2 have been prepared, and the effect of surface layers on the second harmonic (SH) intensity has been examined using the Maker fringe method. An enhanced second harmonic generation (SHG) with fine fringe patterns has been observed at the original surface layers in transparent glass ceramics. The thickness of the surface layers giving a strong SHG is estimated to be around 50 μm, which is much larger than the coherence length of 3.5 μm for the glass ceramics. The glass ceramics without the original surface layers obtained by mechanical polishing show weak SH intensity, and any fringe pattern is not observed. Any evidence for an orientation of crystals at the surface has not been confirmed, and the origin of an enhanced SHG is unclear at this moment.
AB - Transparent TeO2-based glass ceramics consisting of nanocrystalline particles such as 15K2O.15Nb2O5.70TeO2 have been prepared, and the effect of surface layers on the second harmonic (SH) intensity has been examined using the Maker fringe method. An enhanced second harmonic generation (SHG) with fine fringe patterns has been observed at the original surface layers in transparent glass ceramics. The thickness of the surface layers giving a strong SHG is estimated to be around 50 μm, which is much larger than the coherence length of 3.5 μm for the glass ceramics. The glass ceramics without the original surface layers obtained by mechanical polishing show weak SH intensity, and any fringe pattern is not observed. Any evidence for an orientation of crystals at the surface has not been confirmed, and the origin of an enhanced SHG is unclear at this moment.
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UR - http://www.scopus.com/inward/citedby.url?scp=0000663092&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0000663092
VL - 77
SP - 2118
EP - 2120
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 14
ER -