Abstract
The in situ observation of thermal alteration of photoinduced optical anisotropy of ultrathin films of polymethacrylates having p-cyanoazobenzene side chains exhibiting amorphous, crystalline, and liquid-crystalline phases was performed by means of temperature scanning ellipsometry. Whereas photogenerated optical anisotropy of amorphous polymer films disappeared above glass transition temperature, the photoinduced anisotropy of films of liquid crystalline and crystalline polymer films was significantly amplified by heat treatment. In case of crystalline polymers, amplified optical anisotropy was maintained even at 300°C.
| Original language | English |
|---|---|
| Pages (from-to) | 1377-1379 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 76 |
| Issue number | 11 |
| Publication status | Published - 2000 Mar 13 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Thermal amplification of photoinduced optical anisotropy of p-cyanoazobenzene polymer films monitored by temperature scanning ellipsometry. / Kidowaki, Masatoshi; Fujiwara, Takenori; Morino, Shin'ya; Ichimura, Kunihiro; Stumpe, Joachim.
In: Applied Physics Letters, Vol. 76, No. 11, 13.03.2000, p. 1377-1379.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Thermal amplification of photoinduced optical anisotropy of p-cyanoazobenzene polymer films monitored by temperature scanning ellipsometry
AU - Kidowaki, Masatoshi
AU - Fujiwara, Takenori
AU - Morino, Shin'ya
AU - Ichimura, Kunihiro
AU - Stumpe, Joachim
PY - 2000/3/13
Y1 - 2000/3/13
N2 - The in situ observation of thermal alteration of photoinduced optical anisotropy of ultrathin films of polymethacrylates having p-cyanoazobenzene side chains exhibiting amorphous, crystalline, and liquid-crystalline phases was performed by means of temperature scanning ellipsometry. Whereas photogenerated optical anisotropy of amorphous polymer films disappeared above glass transition temperature, the photoinduced anisotropy of films of liquid crystalline and crystalline polymer films was significantly amplified by heat treatment. In case of crystalline polymers, amplified optical anisotropy was maintained even at 300°C.
AB - The in situ observation of thermal alteration of photoinduced optical anisotropy of ultrathin films of polymethacrylates having p-cyanoazobenzene side chains exhibiting amorphous, crystalline, and liquid-crystalline phases was performed by means of temperature scanning ellipsometry. Whereas photogenerated optical anisotropy of amorphous polymer films disappeared above glass transition temperature, the photoinduced anisotropy of films of liquid crystalline and crystalline polymer films was significantly amplified by heat treatment. In case of crystalline polymers, amplified optical anisotropy was maintained even at 300°C.
UR - http://www.scopus.com/inward/record.url?scp=0000385398&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000385398&partnerID=8YFLogxK
M3 - Article
VL - 76
SP - 1377
EP - 1379
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 11
ER -