Optical patterning in azobenzene polymer films

Journal of Microscopy - Tập 219 Số 3 - Trang 109-114 - 2005
Burkhard Stiller1, Thomas Geue1,2, Knut Morawetz1, Marina Saphiannikova1
1Institute of Physics, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany
2Laboratory for Neutron Scattering (WHGA/110), Paul Scherrer Institute, ETH Zurich, CH‐5232 Villigen – PSI, Switzerland

Tóm tắt

SummaryThin azobenzene polymer films show a very unusual property, namely optically induced material transport. The underlying physics for this phenomenon has not yet been thoroughly explained. Nevertheless, this effect enables one to inscribe different patterns onto film surfaces, including one‐ and two‐dimensional periodic structures. Typical sizes of such structures are of the order of micrometers, i.e. related to the interference pattern made by the laser used for optical excitation. In this study we have measured the mechanical properties of one‐ and two‐dimensional gratings, with a high lateral resolution, using force–distance curves and pulse force mode of the atomic force microscope. We also report on the generation of considerably finer structures, with a typical size of 100 nm, which were inscribed onto the polymer surface by the tip of a scanning near‐field optical microscope used as an optical pen. Such inscription not only opens new application possibilities but also gives deeper insight into the fundamentals physics underlying optically induced material transport.

Từ khóa


Tài liệu tham khảo

10.1063/1.1332789

10.1063/1.476701

10.1007/s003400100596

10.1016/S0301-0104(99)00096-8

10.1103/PhysRevE.65.052801

10.1021/ma9703822

10.1063/1.1425083

10.1021/jp001172l

10.1021/la991517v

10.1021/ma034122y

10.1063/1.121287

10.1021/jp980859r

10.1021/jp047117k

10.1063/1.1428627

10.1088/0963-9659/7/1/011

10.1021/cr970155y

10.1103/PhysRevLett.80.89

10.1002/1521-4095(200008)12:15<1129::AID-ADMA1129>3.0.CO;2-A

10.1063/1.1642606

10.1021/jp0378788

Stiller B., 2003, Optically induced mass transport generated in near‐fields. SPIE Proceedings. The International Society for Optical Engineering, Advanced Organic Nonorganic Opt. Mater, 5122, 173

Stiller B., 2004, Optically induced mass transport studied by scanning near‐field optical – and atomic force microscopy, Physics Low-Dimensional Structures, 1, 129

10.1080/10587250108023673

10.1002/1096-9918(200008)30:1<549::AID-SIA776>3.0.CO;2-K

10.1039/a902424g

10.1016/S1359-0286(02)00020-7

Thông tin
Thông tin xuất bản

Journal of Microscopy

Tập 219 Số 3

109-114

Thông tin tác giả