PMID- 23262526
OWN - NLM
STAT- MEDLINE
DCOM- 20131125
LR  - 20181023
IS  - 1539-4522 (Electronic)
IS  - 1559-128X (Linking)
VI  - 51
IP  - 35
DP  - 2012 Dec 10
TI  - Polydimethylsiloxane coating on an ionic polymer metallic composite for a tunable 
      focusing mirror.
PG  - 8315-23
LID - 10.1364/AO.51.008315 [doi]
AB  - An ionic polymer metallic composite (IPMC) can perform a bending deformation 
      under an electric field by a small bias voltage. A roughening process is 
      necessary and typically included in the IPMC fabrication. Roughening processes 
      bring several advantages, including better metal adhesion and actuation 
      performance. However, the resulting large surface roughness is an obstacle for 
      optical applications. In this paper, we coated polydimethylsiloxane to improve 
      the surface roughness of IPMC. The improved surface roughness is around 28 nm 
      versus tens of micrometers with an uncoated IPMC. The surface-improved IPMC 
      achieved focusing power of 77 diopters under a 7 V bias voltage. We also found 
      that the lifetime in atmosphere is 30 times longer than that of the nonimproved 
      IPMC. Compared with other popular focusing techniques, such as liquid lenses or 
      micromachined deformable mirrors, the driving voltage is at least one order of 
      magnitude lower and the tunable range is two to three times larger. The effects 
      of the surface-improved fabrication on reflectance, surface scattering, and 
      actuation performance are also discussed. We demonstrate the surface-improved 
      method to construct a patterned IPMC deformable membrane for optical 
      applications.
FAU - Tsai, Shih-An
AU  - Tsai SA
AD  - Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 
      No. 1 Roosevelt Road, Section 4, Taipei 10617, Taiwan.
FAU - Wei, Hsiang-Chun
AU  - Wei HC
FAU - Su, Guo-Dung J
AU  - Su GD
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Appl Opt
JT  - Applied optics
JID - 0247660
RN  - 0 (Dimethylpolysiloxanes)
RN  - 0 (Ions)
RN  - 0 (Metals)
RN  - 0 (Polymers)
RN  - 63148-62-9 (baysilon)
SB  - IM
MH  - Biosensing Techniques
MH  - Dimethylpolysiloxanes/*chemistry
MH  - Equipment Design
MH  - Interferometry
MH  - Ions/*chemistry
MH  - Lasers
MH  - Materials Testing
MH  - Metals/*chemistry
MH  - Microscopy, Atomic Force
MH  - Microscopy, Electron, Scanning
MH  - Optics and Photonics
MH  - Polymers/*chemistry
MH  - Scattering, Radiation
MH  - Surface Properties
MH  - Time Factors
EDAT- 2012/12/25 06:00
MHDA- 2013/12/16 06:00
CRDT- 2012/12/25 06:00
PHST- 2012/12/25 06:00 [entrez]
PHST- 2012/12/25 06:00 [pubmed]
PHST- 2013/12/16 06:00 [medline]
AID - 246482 [pii]
AID - 10.1364/AO.51.008315 [doi]
PST - ppublish
SO  - Appl Opt. 2012 Dec 10;51(35):8315-23. doi: 10.1364/AO.51.008315.