DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Yun-Ho | ko |
dc.contributor.author | Jeong, Hyeon-Su | ko |
dc.contributor.author | Kim, Jung-Hyun | ko |
dc.contributor.author | Yoon, Eun-Kyoung | ko |
dc.contributor.author | Yoon, Dong-Ki | ko |
dc.contributor.author | Jung, Hee-Tae | ko |
dc.date.accessioned | 2013-03-11T01:39:22Z | - |
dc.date.available | 2013-03-11T01:39:22Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY, v.20, no.31, pp.6557 - 6561 | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.uri | http://hdl.handle.net/10203/97943 | - |
dc.description.abstract | A self-assembly fabrication method was developed for the preparation of microlens arrays (MLAs). The procedure used the focal conic structures of semi-fluorinated smectic liquid crystals (LCs), the periodic toric focal conic domains (TFCDs), which were prepared on a surface-modified substrate. This LC-based MLA system focuses light via the intrinsic molecular orientations of the TFCDs, leading to a highly efficient MLA with good optical properties. The thickness of the smectic LC film could be used to control both the microlens feature size, over the range 5-15 mu m, and the microlens focal length, over the range 1-3 mu m. In addition, we prepared two-dimensional hexagonally packed polymer MLAs with conical or dimple shapes by successive replica molding, using a UV-curable photopolymer (NOA63) and polydimethylsiloxane (PDMS), from a TFCD array template containing a dimple structure. The LC-based TFCD MLAs and the secondary replicated polymer MLAs, using NOA63 and PDMS molds, showed good lens performances. We anticipate that this LC self-assembly method will be applicable to the large-scale fabrication of MLAs. The method allows fabrication of dynamic MLAs that are responsive to external fields, such as electric or magnetic fields, or to thermal variations. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | PHASE | - |
dc.subject | PHOTOLITHOGRAPHY | - |
dc.subject | DOMAINS | - |
dc.subject | SYSTEM | - |
dc.title | Fabrication of two-dimensional dimple and conical microlens arrays from a highly periodic toroidal-shaped liquid crystal defect array | - |
dc.type | Article | - |
dc.identifier.wosid | 000280398300027 | - |
dc.identifier.scopusid | 2-s2.0-77954978146 | - |
dc.type.rims | ART | - |
dc.citation.volume | 20 | - |
dc.citation.issue | 31 | - |
dc.citation.beginningpage | 6557 | - |
dc.citation.endingpage | 6561 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.identifier.doi | 10.1039/c0jm00910e | - |
dc.contributor.localauthor | Yoon, Dong-Ki | - |
dc.contributor.localauthor | Jung, Hee-Tae | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | PHOTOLITHOGRAPHY | - |
dc.subject.keywordPlus | DOMAINS | - |
dc.subject.keywordPlus | SYSTEM | - |
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