Please use this identifier to cite or link to this item:
Title: Ultrafast volume holography for stretchable photonic structures
Authors: Tham, Nicholas Cheng Yang
Kim, Young-Jin
Murukeshan, Vadakke Matham
Sahoo, Pankaj Kumar
Keywords: Engineering::Mechanical engineering
Diffraction Efficiency
Beam Steering
Issue Date: 2019
Source: Tham, N. C. Y., Sahoo, P. K., Kim, Y.-J., & Murukeshan, V. M. (2019). Ultrafast volume holography for stretchable photonic structures. Optics Express, 27(9), 12196-12212. doi:10.1364/OE.27.012196
Series/Report no.: Optics Express
Abstract: Stretchability and flexibility are two key requirements for manipulating the propagation of light in compact and high-performance lab-on-a-chip systems. These requirements are best met by embedding stretchable and flexible tuning elements such as volume phase gratings (VPGs) in polydimethylsiloxane (PDMS), making them attractive alternatives to conventional rigid optical elements. However, fabrication of these PDMS VPGs is a challenge, requiring extensive modifications to PDMS or complex multi-step processes that require long processing times. In this context, we propose the concept of “ultrafast volume holography” for the fabrication of stretchable photonic structures such as tunable VPGs directly in unmodified PDMS. Our concept translates insights in heat regulation via fs repetition rate control into volumetric patterning, forming periodic refractive index modulation of 1.95 × 10−4 in the PDMS without post-processing. VPGs formed are further demonstrated as active beam steering units and tunable spectroscopic optical elements.
ISSN: 1094-4087
DOI: 10.1364/OE.27.012196
Rights: © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles
SC3DP Journal Articles

Files in This Item:
File Description SizeFormat 
Ultrafast volume holography for stretchable photonic structures.pdf2.75 MBAdobe PDFThumbnail

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.