Please use this identifier to cite or link to this item:
Title: Individual speckle diffraction based 1D and 2D Random Grating Fabrication for detector and solar energy harvesting applications
Authors: Bingi, Jayachandra
Murukeshan, Vadakke Matham
Keywords: Mechanical and Aerospace Engineering
Issue Date: 2016
Source: Bingi, J., & Murukeshan, V. M. (2016). Individual speckle diffraction based 1D and 2D Random Grating Fabrication for detector and solar energy harvesting applications. Scientific Reports, 6, 20501-.
Series/Report no.: Scientific Reports
Abstract: Laser speckles and speckle patterns, which are formed by the random interference of scattered waves from optically rough surfaces, have found tremendous applications in a wide range of metrological and biomedical fields. Here, we demonstrate a novel edge diffraction phenomenon of individual speckle for the fabrication of 1D and 2D micron and sub-micron size random gratings. These random gratings exhibit broadband response with interesting diffusive diffraction patterns. As an immediate application for solar energy harvesting, significant reduction in transmission and enhanced absorption in thin “Si-random grating-Si” sandwich structure is demonstrated. This work has multifaceted significance where we exploited the individual speckle diffraction properties for the first time. Besides the solar harvesting applications, random gratings are suitable structures for fabrication of theoretically proposed random quantum well IR detectors and hence expected that this work will augur well for such studies in the near future.
ISSN: 2045-2322
DOI: 10.1038/srep20501
Schools: School of Mechanical and Aerospace Engineering 
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

Citations 20

Updated on Jun 16, 2024

Web of ScienceTM
Citations 20

Updated on Oct 28, 2023

Page view(s)

Updated on Jun 15, 2024

Download(s) 50

Updated on Jun 15, 2024

Google ScholarTM




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