C
C. Vijayan
Researcher at Indian Institute of Technology Madras
Publications - 112
Citations - 1836
C. Vijayan is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Quantum dot & Absorption (electromagnetic radiation). The author has an hindex of 22, co-authored 108 publications receiving 1631 citations. Previous affiliations of C. Vijayan include Indian Institutes of Technology.
Papers
More filters
Journal ArticleDOI
Low-threshold optical power limiting of cw laser illumination based on nonlinear refraction in zinc tetraphenyl porphyrin
TL;DR: In this article, the optical nonlinearity exhibited by zinc tetraphenyl porphyrin at low laser powers is utilized to design an optical limiter for low threshold operation.
Journal ArticleDOI
Single- and few-layer graphene growth on stainless steel substrates by direct thermal chemical vapor deposition
TL;DR: In this paper, a method for the synthesis of graphene on commercially available stainless steel foils using direct thermal chemical vapor deposition was reported, and X-ray photoelectron spectroscopic measurements were further used to establish the influence of various elemental species present in stainless steel on graphene growth.
Journal ArticleDOI
Optical absorption and photoluminescence studies on CdS quantum dots in Nafion
TL;DR: In this paper, the optical absorption and photoluminescence spectra of strongly confined CdS quantum dots embedded in the polymer Nafion were analyzed and three bands identified in the optical spectra could be attributed to 1se-1sh, 1pe-1ph, and 2se-2sh transitions of the noninteracting particle model.
Journal ArticleDOI
Raman spectra of CdS nanocrystals in Nafion: longitudinal optical and confined acoustic phonon modes
TL;DR: In this article, the longitudinal optical and acoustic phonons in CdS nanocrystals in the strongly confined regime in the polymer matrix Nafion were studied using Raman spectroscopy.
Journal ArticleDOI
Room Temperature Ferromagnetism and Optical Limiting in V 2 O 5 Nanoflowers Synthesized by a Novel Method
TL;DR: In this paper, the authors report on the observation of room temperature ferromagnetic properties at 300, 200, and 100 K observed from a hysteresis loop and propose a growth mechanism of the flowers and attribute the origin of ferromagnetism to the introduction of oxygen vacancies.