Contents lists available at ScienceDirect Optik journal homepage: www.elsevier.com/locate/ijleo Original research article Metamaterial based photonic crystal fiber memory for optical computer G. Palai a, ⁎ , B. Nayak a , Santosh Kumar Sahoo b , Soumya Ranjan Nayak c , S.K. Tripathy d a Department of Electronics and Communication Engineering, Gandhi Institute for Technological Advancement (GITA), Bhubaneswar, 752054, India b CVR college of Engineering, Hyderabad, India c Department of CSE, K L University, Vaddeswaram, Guntur, Andhra Pradesh, 522502, India d Department of Electronics and Communication Engineering, National Institute of Technology, Silchar, 788 010, India ARTICLE INFO Keywords: Photonic crystal fiber Optical computer Optical memory ABSTRACT Photonic crystal fiber (PCF) based optical memory is discussed in this communication, which will be useful for optical computer. The proposed PCF is designed by using metamaterial structure, which bestows implausible upshot for envisaging optical memory in computer system. Present report uses two IR signals of 1300 nm and 1575 nm wavelengths to realize the aforementioned memory application, where 1300 nm acts as input signal and 1575 is used as excited signal. Moreover plane wave expansion technique is employed to study the modal analysis of electric- field distribution in the proposed photonic crystal fiber, where the variation of peak electricfield in the fiber is the basic operational principle of present discussion. Finally, this work avows that photonic crystal fiber with apt intrinsic parameters can be a suitable element for optical com- puter. 1. Introduction The English proverb “slow and steady wins the race” is factual pertaining to tortoise and hare story from Aesop’s fable is going to be notional with respect to worldwide research in technology owing to the todays know-how is burgeoning as swift mode in such way that “fast and steady wins the race” [1]. The same can be acknowledged with respect to Moore’s law which vis-à-vis to ministration of optoelectronic devices [2]. Similarly research on information technology is hastily time to time with the help of nanotechnology. Furthermore the combination of information and nanotechnology bestows a fast communication using computer network. To achieve high speed computer network, each element or component of computer system should be emphasized for the same efficiency. To realize a speedily communication, researchers are speculating that light based computer would fetched an adequate efficiency as the desire of today’s generation as compared to current days electronic computer [3]. Moreover researchers are also considering that photonic based computer is an upcoming entrant to the world. However it takes delay to arrive in market due to fabrication feasibility and trapping of photons [4]. It is a device that uses photon in lieu of electron or electric current that performs a digital computation. As far as the limitation of today’s computer is concerned, electric current generates heat during digital computation in computer system [5]. Also the amount of heat increases due the increasing of speed of computer which leads to the generation of massive heat loss and as a result of which it damages the hardware component. However quantum of light (photon particle) creates insignificant amount of heat regardless of how much is used. Moreover with the help of the advantages of visible and infrared (IR) networks at the device or components of scale, this future computer could be pretended 10 or more times speed than that of a conventional electric https://doi.org/10.1016/j.ijleo.2018.06.083 Received 29 April 2018; Accepted 15 June 2018 ⁎ Corresponding author. Tel.: +91 9439045946. E-mail addresses: gpalai28@gmail.com, g_pallai@yahoo.co.uk (G. Palai). Optik - International Journal for Light and Electron Optics 171 (2018) 393–396 0030-4026/ © 2018 Elsevier GmbH. All rights reserved. T