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Hardware Technologies
Published in Sajjan G. Shiva, Introduction to Logic Design, 2018
Optical computing has been an active area of research over the last few years, as an alternative to electronic digital computing to design high speed computer systems. Data communication through optical fibers has already been proven to be more versatile and cost effective than that through the electronic media. Optical interconnection networks are widely being investigated [Brenner, 1988; Jhans, 1988]. Optical interconnections between the components on an integrated circuit chip would save the chip area occupied by the interconnect silicon and eliminate the signal interference problems. Several analog computer-like structures based on optical devices have also been in use in image processing applications. But the technology has not yielded any practical equivalent to current day electronic digital computers yet. The AT&T Bell laboratory has recently announced the invention of a practical optical transistor. This has led to the speculation that optical computers may be around the corner.
Basic Photon and Quantum Optics
Published in Daniel Malacara-Hernández, Brian J. Thompson, Fundamentals and Basic Optical Instruments, 2017
Some other interesting applications include optical computing, communications, laser fusion, image processing, temporal signal processing, and low-noise detection schemes. Also, the extension of these applications to other regions of the electromagnetic spectrum can provide new classes of quantum electronic processors.
Optical and biological activities of organic 4-chloroaniline derivative crystals
Published in Molecular Physics, 2023
C. Andal, E. Kavitha, S. Reshma Chandran
Nonlinear optical materials are highly attracted by the researchers for many years. This is due to its wide range of applications such as laser technology, information technology and material technology for laser frequency conversion process, optical communication systems, optical computing and optical sensing process [1]. Nonlinear materials show first and second-order hyperpolarisability properties. In which, the third-order nonlinear optical materials have a vital role in many applications [2]. Some of them are third harmonic generation, two-photon absorption and optical Kerr effect, i.e. intensity-dependent refractive index. Most of the nonlinear optical switching devices work on the concept of intensity-dependent refractive index [2]. A high molecular polarisability in a molecule explains the strong delocalisation of π electrons in the organic molecules and this result in third-order optical nonlinearity. In general, large hyperpolarisabilities are the result of an optimum combination of various factors such as π delocalisation length, donor-acceptor groups, dimensionality and orientation for a given molecular structure [3]. Aniline and its related structures are widely studied because of its importance in many pharmaceutical, electro-optical and several other social applications like production of dyes and pesticides [4].
Improving the Designs of Nearest Neighbour Quantum Circuits for 1D and 2D Architectures
Published in IETE Journal of Research, 2023
Chandan Bandyopadhyay, Anirban Bhattacharjee, Robert Wille, Rolf Drechsler, Hafizur Rahaman
Classical computing has not been so much effective over applications such as database search [1] and asymmetric cryptography and also lags behind in terms of computing speed. So, it becomes very essential to switch over some efficient computing environments that can deal with both the constraint space and time simultaneously while performing hard computations. In recent years, three alternative computing strategies (such as DNA computing [2], quantum computing [3], and optical computing [4]) have generated significant interest towards fast and scalable computations. Quantum computing that is governed by quantum mechanical properties has come out as a prime computing strategy which not only is able to perform parallel computations but also is able to solve some complex problems (like prime factorization [5] in RSA cryptosystem, database search) for which there is no classical algorithm. Starting from cryptography [6] to medical science [7], quantum computing has found numerous applications in science today.
Structural and Optical Coefficients Investigation of γ-Al2O3 Nanoparticles using Kramers-Kronig Relations and Z–scan Technique
Published in Journal of Asian Ceramic Societies, 2021
A. Faraji Alamouti, M. Nadafan, Z. Dehghani, M. H. Majles Ara, A. Vejdani Noghreiyan
Nowadays, the studies on nonlinear optical (NLO) materials with the ultrafast response, enhanced laser-induced damage threshold, larger two-photon absorption (TPA), and third-order nonlinearities have gained increasing interest due to their promising potentials in the next-generation photonic devices including optical switches [15–21], optical information processing [16,17,19–21], 3D optical data storage [17,19–22], optical power limiting [15,16,18–21], optical fiber communication [16,17,19–22], laser-predicated imaging, remote sensing [19–21], frequency conversion of coherent laser sources [17,22,23], optical computing [23], high-density data processing [23], nonlinear imaging [16], image manipulation [15], and color displays [17,23].