Lasers, nonlinear optics and optical computers

Smith, S. D.

doi:10.1038/316319a0

Cited by 79 publications

(33 citation statements)

References 10 publications

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“…The desired goal in the field of optical bistability is the possibility of realizing in a single device a set of functionalities, such as switching, logic functions, memory with a fast time response, and modulation, all using a low power laser [5]. Eventually, the practical realization of an optical computer is on the horizon [6].…”

Section: Introductionmentioning

confidence: 99%

Optical bistability of graphene in the terahertz range

et al. 2014

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We use an exact solution of the relaxation-time Boltzmann equation in a uniform ac electric field to describe the nonlinear optical response of graphene in the terahertz (THz) range. The cases of monolayer, bilayer, and ABA-stacked trilayer graphene are considered, and the monolayer species is shown to be the most appropriate one to exploit the nonlinear free electron response. We find that a single layer of graphene shows optical bistability in the THz range, within the electromagnetic power range attainable in practice. The current associated with the third harmonic generation is also computed.

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Section: Introductionmentioning

confidence: 99%

Optical bistability of graphene in the terahertz range

et al. 2014

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“…We discuss in the following how optical bistability and switching effects associated with the large values of E g may be employed to realize all-optical nonlinear operations [25][26][27] in individual and arrays of nanoantennas. In particular, as schematically indicated in Fig.…”

Section: Individual Nonlinear Nanoantennasmentioning

confidence: 99%

Optical nanoantenna arrays loaded with nonlinear materials

Chen

Alù

2010

Phys. Rev. B

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Optical nanoantennas loaded by nanoparticles are used to provide large and controllable field enhancement at the nanoscale. Here we show how the introduction of nonlinearities at the nanoload may realize a whole set of all-optical nanoscale functionalities, such as memories, switches and transistors, as a function of whether the nanoantenna is excited "below" or "above" its resonance frequency. After discussing the main features of this nonlinear nanoantenna operation, we employ its bistable and self-tunable response in a planar array design, which may constitute different nonlinear devices and functionalities of significant interest for optical computing applications.

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“…The rate of progress in developing better devices for optical signal processing and sensor protection will depend on the development of new materials which exhibit larger nonlinear optical (NLO) behavior [1][2][3][4][5]. Interest in certain organic polymers for NLO applications is increasing because of their ease of fabrication, resistance to laser damage, and large polarizabilities [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Optically Nonlinear Films of Amphiphilic Polymers: Synthesis, Langmuir-Blodgett Deposition, and Optical Measurements

et al. 1987

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Novel polymers are synthesized by attaching amphiphilic dye groups along a hydrophilic polyether backbone. These polymers are fabricated into noncentrosymmetric films by the Langmuir-Blodgett (L/B) technique. Stacks of molecular bi-layers are assembled by Y-type deposition, interleaving two different dye-substituted polymers. One polymer has the dye's molecular dipole pointing toward the backbone, while in the other polymer, the dye points in the opposite direction. Light from a Nd:YAG laser is passed through these films and the second harmonic is detected.

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Lasers, nonlinear optics and optical computers

Cited by 79 publications

References 10 publications

Optical bistability of graphene in the terahertz range

Optical bistability of graphene in the terahertz range

Optical nanoantenna arrays loaded with nonlinear materials

Optically Nonlinear Films of Amphiphilic Polymers: Synthesis, Langmuir-Blodgett Deposition, and Optical Measurements

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