In a weak field limit of the probe light, an analytic ob equation for the probe light. Controlling optical bistability in a threelevel atomic system amitabh joshi,1 andy brown,1 hai wang,2 and min xiao1, 1department of physics, university of arkansas, fayetteville, arkansas 72701 2state key laboratory of quantum optics and quantum devices, institute of optoelectronics, shanxi university, taiyuan, peoples republic of china received 11 november 2002. An optically bistable twowave scheme implemented upon absorption of light energy by a molecular gas is proposed. Controlling optical bistability in a threelevel atomic system.
Metaldielectric composite material is used in the switching for its larger thirdorder nonlinear susceptibility 10. Well known for research in nonlinear optics and quantum optics, he authored a book on optical bistability, and was a recipient of the humboldt research award and michelson medal. All optical switching in the threelevel aob system. Here, we study the ob and om properties of incident light in a defect slab doped by a gaas quantum well qw nanostructure. Optical bistability ob and optical multistability om due to wide applications in all optical switching and transistors is studied in this paper.
Optical bistability provides a simple way to control light with light. The present scheme allows for dynamic optical control of the dispersive. The university of arizona wyant college of optical sciences 1630 e. The patterns originate from the interaction of a coherent field, that is injected into a resonant optical cavity, with a kerr medium that fills the cavity. The influences of doppler broadening and the controlling light on switching intensity thresholds and width of the ob are investigated. Optical bistability at low light level due to collective. Optical bistability at twowave action of light on a. Cavity enhanced nonlinear optics for few photon optical bistability taylor k. Optical bistability of graphene in the terahertz range. We demonstrate lowpower thermo optical bistability caused by the joule heating mechanism in a onedimensional photonic crystal pc nanobeam resonator with a moderate quality factor q.
Controlling light with light, associated press, orlando, fa. One way of analyzing the bistability is to explore the optical kerre. Such as bistability of transmission in a fabryperot interferometer filled with a nonlinear medium 8, and hysteretic reflection curve at a nonlinear interface 9. Optical bistability, the basic nonlinear phenomenon mediating the control of light by light, paves the way to the all optical logic being of ultimate demand for a plethora of applications in laser information technologies. The advent of electromagnetically induced transparency eit offered a new coherent material with exotic and controllable optical properties. One interesting application is optical bistability ob which can be used in all optical switching and optical computing 1. Optical bistability in a controllable giant selfkerr. Onedimensional magnetic photonic crystal with two magnetic defect layers is theoretically studied. Tunable optical bistability of graphenewrapped dielectric. One way of analyzing the bistability is to explore the optical kerr effect, a nonlinear.
Optical bistability at low light level due to collective atomic recoil m. We present our experimental demonstration of controlling the cavity output intensity of one laser beam with the intensity of another laser beam in a composite system consisting of a collection of threelevel type rubidium atoms and an optical ring cavity. Indoingso,wemake use of a fourlevel atomlight coupling scheme, as shown in fig. Weak material nonlinearity at optical frequencies poses a serious hurdle to realizing optical bistability at. Manipulating the optical bistability in a nonlinear plasmonic. Optical bistability in a controllable giant selfkerr nonlinear. Analytical model for optical bistability in nonlinear metal nano. In a series of studies, the use of systems exhibiting optical bistability is proposed to implement cll 1,2. Osa controlling light by light with threelevel atoms. Pdf the field of photorefractive physics and optics is mature and. It is shown that, under certain conditions, the system switched to the upper state remains in this state. The history of optical bistability in lasers and passive systems is.
Optical bistability of graphene inthe terahertzrange. Alloptical switching using optical bistability in nonlinear. Examples include optical switches, filters, gratings, routers and light sources. The desirable features of the optically bistable elements are low power consumption, speed of switching and small size. The dependence of defect modes inside photonic band gap on the distance between defect layers is investigated. In this work we present an analytical model for optical bistability in a metal nanoantenna involving kerr nonlinear medium based on detailed analysis of the correlation between the incident and extinction light intensity under surface plasmon resonance spr. Alloptical switching in subwavelength metallic grating. Results and discussion the article is organized as follows. Low threshold optical bistability at terahertz frequencies. Emphasis is on passive nonlaser systems that exhibit reversible bistability with input intensity as the hysteresis variable, along with the physics and the potential applications of such systems for nonlinear optical signal processing. By controlling the coupling strength j between the two. Because of this strong coupling, we observe optical bistability at. Some interesting theoretical results for ob have been reported for threelevel atoms con. In optics, optical bistability is an attribute of certain optical devices where two resonant transmissions states are possible and stable, dependent on the input.
Indoingso,wemake use of a fourlevel atom light coupling scheme, as shown in fig. Coherent control of absorption provides functionality for analog and digital, all optical light by light modulationswitching without any optically nonlinear medium, thereby delivering this. Pdf controlling light by light with threelevel atoms. Optomechanical coupling is also shown to exhibit nonlinear effects such as squeezing 10, optical bistability 12,1419, optomechanically induced transparency 20,21, and photon blockade. The behavior of ob in various quantum systems has been extensively studied both theoretically and experimentally 8 15.
The control of light transmission through a fabryperot cavity containing atoms is theoretically investigated, when the cavity mode beam and an intersecting control beam are both close to specific atomic resonances. This option allows users to search by publication, volume and page selecting this option will search the current publication in context. Phase and thickness control of optical bistability and. In a series of studies, the use of systems exhibiting optical bistability is.
Tunable optical bistability in onedimensional photonic. Optical bistability in an lband dual wavelength erbiumdoped fiber laser with. Optical bistability is a rapidly expanding field of current research because of its potential application to all optical logic and because of the interesting phenomena it encompasses. In one embodiment this invention provides a bistable optical device comprising a fabryperot etalon which has an optical cavity containing a naphthalocyanine dye medium as a nonlinear optical component. Switching from one state into another is performed by a pulse at one of the two frequency. Ob has been extensively studied both theoretically and experimentally because of its wide applications in. I have demonstrated a new family of continuously metallic metamaterialsintaglio and basrelief metamaterials. Controlled alloptical switching controlling steady. Optical bistability via an external control field in all.
We theoretically investigate the optical bistability in a composite photonic molecule cavity optomechanical system consisting of two whispering gallery mode microcavities, where one of the optical cavities is optomechanical with a high quality factor, and the other optical cavity is an auxiliary cavity with high cavity dissipation. Controlled alloptical switching controlling steadystate. Analytical model for optical bistability in nonlinear. It has long been a goal of optical physicists to utilize light to control the transmission of another optical signal, and thus constructing all optical logic gates 1. Tunable optical bistability in onedimensional photonic crystal with a nonlinear defect coupled by graphene sheets. Bistability refers to an optical effect where a system exhibits two different values of the transmitted light intensity for a single value of the input intensity.
We also show that optical pulses are delayed for 1. Analytical model for optical bistability in nonlinear metal. Optical bistability ob is one of the most interesting phenomena, and is essential in alloptical switching and in alloptical stor age devices. Controlling light with photonic metamaterials core. A simple gaas etalon has been used to observe optical bistability, pulse shaping, and modulation of one light beam by another.
Controlling steadystate and dynamical properties of atomic optical bistability, pp. Cavity enhanced nonlinear optics for few photon optical. Controlling light with light academic, new york, 1985. Optical bistability an overview sciencedirect topics. Such devices may lead to all optical, highspeed computation and communication. The medium is coherently excited by strong controlling field and a weak probe laser field under electromagnetically induced transparency eit and doppler broadening. Gibbs 6 august 1938 3 september 2012 was a notable physicist and professor at the university of arizona college of optical sciences. Resonatorfree optical bistability based on epsilonnearzero. Controlling light with light in the threelevel aob system. Controlling steadystate and dynamical properties of atomic. Optical bistability controlling light with light gibbs, hyatt on. First, the linear optical response of a nanoantenna array on a sio 2 substrate is evaluated using a sie method 38, 39. If we assume that the electric field as,, where denotes time, is linearly polarized and therefore can be treated as a scalar, we can express it in terms of the slowly varying normalized complex envelope,, in this way. Optical bistability ob is a result of the nonlinearity of.
Apr 25, 2019 optical bistability is one of the key functionalities required to implement all optical switching and optical memory that are essential functions for all optical signal processing 1,2,3. Controlling cavity output with coupling beam frequency. An interesting issue is to investigate the optical bistability in atomic systemsinvolving arydbergstate. One way to achieve such control is via optical bistability, in which two distinct output optical powers can be achieved for the same input power 2. Optical bistable system exhibits two possible outputs for the same input intensity which are suitable for controlling the light by light. Optical bistability is a way of controlling light with light 1,2.
Alloptical switching based on a subwavelength metallic grating structure containing nonlinear optical materials has been proposed and numerically investigated. Optical bistability is a way of controlling light with light1,2. Controlling light with light in a plasmonic metamaterial. Since the first observation of optical bistability in a passive, unexcited medium of sodium na vapor in 1974 mccall, gibbs, churchill. Optical bistability controlling light with light abebooks.
All optical switching in subwavelength metallic grating structure containing nonlinear optical materials changjun min,1 pei wang,1, chunchong chen,1 yan deng,1 yonghua lu,1 hai ming,1 tingyin ning,2 yueliang zhou,2 and guozhen yang2 1department of physics, anhui key laboratory of optoelectronic science and technology, university of science and technology of china, hefei, anhui 230026, china. Controlling the optical bistability and multistability via. Lowthreshold optical bistability of graphenewrapped dielectric. Optical bistability in onedimensional magnetic photonic. Optical control of the polariton spin was employed in the realisation of spinbistability and multistability, using quasiresonant. Optical bistability enabled control of resonant light. Selecting this option will search all publications across the scitation platform selecting this option will search all publications for the publishersociety in context. Optical bistability in a onedimensional photonic crystal.
We study optical bistability ob in a controllable giant selfkerr nonlinear atomic gaseous medium placed in a unidirectional ring cavity. The metal layer is replaced by the dielectric sandwich structure with the insertion of graphene, and this configuration can support tmpolarization surface electromagnetic wave. Controlling light with light focuses on optical bistability in nonlinear optical systems. We propose a modified kretschmannraether configuration to realize the low threshold optical bistable devices at the terahertz frequencies. A fourlevel atomic system is considered and its interaction with the cavity mode is studied by solving for the time dependent cavity field and atomic state populations. Optical bistability ob is one of the most interesting phenomena, and is essential in all optical switching and in all optical stor age devices. Indeed, the field of photonics is based on the premise that controlling light signals with light requires intense laser fields to facilitate beam interactions in nonlinear media, where the superposition principle can be broken. Hybrid bistable optical device is significant because it provides an ideal planewave purely dispersive and wellcontrolled device that could be used to compare theories and experiments.
The portal can access those files and use them to remember the users data, such as their chosen settings screen view, interface language, etc. At the same time, the medium is continuously exposed to light of another frequency. Controlling light by light with threelevel atoms inside an optical cavity article pdf available in optics letters 2715. Although, studies on singleeit are described in detail for singleeit, however, extension from single to multi eit is currently of current interest due to it gains advantages in multichannel optical communication, waveguides for optical signal. Optical bistability ob is a way of controlling light with light 10, 11.
This thesis reports on my research efforts towards controlling light with photonic metamaterials for desired functionalities. When the intensity of the controlling beam is modulated with a square waveform, the cavity output power switches on and off with a. Anomalous optical bistability and robust entanglement of. Controlling light with light and millions of other books are available for amazon kindle. We consider an optical feedback scenario in which the pro.
Optical bistability under nonresonant excitation in spinor polariton. Alloptical switching using optical bistability in non. Manipulating the optical bistability in a nonlinear. Emphasis is on passive nonlaser systems that exhibit reversible bistability with input intensity as the hysteresis variable, along with the physics and the potential applications of.
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