Optical responses in singlecrystalline organic microcavities. Optomechanically tuned electromagnetically induced. Optical microcavities have attracted tremendous interest in both fundamental and applied research in the past few decades, thanks to their small footprint, easy integrability, and high quality factors. Nanoscale lasers with optical microcavities by junseok heo a dissertation submitted in partial fulfillment of the requirements for the degree of doctor of philosophy electrical engineering in the university of michigan 2011 doctoral committee. Analytical development and application of optical microcavities by sarah m. Minimizing energy consumption for signal processing using.
Below the value, a region of rotation rate exists where there is no resulting the frequency shifts proportional to the. Ipas optical microcavities put forward photonic devices. How to download your itunes from icloud to your mac rocket yard. Polarized transmission spectra of the anthracene microcavity are shown in fig. This can make extremely fast electricallycontrolled optical amplifiers as well as spin switches. For example, the resonant spectrum of a rolledup optical microcavity is well defined by simply tailoring the rolling length before it rolls 2, as shown in. Wildgen submitted to the graduate degree program in chemistry and the graduate faculty of the university of kansas in partial fulfillment of the requirements for the degree of doctor of philosophy. They are indispensable for a broad range of applications, including longdistance transmission of data, novel laser sources, quantum communications, sensing and biosensing. Abdelsalam school of chemistry, university of southampton, southampton so17 1bj, uk received january 15, 2004. Optical processes in microcavities advanced applied physics. The latest entertainment apps now come installed with macos catalina. Dec 10, 2014 integration of quasitwodimensional 2d films of metalchalcogenides in optical microcavities permits new photonic applications of these materials. By building semiconductor microcavities across which we can apply a voltage, polaritons can be polarised. The frequency shift due to the sagnac effect occurs as a thresholdlike phenomenon for the angular velocity in a rotating microcavity.
The artificial resonances of dielectric optical microcavities can be used to enhance the detection sensitivity of evanescentwave optical fluorescence biosensors to the binding of a labeled analyte to a biospecific monolayer. Alloptical switching with bacteriorhodopsin protein coated. In order to have a good visualization for the electric field of resonant modes, a 3d rolledup microcavity was simulated using the rf module of comsol multiphysics software3. The editors have selected leading scientists who have made seminal contributions in different aspects of optical processes in microcavities. Fabricationtolerant high quality factor photonic crystal. Paritytimesymmetric whisperinggallery microcavities. Minimizing energy consumption for signal processing using optical microcavities. The optical properties of a system of coupled microcavities and the dispersion relations for the characteristic optical modes of the system are. Characterization of highq optical microcavities using confocal microscopy rajan p.
An array of gan hexagonal pyramids with a side length of 8. We measure shifts in the resonance wavelength due to the presence and pressure of acetylene gas and resolve differences in the refractive index as small as 104 in the nearir. All optical switching with bacteriorhodopsin protein coated microcavities and its application to low power computing circuits sukhdev roy,1,a mohit prasad,1,a juraj topolancik,2,b and frank vollmer2,c 1department of physics and computer science, dayalbagh educational institute, deemed university dayalbagh, agra 282 110, india. Optical micro and nanocavities underpin many of the major developments in current photonic science and technology. Download the bookshelf mobile app at or from the itunes or android store to access your ebooks from your mobile device or ereader.
Optical modes in deformed microcavities do not have good modequantum numbers due to absence of rotational symmetry or nonintegrability of system. This video briefly summarizes my work during the 2015 optics in the city of light reu program in paris. Nonlinear photoniccrystal microresonators offer unique fun. Claude amra, david petiteau, myriam zerrad, sebastien guenneau, gabriel soriano, et al analogies between optical propagation and heat diffusion. Tuning optical microcavities inventors randall goldsmith, kevin heylman since its founding in 1925 as the patenting and licensing organization for the university of wisconsinmadison, warf has been working with business and industry to transform university research into products that benefit society. Meanwhile, optical microcavities have also found a broad range of applications since their debut two decades ago 6, 7, from coherent light sources in integrated photonic circuits to cavity. The influence of anisotropy results in the suppression or enhancement of the pseudospin precession of polaritons scattered into different directions.
Devices based on optical microcavities are already indispensable for a wide range of appl. Mar 21, 2012 minimizing energy consumption for signal processing using optical microcavities. Chains of coupled square dielectric optical microcavities. Barclay, and oskar painter department of applied physics, california institute of technology. Figure s4b depicts the illustration of the scheme used here. Jul 12, 2018 optical microcavities are a class of photonic crystals pcs that confine light to small volumes by resonant recirculation of electromagnetic waves within the pcs structure. Aug 14, 2003 in quantum optical devices, microcavities can coax atoms or quantum dots to emit spontaneous photons in a desired direction or can provide an environment where dissipative mechanisms such as spontaneous emission are overcome so that quantum entanglement of radiation and matter is possible. Microcavities are semiconductor, metal, or dielectric structures providing optical confinement in one, two or three dimensions.
A bus waveguide of width t at a distance gw is evanescently coupled to one end of the chain. At the end of the 20th century, microcavities have attracted attention due to the discovery of a strong excitonlight coupling regime allowing for the formation of superposition lightmatter quasiparticles. Handbook of optical microcavities crc press book an optical cavity confines light within its structure and constitutes an integral part of a laser device. Optical properties of a system of two coupled vertical. Twodimensional metalchalcogenide films in tunable optical. The calculated mode spacing agrees very well with the observations. Alloptical switching with bacteriorhodopsin protein coated microcavities and its application to low power computing circuits sukhdev roy,1,a mohit prasad,1,a juraj topolancik,2,b and frank vollmer2,c 1department of physics and computer science, dayalbagh educational institute, deemed university dayalbagh, agra 282 110, india. Chois excellent handbook of optical microcavities is particularly timely. Below the lasing threshold, quality factor enhancement by optical gain allows resolving, in the wavelengthscanning transmission spectrum, the resonance dips of the split modes which otherwise would not be detected in a passive resonator. Enhanced nonlinear optics in photoniccrystal microcavities. The stokes soliton forms and regenerates by optimizing its raman interaction in space and time within an optical potential well shared with another soliton. The circulation of light within dielectric volumes enables storage of optical power near specific resonant frequencies and is important in a wide range of fields including cavity quantum. Simulations of rolledup optical microcavities using comsol shilong li national laboratory for infrared physics shanghai institute of technical physics chinese academy of sciences excerpt from the proceedings of the 2016 comsol conference in shanghai. The stokes and the initial soliton belong to distinct transverse mode families and benefit from a form of soliton trapping that is new to microcavities and soliton lasers in general.
Here we present tunable microcavities with monolayer mos 2 or few monolayer gase films. Optical microcavities are a class of photonic crystals pcs that confine light to small volumes by resonant recirculation of electromagnetic waves within the pcs structure. Optical microcavities with volumes approaching a cubic wavelength are being fabricated in a wide variety of condensed matter systems including glasses, semiconductors and organic materials. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. It is shown that the interaction of two localized optical modes in coupled microcavities cause the modes to split. Analogies between optical propagation and heat diffusion. By using a combination of topdown and bottomup strategies see fig.
The interaction of two localized optical states in a structure consisting of a system of two coupled vertical microcavities is studied. Characterization of highq optical microcavities using. Tunable resonant optical microcavities by selfassembled templating g. This means that the electron and hole pairs which make them up are separated to opposite sides of the thin layers in which they are formed. Optical processes in microcavities advanced applied physics chang, richard k, campillo, a j on. Given the sheer diversity of materials, wavelengths, cavity configurations, and applications being investigated, the organised overview provided by dr. Optical resonance modes in gan pyramid microcavities. After the process finishes, youll see the download icon a cloud with a downward pointing arrow next to items that are available for download. Three types of optical resonance modes with mode spacings of 10, 5. Semiconductor optical microcavities for chipbased cavity qed. It was shown that a single pyramidal cavity can support several different types of optical resonance modes. We observe significant modification of spectral and temporal properties of photoluminescence pl. Biosensing with optical microcavities spie digital library.
So were developing an entirely new fabrication process. An optical ray tracing method has been developed for calculating the optical resonance modes inside the pyramid microcavities. Such system has obvious advantages for applications in optical devices. Using a simple approximation, we will take into account only three processes. In quantum optical devices, microcavities can coax atoms or quantum dots to emit spontaneous photons in a desired direction or can provide an environment where dissipative mechanisms such as spontaneous emission are overcome so that quantum entanglement of radiation and matter is possible. Propagating, directionally dependent, polarized spincurrents are created in an anisotropic planar semiconductor microcavity, via rayleigh scattering of optically injected polaritons in the optical spin hall regime. Mathematical, physical and engineering sciences, royal society. Optical mode properties of 2d deformed microcavities. The dielectric microstructures act as ultrahigh q factors optical cavities, which modify the spontaneous emission rates and alter the spatial distributions of the input and output radiation. Jul 27, 2015 this video briefly summarizes my work during the 2015 optics in the city of light reu program in paris. Optomechanically tuned electromagnetically induced transparencylike effect in coupled optical microcavities guanyu li,1 xiaoshun jiang,1,a shiyue hua,1 yingchun qin,1 and min xiao1,2 1national laboratory of solid state microstructures, college of engineering and applied sciences, nanjing university, nanjing 210093, china. Fabricationtolerant high quality factor photonic crystal microcavities.
An optical microcavity or microresonator is a structure formed by reflecting faces on the two sides of a spacer layer or optical medium, or by wrapping a waveguide in a circular fashion to form a ring. Physics department and research laboratory of electronics, mit, cambridge, ma 029, usa abstract. Optical processes in microcavities advanced applied. Offline computer download bookshelf software to your desktop so you can view your ebooks with or without internet access.
Devices based on optical microcavities are already indispensable for a wide range of applications and studies. Scattering induced mode splitting in active microcavities is demonstrated. Optical microcavities storing light for a long time in a small volume microcavity characteristics. Optical processes in microcavities a new generation of optical microresonators is making possible the exploration of quantum electrodynamic phenomena in condensed matter systems and providing microlasers with a wide range of potential applications. The observed sensitivity of this device enhanced due to the. Armani2, 1division of biology, mc 974 california institute of technology, pasadena, california 91125, usa 2mork family department of chemical engineering and materials science, university of southern california. Studies of optical microresonators with dimensions between 0. The stokes soliton forms and regenerates by optimizing its raman interaction in space and time within an opticalpotential well shared with another soliton. Investigations of optical coupling to uhq microcavities using tapered, optical fibers are also described and show that highly efficient coupling can be obtained, with efficiencies in excess of 99%.
Tunable resonant optical microcavities by selfassembled. Simulations of rolledup optical microcavities using. We study theoretically and numerically the effect of rotation on resonant frequencies of microcavities in a rotating frame of reference. Optical microcavities are structures that enable confinement of lightto microscale volumes. Steve blair and yan chen biosensing with optical microcavities, proc.
Enhanced nonlinear optics in photoniccrystal microcavities jorge bravoabad, alejandro rodriguez, peter bermel, steven g. Optical microcavities advanced series in applied physics. May 21, 2001 the artificial resonances of dielectric optical microcavities can be used to enhance the detection sensitivity of evanescentwave optical fluorescence biosensors to the binding of a labeled analyte to a biospecific monolayer. Fabricationtolerant high quality factor photonic crystal microcavities kartik srinivasan, paul e. The former type is a standing wave cavity, and the latter is a traveling wave cavity. These microsized pyramids are highly efficient microcavities. Cavity rotation causes the shifts of the resonant frequencies proportional to the rotation rate if it is larger than a certain value. In september 2017, apple updated itunes to version 12. Stokes soliton in optical microcavities request pdf. Aug 14, 2003 optical microcavities confine light to small volumes by resonant recirculation.
We demonstrate a chipscale photonic system for the roomtemperature detection of gas composition and pressure using a slotted silicon microring resonator. This work was completed with the support and funding. N2 the sagnac effect in rotating microcavities is studied theoretically and numerically. Optical microcavities in condensed matter systems sciencedirect. Emission patterns of optical microcavities youtube.
Alloptical switching with bacteriorhodopsin protein. Optical microcavities confine light to small volumes by resonant recirculation. The universal importance of these structureshas made them indispensable to a wide range of fields. Osa onchip gas detection in silicon optical microcavities. Unlike traditional gas lasers, semiconductor lasers are invariably much smaller in dimensions, making optical confinement more critical than ever. Organic microcavity has recently attracted attention due to the large vacuum rabi splitting energy of cavity polaritons ca. For example, the resonant spectrum of a rolledup optical microcavity is well defined by simply tailoring the rolling length before it rolls 2, as shown in fig. Simulations of rolledup optical microcavities using comsol. Using total internal reflection from a dielectric interface or a photonic band gap in a periodic system, these photonic structures do not rely on conventional metalcoated mirrors to confine. The pump laser was input at port 1 and the probe signal was input at port 1 or at port 4. The rise and fall of itunes, apples most hated app the verge.
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