Semiconducting nanocrystals in openaccess microcavities are promising systems in which enhanced lightmatter interactions lead to quantum effects such as the modulation of the spontaneous emission process and excitonpolariton formation. Studies of optical microresonators with dimensions between 0. Pdf imaging soliton dynamics in optical microcavities. Introduction exceptional points in microcavities exceptional point ep point in parameter space at which two or more eigenvalues and eigenstates of a nonhermitian linear. Highquality factor optical microcavities using oxide. Controlled coupling of semiconductor quantum dots to. The former type is a standing wave cavity, and the latter is a traveling wave cavity. 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. The response of molecules to local fluctuations is incorporated and the full dynamics is monitored through the time.
The resonant modes inside the optical microcavities are modelled analytically by the use of maxwell equations. Analytical development and application of optical microcavities by sarah m. Optical measurements of polariton strong coupling in semiconductor microcavities jacob hartman, ryan balili figure 2. Rolledup optical microcavities with subwavelength wall. Optical spectroscopy of gan microcavities with thicknesses controlled using a plasma etchback r. Imaging soliton dynamics in optical microcavities nature. Therefore, a fabrication process utilizing all advantages of batch production, including photolithography, wet etch, and dry etch, transforms into a. This paper describes the generation and optical characterization of a series of dyedoped dropletbased optical microcavities with continuously decreasing radius in a microfluidic channel. Nonlinear photoniccrystal microresonators offer unique fun. Of all resonant geometries, surface tensioninduced microcavities. Optical microcavities combined with active emitters provide a great opportunity to study the lightmatter interaction at a fundamental level. Edwards department of physics and applied physics, university of strathclyde, glasgow g4 0ng, scotland. Linear optical properties of semiconductor microcavities. Optical microcavities confine light to small volumes by resonant recirculation.
These tubular optical microcavities enable researchers to explore and. Polaritons are a mixture of photons and semiconductor excitons that display different properties from either the. Development of new fabrication processes and introduction of new. In the soliton decay process, the average intracavity energy decays exponentially and its time constant equals the dissipation rate of the cavity.
Quantum dot spontaneous emission li fetime modification in. Alloptical switching with bacteriorhodopsin protein coated microcavities and its application to low power computing circuits. Enhanced nonlinear optics in photoniccrystal microcavities. Optical microcavities confine light at resonant frequencies for extended periods of time and fundamentally alter the interaction of light with matter. Quochi et al optical gain in strongly pumped sc microcavities 9. His book, optical processes in microcavities, with anthony campillo was the. 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. 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. They are the basis of numerous applied and fundamental studies, such as cavity qed, photonics and sensing. Reduction of toroidal cross section is observed to cause a. An extensive study on the structural engineering of titanium dioxidefunctionalized nanoporous anodic alumina optical microcavities tio2naauqvs for photocatalysis enhanced by light confinement.
Controlled coupling of semiconductor quantum dots to optical microcavities, by tian xia isbn. Waferscale arrays of highq silica optical microcavities erol ozgur,1,ersin huseyinoglu,1 and aykutlu dana1,2. Onchip optical microcavities shiyun lin and kenneth b. To produce a highquality microcavity, it is necessary to con. Waferscale arrays of highq silica optical microcavities. Optical measurement of polariton strong coupling in. Microcavities are wavelengthsized optical cavities that trap light at specific wavelengths. Minimizing energy consumption for signal processing using. Analogies between optical propagation and heat diffusion. Optical measurement of polariton strong coupling in semiconductor microcavities jacob hartman faculty mentor. Field representation for optical defect resonances in.
Optical processes in microcavities advanced applied. The universal importance of these structures has made them indispensable to a wide range of fields. A pdf can contain searchable ocr text, which can be searched upon, or extracted and used within a document management system. Unlike traditional gas lasers, semiconductor lasers are invariably much smaller in dimensions, making optical confinement more critical than ever. Enhanced nonlinear optics in photoniccrystal microcavities jorge bravoabad, alejandro rodriguez, peter bermel, steven g. Ballistic trajectories of optical wave packets within. Optical properties and resonant cavity modes in axial.
Abstract an oxide aperture is used to confine optical modes in a micropillar structure. Pdf lightconfining semiconductor nanoporous anodic. Quantum electrodynamics of semiconducting nanomaterials in optical microcavities abstract. This book begins with a chapter on the role of microcavity modes with additional chapters on how these microcavity modes affect the spontaneous and stimulated emission rates, enhance nonlinear optical processes, used in cavityqed and chemical physics experiments, aid in singlemolecule detection, influence the design of microdisk semiconductor lasers, and how deformed cavities can be treated. 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. Crozier school of engineering and applied sciences, harvard university, 33 oxford street, cambridge, massachusetts 028, united states remarkable results have been recently obtained on the highly sensitive detection of analytes via the resonance shifts that result when they bind to the. Scattering processes in an optical microcavity are investigated for the case of silicon nanocrystals embedded in an ultrahigh q toroid microcavity. Purcell factor enhanced scattering efficiency in optical microcavities. Fabricationtolerant high quality factor photonic crystal.
Quantum dot spontaneous emission li fetime modification in optical microcavities using oxide apertured micropillars n. Continuously tunable microdropletlaser in a microfluidic. Review on deformed and perturbed optical microcavities h. This confinement allows photons trapped in the microcavity to strongly interact with matter, creating new quasiparticles called polaritons. This is the process that ocr processes the raw scanned files and creates a searchable pdf, or a separate text file in the case of files that cannot contain text, such as tiff or jpeg scanned files. Optical spectroscopy of gan microcavities with thicknesses. Giant optical nonlinearities from rydberg excitons in. Setup with functionality varying based on method to characterize the energy signatures of the polaritons which have become extremely difficult to detect, as is the cost of using highquality microcavities, we used three different.
Request pdf optical microcavities optical microcavities confine light to small. Optical processes in microcavities advanced series in applied physics optical processes in microcavities advanced series in applied physics the dielectric microstructures act as ultrahigh q factors optical cavities, which modify the spontaneous emission rates and alter the spatial distribution of the input and output radiation. Asymmetric backscattering of light and exceptional points. Quantum electrodynamics of semiconducting nanomaterials in. Using total internal reflection from a dielectric interface or a photonic band gap in a periodic system. Nonlinear optics in ultrahighq whisperinggallery optical.
Field representation for optical defect resonances in multilayer microcavities using quasinormal modes m. Alloptical switching with bacteriorhodopsin protein. Sukhdev roy,1,a mohit prasad,1,a juraj topolancik,2,b and frank vollmer2,c. Trappingassisted sensing of particles and proteins using. 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. Molecular polaritons created by the strong coupling between matter and field in microcavities enable the control of molecular dynamical processes and optical response. In particular, the optical properties close to the excitonic transition in the strong coupling regime are addressed and the formalism of. Optical measurements of polariton strong coupling in. Optical microcavities are structures that enable confinement of light to microscale volumes.
To process optical signals, optical microcavities need to be utilized, these can stop light and allow a. Multidimensional infrared spectroscopy is proposed for monitoring the polaritonassisted cooperative properties. Their recent demonstration in optical microresonators has provided a new platform for the study of nonlinear optical physics with practical implications for miniaturization of time standards. Minimizing energy consumption for signal processing using optical microcavities. We consider the electromagnetic field propagating with an angular frequency. Optical microcavities with tubular geometry wiley online library. Handbook of optical microcavities crc press book an optical cavity confines light within its structure and constitutes an integral part of a laser device. Fabricationtolerant high quality factor photonic crystal microcavities. Fabricationtolerant high quality factor photonic crystal microcavities kartik srinivasan, paul e.
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