Waferscale arrays of highq silica optical microcavities erol ozgur,1,ersin huseyinoglu,1 and aykutlu dana1,2. 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. Onchip optical microcavities shiyun lin and kenneth b. 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. Optical properties and resonant cavity modes in axial.
Field representation for optical defect resonances in multilayer microcavities using quasinormal modes m. His book, optical processes in microcavities, with anthony campillo was the. A pdf can contain searchable ocr text, which can be searched upon, or extracted and used within a document management system. To process optical signals, optical microcavities need to be utilized, these can stop light and allow a. Fabricationtolerant high quality factor photonic crystal. This paper describes the generation and optical characterization of a series of dyedoped dropletbased optical microcavities with continuously decreasing radius in a microfluidic channel. They are the basis of numerous applied and fundamental studies, such as cavity qed, photonics and sensing. Optical microcavities with tubular geometry wiley online library.
Highquality factor optical microcavities using oxide. 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. Enhanced nonlinear optics in photoniccrystal microcavities. 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. Scattering processes in an optical microcavity are investigated for the case of silicon nanocrystals embedded in an ultrahigh q toroid microcavity. 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 former type is a standing wave cavity, and the latter is a traveling wave cavity. Optical measurements of polariton strong coupling in. These tubular optical microcavities enable researchers to explore and.
The response of molecules to local fluctuations is incorporated and the full dynamics is monitored through the time. 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. Sukhdev roy,1,a mohit prasad,1,a juraj topolancik,2,b and frank vollmer2,c. Photoinduced transformations in bacteriorhodopsin membrane monitored with optical microcavities juraj topolancik and frank vollmer rowland institute at harvard, harvard university, cambridge, massachusetts abstract photoinduced molecular transformations in a selfassembled bacteriorhodpsin br monolayer are monitored by. Imaging soliton dynamics in optical microcavities nature. Ballistic trajectories of optical wave packets within. Purcell factor enhanced scattering efficiency in optical microcavities. Studies of optical microresonators with dimensions between 0. Optical spectroscopy of gan microcavities with thicknesses.
Review on deformed and perturbed optical microcavities h. Giant optical nonlinearities from rydberg excitons in. Optical microcavities confine light at resonant frequencies for extended periods of time and fundamentally alter the interaction of light with matter. Optical measurement of polariton strong coupling in semiconductor microcavities jacob hartman faculty mentor. Molecular polaritons created by the strong coupling between matter and field in microcavities enable the control of molecular dynamical processes and optical response. 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. Minimizing energy consumption for signal processing using.
Nonlinear photoniccrystal microresonators offer unique fun. Optical microcavities are structures that enable confinement of light to microscale volumes. Optical microcavities combined with active emitters provide a great opportunity to study the lightmatter interaction at a fundamental level. 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. Nonlinear optics in ultrahighq whisperinggallery optical. Rolledup optical microcavities with subwavelength wall. Unlike traditional gas lasers, semiconductor lasers are invariably much smaller in dimensions, making optical confinement more critical than ever. 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. Analytical development and application of optical microcavities by sarah m. Optical measurement of polariton strong coupling in. Of all resonant geometries, surface tensioninduced microcavities. Quantum dot spontaneous emission li fetime modification in. An overview of the theory of the linear optical response of planar semiconductor microcavities with embedded quantum wells is presented.
Quantum electrodynamics of semiconducting nanomaterials in optical microcavities abstract. In particular, the optical properties close to the excitonic transition in the strong coupling regime are addressed and the formalism of. Quantum electrodynamics of semiconducting nanomaterials in. Microcavities are wavelengthsized optical cavities that trap light at specific wavelengths. 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. Trappingassisted sensing of particles and proteins using. To produce a highquality microcavity, it is necessary to con. Introduction exceptional points in microcavities exceptional point ep point in parameter space at which two or more eigenvalues and eigenstates of a nonhermitian linear. Polaritons are a mixture of photons and semiconductor excitons that display different properties from either the. Field representation for optical defect resonances in. Therefore, a fabrication process utilizing all advantages of batch production, including photolithography, wet etch, and dry etch, transforms into a. Controlled coupling of semiconductor quantum dots to optical microcavities, by tian xia isbn.
Development of new fabrication processes and introduction of new. The resonant modes inside the optical microcavities are modelled analytically by the use of maxwell equations. Tunable resonant optical microcavities by selfassembled. 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. In the soliton decay process, the average intracavity energy decays exponentially and its time constant equals the dissipation rate of the cavity. 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. 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. Fabricationtolerant high quality factor photonic crystal microcavities.
Optical measurements of polariton strong coupling in semiconductor microcavities jacob hartman, ryan balili figure 2. Optical microcavities confine light to small volumes by resonant recirculation. 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. Fabricationtolerant high quality factor photonic crystal microcavities kartik srinivasan, paul e. This confinement allows photons trapped in the microcavity to strongly interact with matter, creating new quasiparticles called polaritons. Using total internal reflection from a dielectric interface or a photonic band gap in a periodic system. Net coherent optical gain in strongly pumped semiconductor. Multidimensional infrared spectroscopy is proposed for monitoring the polaritonassisted cooperative properties. Alloptical switching with bacteriorhodopsin protein coated microcavities and its application to low power computing circuits. We consider the electromagnetic field propagating with an angular frequency. Analogies between optical propagation and heat diffusion. Handbook of optical microcavities crc press book an optical cavity confines light within its structure and constitutes an integral part of a laser device. Pdf lightconfining semiconductor nanoporous anodic.
Asymmetric backscattering of light and exceptional points. Optical processes in microcavities advanced applied. 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. Edwards department of physics and applied physics, university of strathclyde, glasgow g4 0ng, scotland. Alloptical switching with bacteriorhodopsin protein. Linear optical properties of semiconductor microcavities. Enhanced nonlinear optics in photoniccrystal microcavities jorge bravoabad, alejandro rodriguez, peter bermel, steven g. Waferscale arrays of highq silica optical microcavities. Abstract an oxide aperture is used to confine optical modes in a micropillar structure. Continuously tunable microdropletlaser in a microfluidic. Pdf imaging soliton dynamics in optical microcavities. The universal importance of these structures has made them indispensable to a wide range of fields. Quantum dot spontaneous emission li fetime modification in optical microcavities using oxide apertured micropillars n. Reduction of toroidal cross section is observed to cause a.
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