Cavity quantum electrodynamics, a central research field in optics and solidstate physics1,2,3, addresses properties of atomlike emitters in cavities and can be. They are the basis of numerous applied and fundamental studies, such as cavity qed, photonics and sensing. Here, we propose a novel approach that realizes the state transfer between different modes in optical microcavities by tuning the frequency of. Optical bistability in semiconductor microcavities a. They can, for example, modify the spatial distribution of. Optical computing for fast light transport analysis matthew otoole. In order to fabricate mesas with precisely such facets, a wetchemical etching process including several selective etching steps. Frequencytuning induced state transfer in optical microcavities. The two microcavities of specific interest are planar photonic crystal defect resonators and microdisk resonators. Nov 11, 2004 cavity quantum electrodynamics, a central research field in optics and solidstate physics1,2,3, addresses properties of atomlike emitters in cavities and can be divided into a weak and a strong. Devices based on optical microcavities are already indispensable for a wide range of appl. Optical processes in microcavities advanced applied physics. These structures enable one to control the optical emission properties of materials placed inside them. We embed a hyperbolic metamaterial based on stacked layer pairs of epitaxially grown znozno.
Rolledup optical microcavities with subwavelength wall. Nonlinear optics in ultrahighq whisperinggallery optical. 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. Semiconductor microcavities are solid state devices that display quantum phases of strongly coupled light and matter microcavities are wavelengthsized optical cavities that trap light at specific wavelengths. Apr 03, 1992 physics and device applications of optical microcavities. N2 the sagnac effect in rotating microcavities is studied theoretically and numerically. Instead of seeing patients as oneoff customers, bard optical eye doctors see patients as neighbors and friends and treat them accordingly. New, nonlinear sources using highq microcavities kerry vahala. Tunable resonant optical microcavities by selfassembled templating g. Labelfree, singlemolecule detection with optical microcavities. Highcontrast alloptical bistable switching in photonic. Heres why bard optical has the best optometrists in rock island.
The frequency shift due to the sagnac effect occurs as a thresholdlike phenomenon for the angular velocity in a rotating microcavity. Semiconductor optical microcavities for chipbased cavity qed. Label free, singlemolecule detection with optical microcavities. In addition to the benefits of a waferscale geometry, including integration with optical, electrical or mechanical functionality, microtoroids onachip exhibit single mode raman. Optical microcavities in condensed matter systems sciencedirect. 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. The universal importance of these structureshas made them indispensable to a wide range of fields. Theoretical and experimental study of stimulated and cascaded. Handbook of optical microcavities crc press book an optical cavity confines light within its structure and constitutes an integral part of a laser device.
Alloptical switching with bacteriorhodopsin protein. Semiconductor optical microcavities for chipbased cavity. Emission patterns of optical microcavities youtube. 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. Ahead of the 2018 shot show valhalla needed to announce the new release of their product line here in the us. Hecht e zajac optics 4th ed 2003 ebook download as pdf file. Keeping in mind the decreasing size of the top dbr, this is consistent. Microcavities are semiconductor, metal, or dielectric structures providing optical confinement in one, two or three dimensions. Strong coupling in a single quantum dotsemiconductor.
This confinement allows photons trapped in the microcavity to strongly interact with matter, creating new quasiparticles called polaritons. In combination with monolayers of transitionmetal dichalcogenides tmdcs such as ws2, which exhibits a large exciton oscillator strength. Optical microcavities are structures that enable confinement of lightto microscale volumes. We propose a novel approach in optical trapping exploiting mesoscopic photonic crystal microcavities. The research on cavity solitons has been performed mainly on two platforms. Elastomer based electrically tunable, optical microcavities. Optical computing for fast light transport analysis. Jul 27, 2015 this video briefly summarizes my work during the 2015 optics in the city of light reu program in paris. 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. The editors have selected leading scientists who have made seminal contributions in different aspects of optical processes in microcavities. Optical trapping in 1d mesoscopic photonic crystal microcavities.
Optical devices for optical communication systems selection map of optical devices over 10gbps new product under development 1. As a singlemode, ultralow threshold lasers, dielectric. Of all resonant geometries, surface tensioninduced microcavities, such as silica microspheres, exhibit the highest qfactor to date of. This video briefly summarizes my work during the 2015 optics in the city of light reu program in paris.
May 25, 2018 fifth iqoqi colloquium with jakob reichel on tuesday, 22 may 2018. The success of this overgrowth depends strongly on the crystallographic orientation of the pyramid facets and shows best results for 1 1 4 a facets. Abdelsalam school of chemistry, university of southampton, southampton so17 1bj, uk received january 15, 2004. Optical trapping in 1d mesoscopic photonic crystal.
Stokes soliton in optical microcavities request pdf. Single nanoparticle detection using optical microcavities. Optical microcavities confine light at resonant frequencies for extended periods of time and fundamentally alter the interaction of light with matter. Given the sheer diversity of materials, wavelengths, cavity configurations, and applications being investigated, the organised overview provided by dr. Anomalous resonances of an optical microcavity with a hyperbolic. Like a tuning fork for light, optical resonators have a characteristic set of frequencies at which it is possible to confine light waves. The name microcavity stems from the fact that it is often only a few micrometers thick, the spacer layer. Full light confinement in mesoscopic photonic crystal membranes, forming a mesoscopic selfcollimating 1d fabryperot cavity, was theoretically predicted and experimentally verified by the authors in previous papers.
This work was completed with the support and funding. 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. The first part of this thesis details the development. 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. 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.
Theoretical and experimental study of stimulated and. Microcavities are wavelengthsized optical cavities that trap light at specific wavelengths. Optical mode properties of 2d deformed microcavities. To study the optical modes in the processed microcavities, a confocal microphotoluminescence pl setup with a variable temperature cryostat was used. For ri detection some architectures including optical microcavities 7, antiresonant reflecting optical waveguides arrows 8,9, optical ring resonators 101112 and photonic crystals. An optical cavity confines light within its structure and constitutes an integral part of a laser device. The quality of optical modes exhibit strong correlation to the visually observable quality of the top dbr.
The optical properties of a system of coupled microcavities and the dispersion relations for the characteristic optical modes of the system are. Tunable resonant optical microcavities by selfassembled. This work is supported in part by the german research foundation dfg within the cluster of excellence center for advancing electronics dresden cfaed and by the european social fund via the organomechanics project. Optical microcavities can be characterized by two key quantities. Unlike traditional gas lasers, semiconductor lasers are invariably much smaller in dimensions, making optical confinement more critical than ever. Devices based on optical microcavities are already indispensable for a wide range of applications and studies. Valhalla s nononsense approach to customer service and worldclass warranty, valhalla optics is worth checking out. Optical properties of a system of two coupled vertical. The interaction of two localized optical states in a structure consisting of a system of two coupled vertical microcavities is studied. As a singlemode, ultralow threshold lasers, dielectric microdisks and microspheres have been. K acknowledge support by the scottish funding council via supa and the human frontier science program rg007420. In partial fulfillment of the requirements for the degree of. Giant optical nonlinearities from rydberg excitons in. Optical cavities have been fabricated by overgrowth of truncated gaas pyramids with a distributed bragg reflector.
Burge 8 issues with the sharp corner provides highest accuracy, and is easy to verify potentially large contact stresses for most applications, these will not cause any risk sharp corners are susceptible to damage or to burrs standard practice of breaking corners will result in loss of accuracy sharp corner with radius 0. Overview a whispering gallery mode wgm is a type of electromagnetic wave that travels. Optical microcavities confine light to small volumes by resonant recirculation. The sidebyside study of nonlinear oscillation in both spherical microcavities and toroid microcavities onachip also allows for comparison of their properties. Bard optical is a proud member of the rock island community.
Schwefel 4 1 department of engineering science and physics, college of staten island, cuny, staten island, new york 10314, usa. Optical bistable devices are of great importance for alloptical information processing applications. We demonstrate an alternative device based on an electrically tunable microcavity employing a dielectric soft elastomer actuator. Optical microcavities fabricated by dbr overgrowth of.
The long, energystorage time and small form factor of these ultrahighq uhq resonators enable access to an amazingly wide range of nonlinear phenomena and creation of laser devices with remarkable properties. Rolledup optical microcavities with subwavelength wall thicknesses for enhanced liquid sensing applications gaoshan huang, vladimir a. Optical microcavities are resonators that have at least one dimension on the order of a single optical wavelength. Schmidt institute for integrative nanosciences, ifw dresden, helmholtzstr. Chois excellent handbook of optical microcavities is particularly timely. The former type is a standing wave cavity, and the latter is a traveling wave cavity. Fifth iqoqi colloquium with jakob reichel on tuesday, 22 may 2018.
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. Bolanos quinones, fei ding, suwit kiravittaya, yongfeng mei,, and oliver g. It is shown that the interaction of two localized optical modes in coupled microcavities cause the modes to split. Tunable optical elements are mostly realized by microelectromechanical systems, which require expensive and complex lithography during processing. This confinement allows photons trapped in the microcavity to strongly interact with matter, creating new quasiparticles called. Aug 14, 2003 optical microcavities confine light to small volumes by resonant recirculation. Cavities with a small veff and a high q offer the promise for applications in nonlinear optics, sensing, and cavity quantum electrodynamics. 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. Optical microcavities have a wide range of applications and are used for fundamental studies, such as strongcoupling cavity quantum electrodynamics, enhancement and suppression of spontaneous emission, novel light sources, and dynamic filters in optical communication vahala, 2003. Polaritons are a mixture of photons and semiconductor excitons that display different properties from either the. Vahala california institute of technology, mail stop 12895, pasadena, california 91125, usa email. 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.
The q factor of optical modes stays almost constant for different shapes and sizes of 1 1 4 afaceted mesas, if the top surface of the cavity is wider than 4. The wisconsin alumni research foundation warf is seeking commercial partners interested in developing a method for tuning the resonance frequencies of ultrahighquality factor toroidal optical microcavities. Physics and device applications of optical microcavities. Optical micro and nanocavities underpin many of the major developments in current photonic science and technology.