Photonic molecule laser composed of GaInAsP microdisks

Nakagawa, A.; Ishii, Satoru; Baba, Toshihiko

doi:10.1063/1.1855388

Cited by 113 publications

(105 citation statements)

References 15 publications

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“…However, modern lithography techniques together with optimized etching processes enable fabrication of wavelength-scale optoelectronic components such as photonic wire waveguides, microring and microdisk resonators, and photonic-crystal circuits with very high and controllable precision 32 . For example, isolated microdisks 33 and large regular microdisk arrays 34 with diameters of and below 2 µm have been fabricated with high structural and optical quality, and their experimentally measured WG-mode frequencies and Q-factors have been reported to be remarkably close to the theoretical values predicted in the frame of simplified 2-D models 16,18,33,34 . Various techniques have also been developed for the reduction of the sidewall surface roughness (which is one of the principal sources of optical modes Q-factors degradation) such as, e.g., thermal oxidation of silicon-on-insulator photonic components 35 .…”

Section: Fabrication Tolerances and On-chip Integrationmentioning

confidence: 75%

“…To overcome the aforementioned limitations, we suggest using clusters of coupled nanocavities (photonic molecules) 13 with wide free spectral range tuned to a symmetry-enhanced high-Q WG mode resonance 14 instead of a larger single microcavity. Properly designed photonic molecules (PMs) have already demonstrated high potential for the design of low-threshold microlasers [14][15][16][17] . In a previous publication 14 , we have shown that by arranging circular WG-mode microcavities into pre-designed symmetrical configurations it is possible not only to preserve but also to significantly enhance their attractive features, such as the high Q-factors, and simultaneously remove the obstacles hindering their use, namely, the WG-mode double degeneracy.…”

Section: Introductionmentioning

confidence: 99%

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Spectrally engineered photonic molecules as optical sensors with enhanced sensitivity: a proposal and numerical analysis

Boriskina

2006

J. Opt. Soc. Am. B

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We report a theoretical study of clusters of evanescently-coupled 2D whispering-gallery (WG) mode optical micro-cavities (termed "photonic molecules") as chemosensing and biosensing platforms. Photonic molecules (PMs) supporting modes with narrow linewidths, wide mode spacing, and greatly enhanced sensitivity to the changes in the dielectric constant of their environment and to the presence of individual sub-wavelengthsized nanoparticles in the PM evanescent-field region are numerically designed. This type of optical biosensor can be fabricated in a variety of material platforms and integrated on a single chip that makes it a promising candidate for a small and robust lab-on-a-chip device. Possible applications of the developed methodology and the designed PM structures to the near-field microscopy, single nano-emitter microcavity lasing, and cavity-controlled single-molecule fluorescence enhancement are also discussed.

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Section: Fabrication Tolerances and On-chip Integrationmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Spectrally engineered photonic molecules as optical sensors with enhanced sensitivity: a proposal and numerical analysis

Boriskina

2006

J. Opt. Soc. Am. B

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“…Compound, microcavity systems are sometimes called photonic molecules [14,15,16]; and herein this is a particularly apt interpretation. Hybridized orbitals of an electronic system are replaced by optical supermodes of the compound (photonic molecule) system; and transitions between their corresponding energy levels are induced by a phonon field.…”

mentioning

confidence: 99%

Phonon Laser Action in a Tunable Two-Level System

et al. 2010

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The phonon analog of an optical laser has long been a subject of interest. We demonstrate a compound microcavity system, coupled to a radio-frequency mechanical mode, that operates in close analogy to a two-level laser system. An inversion produces gain, causing phonon laser action above a pump power threshold of around 50 µW. The device features a continuously tunable, gain spectrum to selectively amplify mechanical modes from radio frequency to microwave rates. Viewed as a Brillouin process, the system accesses a regime in which the phonon plays what has traditionally been the role of the Stokes wave. For this reason, it should also be possible to controllably switch between phonon and photon laser regimes. Cooling of the mechanical mode is also possible. [10]. However, only recently has phonon laser action been reported using a harmonicallybound magnesium ion [11]. Here, using a compound microcavity system, a phonon laser that operates in close analogy to a two-level laser system is demonstrated. The approach uses intermodal coupling induced by radiation pressure [12], and can also provide a spectrally selective means to detect phonons. Moreover, there is currently great interest in optomechanical cooling [13] and evidence of intermodal cooling is observed.

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“…These have already been fabricated for applications in optical WGM and they have achieved that way even higher Q values for the optical modes. 17,18 In order to find how the elastic WGM are affected by the size of the post, cases similar to the one shown in Fig. 8 were studied.…”

Section: Resultsmentioning

confidence: 99%

Whispering gallery modes for elastic waves in disk resonators

Kaproulias

Sigalas

2011

AIP Advances

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The resonant modes of elastic waves in disk resonators are computationally studied with the finite difference time domain method. Different materials examined for the disk such as platinum and silicon. The effect of a glass substrate is also important especially in the case of silicon disks because of the similarity of sound velocities and mass densities between the two materials. The possibility of using those structures as sensors is also considered

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Photonic molecule laser composed of GaInAsP microdisks

Cited by 113 publications

References 15 publications

Spectrally engineered photonic molecules as optical sensors with enhanced sensitivity: a proposal and numerical analysis

Spectrally engineered photonic molecules as optical sensors with enhanced sensitivity: a proposal and numerical analysis

Phonon Laser Action in a Tunable Two-Level System

Whispering gallery modes for elastic waves in disk resonators

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