Direct spectroscopy of a deep two-dimensional photonic crystal microresonator

Kramper, P.; Birner, A.; Agio, Mario; Soukoulis, C. M.; Müller, Frank; Gösele, U.; Mlynek, J.; Sandoghdar, Vahid

doi:10.1103/physrevb.64.233102

Cited by 47 publications

(38 citation statements)

References 31 publications

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“…On the other hand, four air holes, i.e., a sort of point defects, have been introduced at the center of said silicon waveguide of PhCWG to form a resonator structure. It is reported that two of high-resonances centered at wavelengths 3.621 and 3.843 m. The quality factors of these two resonant wavelength peaks were measured as 640 and 190, respectively [20]. Sandoghdar et al have applied scanning near-field optical microscopy (SNOM) to visualize the optical intensity topography around these four air holes of this microresonator structure.…”

Section: Configuration and Modeling Of Phcwg Microresonator Devicesmentioning

confidence: 99%

“…We conduct the simulation throughout the whole study upon this assumption. In contrast to the case of the layout dimensions used in [20] and [21], i.e., designing for resonant wavelengths in far infrared region, we optimize our PhCWG designs to enable the output resonant wavelength peaks appeared in the wavelength range of 1550 to 1620 nm, i.e., the near-infrared region. The common optical spectrum analyzer (OSA) used in optical communication industry can give us down to a 0.1-nm resolution of measuring resonant wavelength within this region.…”

Section: Configuration and Modeling Of Phcwg Microresonator Devicesmentioning

confidence: 99%

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Design and Modeling of a Nanomechanical Sensor Using Silicon Photonic Crystals

Lee

Radhakrishnan

Chen

et al. 2008

J. Lightwave Technol.

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Abstract-Conventionally a line defect in the photonic crystal (PhC) is used to create a waveguide for light propagation through the PhC. A PhC based filter is designed by introducing micro-cavities within the line defect so as to form the resonant bandgap structure for PhC. Such a PhC waveguide (PhCWG) filter shows sharp resonant peak in output wavelength spectrum. We proposed a suspended silicon bridge structure comprising this PhCWG filter structure. Since the output resonant wavelength is sensitive to the shape of air holes and defect length of the micro-cavity. Shift of the output resonant wavelength is observed for suspended PhCWG beam structure under particular force loading. In other words, the induced strain modifies the shape of air holes and the spacing among them. Such an effect leads to shift of resonant wavelength. Under optical detection limitation of 0.1 nm for resonant wavelength shift, the sensing capability of this nanomechanical sensor is derived as that vertical deformation is 20-25 nm at the center and the smallest strain is 0.005% for defect length. This innovative design conceptualizes a new application area for PhCs, i.e., the nanometer-scale physical sensors for strains and forces. Index Terms-Microelectromechanical systems (MEMS), nanoelectromechanical systems (NEMS), nanomechanical sensor, nanophotonics, photonic crystals (PhCs).

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Section: Configuration and Modeling Of Phcwg Microresonator Devicesmentioning

confidence: 99%

Section: Configuration and Modeling Of Phcwg Microresonator Devicesmentioning

confidence: 99%

Design and Modeling of a Nanomechanical Sensor Using Silicon Photonic Crystals

Lee

Radhakrishnan

Chen

et al. 2008

J. Lightwave Technol.

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“…When the coupling conditions are satisfied, the resonant mode confined near the sensor surface is excited, and exhibits amplified field intensity, which enhances the fluorescent dye emission immobilized within a 200 nm region above the PC surface [25]. Unlike evanescent coupled optical micro-or nano-resonators [26,27], which require highly precise position control, input light is coupled into PC resonator mode via angle and wavelength control. When most of the excitation beam is coupled into resonant mode, the near field strength becomes strong and consequently the PC sensor provides fluorescence enhancement.…”

Section: Chapter 2: Coupling Of Pc Sensor and Excitation Lightmentioning

confidence: 99%

Optimization of photonic crystal enhanced fluorescence by excitation laser angle scanning

Chaudhery

Lu²,

Pokhriyal

et al. 2011

2011 11th IEEE International Conference on Nanotechnology

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Photonic crystal enhanced fluorescence (PCEF) has been demonstrated as an effective means for amplifying the excitation provided to surface-bound fluorescent molecules while simultaneously enhancing fluorescence emission collection efficiency. Optimal coupling of a fluorophore-exciting light source to the PC occurs with the use of collimated plane waves, as utilized in a special-purpose fluorescence microscope specifically designed for coupling with PCEF surfaces. However, PCEF surfaces are also capable of coupling light from focused sources, such as those used in commercially available confocal laser scanners, but with a reduction in the obtainable enhancement factor. Using computer simulations and experimental measurements, we describe the interaction between the resonant bandwidth of a PCEF device surface and the optical design of the detection instrumentation that is used to provide fluorescence excitation. We show that highly collimated illumination is required for achieving the greatest PCEF enhancement factors, but at the expense of poor tolerance to nonuniformities in resonant wavelength across the PCEF surface. To overcome this limitation, we demonstrate a fixed wavelength/multiple incident angle scanning detection system that is capable of measuring every pixel in a PCEF fluorescence image under conditions that optimize resonant excitation efficiency. Finally we discuss the enhanced excitation mechanism for photonic crystal enhanced fluorescence in the context of photobleaching. We show that the photobleaching rate of dye molecules on the photonic crystal surface is accelerated by 30x compared to an ordinary glass surface, but substantial signal gain is still evident, even after extended periods of continuous illumination at the resonant condition.iii ACKNOWLEDGMENTS

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“…These systems have been the subject of considerable interest during the past several years because they have the potential to be used to develop a new technology completely based on optical integrated circuits [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Today, research in photonic crystals (PC) indicates that suitable technological applications require the design and application of photonic heterostructures rather than simple systems [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Coupling of photonic crystal–photonic crystal interface and guided modes in two-dimensional heterostructures

Guel-Tapia

Villa-Villa

Gaspar-Armenta³

et al. 2015

Opt Rev

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In this work, we propose a two-dimensional photonic crystal-photonic crystal heterostructure that possesses the requirements for exciting an electromagnetic interface mode and investigate its interaction with photonic crystal waveguide modes. To study the interaction and coupling of both types of modes, the proper conditions to excite them are analyzed. Photonic crystal guided modes can appear in nearly any band gap when the photonic crystal has a line of defects within its lattice. Photonic crystal-photonic crystal surface modes can be excited at the junction of two different photonic crystals that share translation symmetry along the interface direction and have overlapped frequency band gaps. When this condition is met, dispersion relations of photonic crystal-photonic crystal surface modes will lie in the common region of both band gaps. Once the proper conditions are provided to excite these two modes, an interaction between them is possible. In the resulting calculations, a symmetric supercell and a plane wave basis are defined to numerically solve the wave equation.

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Direct spectroscopy of a deep two-dimensional photonic crystal microresonator

Cited by 47 publications

References 31 publications

Design and Modeling of a Nanomechanical Sensor Using Silicon Photonic Crystals

Design and Modeling of a Nanomechanical Sensor Using Silicon Photonic Crystals

Optimization of photonic crystal enhanced fluorescence by excitation laser angle scanning

Coupling of photonic crystal–photonic crystal interface and guided modes in two-dimensional heterostructures

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