Semi-analytical calculation of resonant modes in axially asymmetric microtube resonators

Lan, Yingwu; Li, Shilong; Cai, Zhongyi; Mei, Yongfeng; Kiravittaya, Suwit

doi:10.1016/j.optcom.2016.10.060

Cited by 7 publications

(5 citation statements)

References 24 publications

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“…Compared with planar nanomembrane, the light emission of microtube at resonant wavelength is significantly enhanced due to the special light confinement effect in the tubular structure. Polarization of the light propagating the rolled-up nanomembrane can also be remarkably influenced by the 3D tubular geometry [173,174]. The technology of rolling planar nanomembranes avoids complex surface processing to obtain complex 3D structure [31], because by utilizing the graphic technology of Si plane process, nanomembranes of different shapes can be rolled-up [175].…”

Section: Whispering Gallery Mode Microcavity Based On Rolled-up Nanom...mentioning

confidence: 99%

“…2D materials are also applied in 3D rolled-up photodetectors. In particular, as a 2D material, MoS 2 is capable of detecting a wide range of spectrum from visible to infrared regions with high carrier mobility and tunable bandgap [173,174]. The characterization of the 3D rolled-up device shows that the photocurrent increases linearly to the light intensity, exhibiting good sensitivity.…”

Section: Microtubular Photodetectormentioning

confidence: 99%

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Nanomembrane-assembled nanophotonics and optoelectronics: from materials to applications

Huang¹,

Huang²,

Zhao³

et al. 2022

J. Phys.: Condens. Matter

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Nanophotonics and optoelectronics are the keys to the information transmission technology field. The performance of the devices crucially depends on the light-matter interaction, and it is found that three-dimensional (3D) structures may be associated with strong light field regulation for advantageous application. Recently, 3D assembly of flexible nanomembranes has attracted increasing attention in optical field, and novel optoelectronic device applications have been demonstrated with fantastic 3D design. In this review, we first introduce the fabrication of various materials in the form of nanomembrane. On the basis of the deformability of nanomembranes, 3D structures can be built by patterning and release steps. Specifically, assembly methods to build 3D nanomembrane are summarized as rolling, folding, buckling and pick-place methods. Incorporating functional materials and constructing fine structures are two important development directions in 3D nanophotonics and optoelectronics, and we settle previous researches on these two aspects. The extraordinary performance and applicability of 3D devices show the potential of nanomembrane assembly for future optoelectronic applications in multiple areas.

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Section: Whispering Gallery Mode Microcavity Based On Rolled-up Nanom...mentioning

confidence: 99%

Section: Microtubular Photodetectormentioning

confidence: 99%

Nanomembrane-assembled nanophotonics and optoelectronics: from materials to applications

Huang¹,

Huang²,

Zhao³

et al. 2022

J. Phys.: Condens. Matter

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“…The microtubes made from rolled‐up nanomembranes were previous used as optical microcavities, where optical resonance can be obtained . The microtubular cavity actually provides 3D confinement of the light: the ring‐like cross section is a whispering‐gallery type cavity while the propagation of light along the axis direction produces axial mode, like the case in Fabry–Perot cavity .…”

Section: Nanomembrane Origamimentioning

confidence: 99%

“…The quality‐factor of the microtube is determined to be more than one thousand and the enhancement in the photoluminescence compared with flat nanomembrane was attributed to the light‐trapping effect in the tubular geometry . Detailed characterization demonstrated that the wavelength and the polarization of optical resonance were significantly influenced by the geometrical features of rolled‐up nanomembrane . The coupling effect between the resonance in the cavity and a nearby object or surface plasmon from nanostructures made from noble metal has recently attracted increasing interest, and the stack of nanomembranes during rolling process may be further used to architect 3D metamaterials .…”

Section: Nanomembrane Origamimentioning

confidence: 99%

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Huang

Mei

2018

Small

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Nanoscience and nanotechnology offer great opportunities and challenges in both fundamental research and practical applications, which require precise control of building blocks with micro/nanoscale resolution in both individual and mass-production ways. The recent and intensive nanotechnology development gives birth to a new focus on nanomembrane materials, which are defined as structures with thickness limited to about one to several hundred nanometers and with much larger (typically at least two orders of magnitude larger, or even macroscopic scale) lateral dimensions. Nanomembranes can be readily processed in an accurate manner and integrated into functional devices and systems. In this Review, a nanotechnology perspective of nanomembranes is provided, with examples of science and applications in semiconductor, metal, insulator, polymer, and composite materials. Assisted assembly of nanomembranes leads to wrinkled/buckled geometries for flexible electronics and stacked structures for applications in photonics and thermoelectrics. Inspired by kirigami/origami, self-assembled 3D structures are constructed via strain engineering. Many advanced materials have begun to be explored in the format of nanomembranes and extend to biomimetic and 2D materials for various applications. Nanomembranes, as a new type of nanomaterials, allow nanotechnology in a controllable and precise way for practical applications and promise great potential for future nanorelated products.

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“…Because of the rolling mechanism of TiO 2 strained bilayers, the broken rotational symmetry between the inner and outer edges of the SRM introduces an asymmetric parameter (γ) [as presented in Fig. 4(a)] that affects the resonant wavelengths, which resulted from the light confinement in the axial direction and cross-section plane [17][18][19] . Figure 4(b) shows the resonant wavelengths of the designed SRM versus γ for the 65th azimuthal mode and the first radial mode.…”

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confidence: 99%

Vertical integration of self-rolled-up microtube and silicon waveguides: a two-channel optical add–drop multiplexer

Sedaghat

Zarifkar

2017

Chin. Opt. Lett.

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A novel design of a two-channel optical add-drop multiplexer based on a self-rolled-up microtube (SRM) is presented. This design consists of an SRM that has a parabolic lobe-like pattern along the tube's axial direction, as well as straight silicon waveguides and a 180°waveguide bend. The vertical configuration of the SRM and waveguides is analyzed by the coupled mode theory for achieving the optimum gap. In the critical coupling regime, when the device serves as an optical demultiplexer, the minimum insertion loss is 1.94 dB, and the maximum channel crosstalk is −6.036 dB. Also, as an optical multiplexer, the maximum crosstalk becomes −11.9 dB.

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Semi-analytical calculation of resonant modes in axially asymmetric microtube resonators

Cited by 7 publications

References 24 publications

Nanomembrane-assembled nanophotonics and optoelectronics: from materials to applications

Nanomembrane-assembled nanophotonics and optoelectronics: from materials to applications

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Vertical integration of self-rolled-up microtube and silicon waveguides: a two-channel optical add–drop multiplexer

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