• Publications
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Analysis of guided resonances in photonic crystal slabs
We present a three-dimensional analysis of guided resonances in photonic crystal slab structures that leads to a new understanding of the complex spectral properties of such systems. Specifically, weExpand
  • 998
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Temporal coupled-mode theory for the Fano resonance in optical resonators.
We present a theory of the Fano resonance for optical resonators, based on a temporal coupled-mode formalism. This theory is applicable to the general scheme of a single optical resonance coupledExpand
  • 781
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Guided modes in photonic crystal slabs
We analyze the properties of two-dimensionally periodic dielectric structures that have a band gap for propagation in a plane and that use index guiding to confine light in the third dimension. SuchExpand
  • 990
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Coupling of modes analysis of resonant channel add-drop filters
The operation principle of resonant channel add-drop filters based on degenerate symmetric and antisymmetric standing-wave modes has been described elsewhere using group theoretical arguments. InExpand
  • 560
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Passive radiative cooling below ambient air temperature under direct sunlight
Cooling is a significant end-use of energy globally and a major driver of peak electricity demand. Air conditioning, for example, accounts for nearly fifteen per cent of the primary energy used byExpand
  • 746
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Photonic crystals: putting a new twist on light
Photonic crystals are materials patterned with a periodicity in dielectric constant, which can create a range of 'forbidden' frequencies called a photonic bandgap. Photons with energies lying in theExpand
  • 2,420
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Optical absorption enhancement in amorphous silicon nanowire and nanocone arrays.
Hydrogenated amorphous Si (a-Si:H) is an important solar cell material. Here we demonstrate the fabrication of a-Si:H nanowires (NWs) and nanocones (NCs), using an easily scalable and IC-compatibleExpand
  • 1,094
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S4 : A free electromagnetic solver for layered periodic structures
TLDR
Abstract We describe S 4 , a free implementation of the Fourier modal method (FMM), which has also been commonly referred to as rigorous coupled wave analysis (RCWA), for simulating electromagnetic propagation through 3D structures with 2D periodicity. Expand
  • 394
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Complete optical isolation created by indirect interband photonic transitions
  • Z. Yu, S. Fan
  • Materials Science, Engineering
  • OPTO
  • 12 February 2009
Achieving on-chip optical signal isolation is a fundamental difficulty in integrated photonics [1]. The need to overcome this difficulty, moreover, is becoming increasingly urgent, especially withExpand
  • 407
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Coherent photon transport from spontaneous emission in one-dimensional waveguides.
A two-level system coupled to a one-dimensional continuum is investigated. By using a real-space model Hamiltonian, we show that spontaneous emission can coherently interfere with the continuum modesExpand
  • 328
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