R. Lee

California Institute of Technology

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Oskar Painter

California Institute of Technology

John O’Brien

Trinity College Dublin

Brian D’Urso

Montana State University

Axel Scherer

California Institute of Technology

A. Yariv

California Institute of Technology

Chuan Cheng

Stony Brook University

Chih-Yi Cheng

National Taiwan University

Eli Yablonovitch

University of California, Berkeley

A. Yariv

California Institute of Technology

A. Scherer

California Institute of Technology

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California Institute of Technology

Kavli Energy NanoScience Institute

Harvard University Press

University of California, Berkeley

Stony Brook University

Jiujiang First People's Hospital

Linkou Chang Gung Memorial Hospital

Chang Gung University

SLAC National Accelerator Laboratory

Union Hospital

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Lasers incorporating two-dimensional photonic crystal mirrors

Oskar Painter John O’Brien R. Lee Chih-Yi Cheng Brian D’Urso

Wavelength (nm)CFQl Fig. 3 Transmission spectra along several propagation directions, 0, defined in Fig. lb, for a = 0.28 km.The solid (dotted) curves are as in Fig. 2. that a polar plot of the attenuation positions seen in Fig. 3 reproduces the geometry of the Brillouin zones (depicted in Fig. 1).This has been confirmed experimentally, both in the near-infrared' and in the visible!Our low-index-contrast nanochannelglass-based photonic crystals can allow the fabrication of devices, such as filters, tunable by adjusting the propagation direction and polarization.Unlike materials used in previous work, the present photonic crystals are easily scaled to very large physical dimensions, exceeding 2 inches on a side.1.

Facet (psychology)

Yablonovite

Lattice (music)

10.1109/cleo.1997.603545

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Microfabrication Of Photonic Crystal Mirrors For Optoelectronic Devices.

A. Scherer John O’Brien Chuan Cheng Oskar Painter R. Lee

Photonic bandgap crystals are expected to be useful in defining microcavities for modifying spontaneous emission and as high reflectivity mirrors. Here, we use these photonic crystals as end-mirrors of edge-emitting GRINSCH lasers. These single quantum well lasers were grown by molecular beam epitaxy (MBE) and consist of waveguide structures which are in excess of 1.5 micrometers in thickness. To define a high-reflectivity photonic crystal mirror on the edge of these laser stripes, we use a surface mask of PMMA on top of an epitaxially deposited AIAs masking layer. After electron beam exposure of the resist and definition of the 100nm diameter holes through the GaAs cap layer and the 200 nm thick AIAs mask layer, high temperature field oxidation of the AIAs is performed at 340°C for 1.5 hours. This oxidizes the AIAs and forms a very robust etch mask. The hexagonal arrays of 100nm holes are then transferred to a depth of 2 microns through the laser waveguide structure so as to overlap with the optical field in the laser (Figure 1). The output mirror for the laser stripe consists of a standard cleaved facet.

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Waveguide

10.1364/qo.1997.qtha.5

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Photonic bandgap crystal InGaAsP membrane microresonators

Axel Scherer Brian D’Urso Oskar Painter R. Lee A. Yariv

We have microfabricated 2-D photonic bandgap structures in a thin slab of dielectric material to define reflectors and high-Q microresonators. By selectively omitting holes from the two-dimensional photonic crystal, laser cavities and optical resonator switches can be defined. We have designed this structure with a finite difference time domain (FDTD) approach, and demonstrate some promising designs in InGaAs/InGaAsP multiple quantum well material with emission wavelength of 1.55 microns.

10.1109/iciprm.1998.712789

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