# IEEE Journal of Selected Topics in Quantum Electronics

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Displaying Results 1 - 25 of 66
• ### Front Cover

Publication Year: 2015, Article Sequence Number: 0001301
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• ### IEEE Journal of Selected Topics in Quantum Electronics publication information

Publication Year: 2015, Article Sequence Number: 0001401
| PDF (150 KB)

Publication Year: 2015, Article Sequence Number: 0100404
| PDF (229 KB)
• ### Introduction to the Issue on Optical Micro- and Nanosystems

Publication Year: 2015, Article Sequence Number: 0200602
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The 55 papers in this special issue span the topics of optical micro-electro-mechanical systems, (MEMS), nano-electro-mechanical systems (NEMS) and micromirror devices, including tunable and reconfigurable devices; optical guided-wave, plasmonic, and metamaterial-based devices; optical emitters, detectors, and modulators; and biomedical, microfluidic, and optofluidic devices. View full abstract»

• ### Micromachined Vertical Cavity Surface Emitting Lasers—Athermalization, Tuning, and Multiwavelength Integration

Publication Year: 2015, Article Sequence Number: 1700310
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We review the wavelength engineering of micromachined vertical cavity surface emitting lasers (VCSELs), including the wavelength athermalization, wavelength tuning, and multiple wavelength integration. The integration of a thermally actuated cantilever enables us to tailor the temperature dependence of lasing wavelengths. The thermal drift of lasing wavelengths in conventional single-mode semicond... View full abstract»

• ### Quantum-Dot Light-Emitting Diode Featuring Polymeric Metal Oxide Anode Buffer Layer

Publication Year: 2015, Article Sequence Number: 1900206
Cited by:  Papers (1)
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A highly efficient quantum-dot light emitting diode (QLED) featuring polymeric and metal oxide mixture as a hole injection layer is demonstrated. The poly(3,4-ethylenedioxythiophene) polystyrene sulfonate:tungsten oxide (PEDOT:PSS:WOx)-based QLEDs demonstrate significantly higher performance compared to that of the PEDOT:PSS only-based QLEDs. Observations indicate that the mixture of PE... View full abstract»

• ### Wide-Range Correlated Color Temperature Light Generation From Resonant Cavity Hybrid Quantum Dot Light-Emitting Diodes

Publication Year: 2015, Article Sequence Number: 1900407
Cited by:  Papers (1)
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This study presents extremely uniform colloidal quantum dot white light-emitting diodes (QD-WLEDs) that demonstrate a high color rendering index (CRI) and correlated color temperatures (CCTs) ranging from 2500 to 4500 K. Experimental results indicate that the structure of the distributed Bragg reflector (DBR) containing a stopband in the UV region enhances the intensity output of both monochromati... View full abstract»

• ### CMOS-Integrated Si/SiGe Quantum-Well Infrared Microbolometer Focal Plane Arrays Manufactured With Very Large-Scale Heterogeneous 3-D Integration

Publication Year: 2015, Article Sequence Number: 2700111
Cited by:  Papers (7)
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We demonstrate infrared focal plane arrays utilizing monocrystalline silicon/silicon-germanium (Si/SiGe) quantum-well microbolometers that are heterogeneously integrated on top of CMOS-based electronic read-out integrated circuit substrates. The microbolometers are designed to detect light in the long wavelength infrared (LWIR) range from 8 to 14 μm and are arranged in focal plane arrays co... View full abstract»

• ### Advances in Polymer-Based Optical MEMS Fabrication for VCSEL Beam Shaping

Publication Year: 2015, Article Sequence Number: 2700308
Cited by:  Papers (1)
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In this paper, we discuss the design, fabrication, and characterization of electrothermally actuated polymer-based microoptical electromechanical microsystems (MOEMS) for active microoptics in vertical cavity surface emitting laser (VCSEL) devices. We describe in particular the principle of a SU8-based MOEMS designed for single-mode VCSEL beam active focusing. The ultimate objective is the realiza... View full abstract»

• ### Beyond Interferometers Based on Silicon-Air Bragg Reflectors: Toward On-Chip Optical Microinstruments—A Review

Publication Year: 2015, Article Sequence Number: 2700512
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In this paper, we review recent advances in optical microinstruments based on distributed Bragg reflectors (DBR) focusing mainly on two application areas: spectrometry and profilometry. For spectrometry applications, we consider state-of-the-art architectures. Among these are novel architectures of high-Q Fabry-Perot resonators based on cylindrical surfaces. In addition, we consider a microelectro... View full abstract»

• ### Si$_{\bf 3}$N $_{\bf 4}$ Nanobeam Optomechanical Crystals

Publication Year: 2015, Article Sequence Number: 2700611
Cited by:  Papers (6)
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The development of Si3N4 nanobeam optomechanical crystals is reviewed. These structures consist of a 350-nm thick, 700-nm wide doubly-clamped Si3N4 nanobeam that is periodically patterned with an array of air holes to which a defect region is introduced. The periodic patterning simultaneously creates a photonic bandgap for 980 nm band photons and a phono... View full abstract»

• ### Range Extension of a Bimorph Varifocal Micromirror Through Actuation by a Peltier Element

Publication Year: 2015, Article Sequence Number: 2701007
Cited by:  Papers (2)
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A bimorph varifocal micromirror actuated thermoelectrically by a Peltier element is reported. The single-crystal silicon micromirror is 1.2 mm in diameter with a centered 1-mm-diameter gold coating for broadband reflection. The actuation principle is capable of varying the micromirror temperature above and below the ambient temperature, which contributed to a 57% improvement in the addressable cur... View full abstract»

• ### Free-Form Optics Enhanced Confocal Raman Spectroscopy for Optofluidic Lab-on-Chips

Publication Year: 2015, Article Sequence Number: 2701108
Cited by:  Papers (5)
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We present an optofluidic lab-on-chip for confocal Raman spectroscopy, which can be used for the analysis of substances. The device strongly suppresses unwanted background signals because it enables confocal detection of Raman scattering thanks to a free-form reflector embedded in the optofluidic chip. We design the system using non-sequential ray-tracing combined with a mathematical code to simul... View full abstract»

• ### A 35-${\mu} \hbox{m}$ Pitch IR Thermo-Mechanical MEMS Sensor With AC-Coupled Optical Readout

Publication Year: 2015, Article Sequence Number: 2701306
Cited by:  Papers (3)
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A thermo-mechanical MEMS detector with 35-μm pixel pitch is designed, fabricated, and characterized. This fabricated design has one of the smallest pixel sizes among the IR thermo-mechanical MEMS sensors in the literature. The working principle of the MEMS detector is based on the bimaterial effect that creates a deflection when exposed to IR radiation in the 8-12-μm waveband. The na... View full abstract»

• ### Reconfiguration of Resonance Characteristics for Terahertz U-Shape Metamaterial Using MEMS Mechanism

Publication Year: 2015, Article Sequence Number: 2700207
Cited by:  Papers (1)
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We present the design, simulation, fabrication, and characterization of an out-of-plane reconfiguration of terahertz (THz) U-shape metamaterial. The U-shape metamaterial is consisted of bilayer cantilevers with different coefficient of thermal expansion. The electromagnetic tunability of U-shape metamaterial is accomplished by using electrostatic actuation mechanism to provide higher tuning range ... View full abstract»

• ### Development of Miniature Tunable Multi-Element Alvarez Lenses

Publication Year: 2015, Article Sequence Number: 2700408
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The design, fabrication, and characterization of miniature tunable multi-element Alvarez lenses are reported in this paper. Optical design including optimal lens configuration and surface coefficient selection, together with the effects of assembly errors on lens performances, is numerically studied using the ray-tracing method. To demonstrate the working principle, a four-element Alvarez lens is ... View full abstract»

• ### Tunable Optical Filters Based on Silicon Nitride High Contrast Gratings

Publication Year: 2015, Article Sequence Number: 2700706
Cited by:  Papers (3)
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We report the use of a 500-nm-thick silicon nitride membrane as a high-reflectivity mirror in the orange-red spectral range. High contrast gratings based on semiconductors have already been used as high-reflectivity mirrors in the near-IR spectral range, but their use in the visible, which is essential for many types of biosensors, is much less explored. Our membrane is patterned with a high contr... View full abstract»

• ### Tunable Terahertz Filter and Modulator Based on Electrostatic MEMS Reconfigurable SRR Array

Publication Year: 2015, Article Sequence Number: 2700809
Cited by:  Papers (3)
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This paper demonstrates a tunable terahertz (THz) filter and a modulator based on an electrostatic micro electro mechanical systems (MEMS) reconfigurable split ring resonator (SRR) array. The device uses tunable metamaterial concept, in which an RF-MEMS (radio frequency-MEMS) capacitor is embedded in each SRR unit cell to tune the electromagnetic resonant frequency. By utilizing THz time domain sp... View full abstract»

• ### Surface-Micromachined MEMS Tunable Three-Leaf Trefoil-Type Corner Cube Retro-Reflector for Free-Space Optical Applications

Publication Year: 2015, Article Sequence Number: 2700907
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This work has developed a three-leaf trefoil-type corner cube retro-reflector (CCR) fabricated with the MUMPs polysilicon surface micromachining process. Unlike other MEMS CCRs, this CCR's opening faces straight upward as its (1, 1, 1) direction, i.e., the direction along which the retro-reflection efficiency is maximum, is perpendicular to the substrate's surface. Simulation results show that the... View full abstract»

• ### Tunable Micro Cat's Eye Array in an Optical Identification System and Comparison of Different ID Tags

Publication Year: 2015, Article Sequence Number: 2701207
Cited by:  Papers (1)
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An optical identification (ID) system has been built, and dynamic ID tags are compared, which include a home-made tunable cat's eye retroreflector array, a liquid crystal (LC) spatial light modulator (SLM) combined with a retroreflective tape, a LC SLM combined with a plane mirror, and a LC SLM combined with normal white paper. Performance comparisons indicate that the tag implemented with the mic... View full abstract»

• ### MEMS for Plasmon Control of Optical Metamaterials

Publication Year: 2015, Article Sequence Number: 2701410
Cited by:  Papers (3)
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Metamaterials have attracted a great deal of attention as artificial electromagnetic materials having unique optical characteristics, and various innovative optical applications have been expected. Micro electromechanical systems (MEMS)-based reconfigurable metamaterials are candidate technologies for active optical control. In this paper, we focus on MEMS-based reconfigurable metamaterials operat... View full abstract»

• ### Optical Detection of the Electromechanical Response of MEMS Micromirrors Designed for Scanning Picoprojectors

Publication Year: 2015, Article Sequence Number: 2800110
Cited by:  Papers (5)
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Single-axis rotational micromirrors actuated by comb finger structures have been designed in view of their application in reflective scanning picoprojectors for laser beam displacement along two perpendicular directions to obtain a raster scan scheme. A resonant mirror operating at a frequency around 25 kHz, suitable for horizontal scans, as well as a linear mirror, suitable for vertical scan at t... View full abstract»

• ### Wideband Subwavelength Deeply Etched Multilayer Silicon Mirrors for Tunable Optical Filters and SS-OCT Applications

Publication Year: 2015, Article Sequence Number: 2800208
Cited by:  Papers (6)
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In this paper, we report subwavelength deeply etched 1000-nm-thick silicon layers using deep etching on an SOI substrate. The subwavelength silicon layers are used to construct wideband multilayer Bragg mirrors showing more than 220-nm 3-dB bandwidth. The mirror reflectivity and effect of silicon layers etching errors are estimated using optical measurements. The deeply etched mirrors are used to ... View full abstract»

• ### Curved Silicon Micromirror for Linear Displacement-to-Angle Conversion With Uniform Spot Size

Publication Year: 2015, Article Sequence Number: 2800309
Cited by:  Papers (5)
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This paper reports a novel class of deeply etched curved micromirrors enabling linear conversion between the reflection angle of incident light beam and displacement of the beam axis with respect to the curved mirror principal axis. Moreover, the mirror provides phase-transformation of the light beam independent of the inclination angle of the incident light on the mirror surface. The micromirrors... View full abstract»

• ### Characterization of Porous Silicon Fabry–Pérot Optical Sensors for Reflectivity and Transmittivity Measurements

Publication Year: 2015, Article Sequence Number: 2900110
Cited by:  Papers (3)
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We investigate the effect of fabrication parameters (nonequal surface current densities, impurities inside the structure, etc.) and loss factor on reflectivity and transmittivity measurements from porous silicon Fabry-Pérot cavities with finite-size substrate thicknesses. We apply the formalism based on wave cascade matrix method for obtaining dependencies of reflectivity and transmittivit... View full abstract»

## Aims & Scope

Papers published in the IEEE Journal of Selected Topics in Quantum Electronics fall within the broad field of science and technology of quantum electronics of a device, subsystem, or system-oriented nature.

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## Meet Our Editors

Editor-in-Chief
Luke F. Lester
Virginia Polytechnic Institute & State University