Optics Express (OPT EXPRESS)

Publisher: Optical Society of America, Optical Society of America

Journal description

Optics Express is the world's first international all-electronic journal of optics. Published bi-weekly, Optics Express offers OSA quality, rapid publication of original, peer-reviewed articles in all fields of optical science and technology. Color graphics and audio or video features are included at no extra cost to the authors. This journal is freely and widely available to readers via the Internet.

Current impact factor: 3.53

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 3.525
2012 Impact Factor 3.546
2011 Impact Factor 3.587
2010 Impact Factor 3.749
2009 Impact Factor 3.278
2008 Impact Factor 3.88
2007 Impact Factor 3.709
2006 Impact Factor 4.009
2005 Impact Factor 3.764
2004 Impact Factor 3.797
2003 Impact Factor 3.219
2002 Impact Factor 2.331
2001 Impact Factor 2.027
2000 Impact Factor 1.811

Impact factor over time

Impact factor
Year

Additional details

5-year impact 3.58
Cited half-life 3.80
Immediacy index 0.80
Eigenfactor 0.25
Article influence 1.13
Website Optics Express website
Other titles Optics express
ISSN 1094-4087
OCLC 37160672
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Optical Society of America

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • On author's personal website, institutional website or e-print servers, including in arXiv
    • Non-Commercial
    • Publisher copyright and source must be acknowledged with set statement (see policy)
    • Set statement to accompany deposit (see policy)
    • NIH authors only may deposit in PubMed Central
    • Authors may comply with government funding agency requirements, after 12 months embargo
    • Must link to publisher version
    • Closed access institutional repository deposit is also allowed
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The spatial depolarization of light emitted by heterogeneous bulks is predicted with exact electromagnetic theories. The sample microstructure and geometry is connected with partial polarization.
    Optics Express 04/2015; Vol.23(Iss. 7):pp. 8246–8260. DOI:10.1364/OE.23.008246
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    ABSTRACT: The hybrid white light-emitting didoes (LED) with polyfluoren (PFO) polymer and quantum dot (QD) was investigated using dispensing method at the different correlated color temperature (CCT) for cool and warm color temperature. This result indicates that the hybrid white LED device has the higher luminous efficiency than the convention one, which could be attributed to the increased utilization rate of the UV light. Furthermore, the CIE 1931 coordinate of high quality white hybrid LED with different CCT range from 3000K to 9000K is demonstrated. Consequently, the angular-dependent CCT and the thermal issue of the hybrid white LED device were also analyzed in this study.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.00A204
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    ABSTRACT: We theoretically introduced a design paradigm and tool by extending the circuit functionalities from radio frequency to near infrared domain, and a broad band-stop filter, is successfully demonstrated by cascading triple layers of nano-square arrays. The feasibility is confirmed by its consistency with the rigorous FDTD calculation. Moreover, such a third-order Butterworth filter is not only insensitive to the incident angle and but also to input light’s polarization. The new paradigm forms a theoretical foundation for designing optical devices and also enriches the classic circuit operations at the optical frequency region.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008290
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    ABSTRACT: Signals measured with Chirped Laser Dispersion Spectroscopy (CLaDS) setup implemented with an intensity modulator are analyzed. We investigate the signal amplitude dependence on the modulator bias voltage and the signal generator output power. Potential strategies for signal retrieval are discussed. We demonstrate that choosing a bias voltage, an RF generator output power and a demodulation frequency is critical for CLaDS and strongly affects its performance.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008227
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    ABSTRACT: The present work theoretically analyzes the performance of the near-field thermophotovoltaic (TPV) energy conversion device for low temperature applications (Tsource ∼ 500 K). In the proposed TPV system, doped Si is employed as the source because its optical property can be readily tuned by changing the doping concentration, and InSb is selected as a TPV cell because of its low bandgap energy (0.17 eV). In order to enhance the near-field thermal radiation between the source and the TPV cell, monolayer of graphene is coated on the cell side so that surface plasmon can play a critical role in heat transfer. It is found that monolayer of graphene can significantly enhance the power throughput by 30 times and the conversion efficiency by 6.1 times compared to the case without graphene layer. The resulting maximum conversion efficiency is 19.4% at 10-nm vacuum gap width.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.00A240
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    ABSTRACT: We dope Gd3+ ions into Ce: YAG ceramics to induce red-shift in the photoluminescence, of which the degree is proportional to the Gd3+ doping concentration. This kind of ceramic, when collaborating with InGaN blue chips, proves to be a promising fluorescent material of white light-emitting diodes, for not only its high in-line transmittance and decent quantum yield, but also the improvement in color rendering ability brought by the red-shift, which enhances the ratio of red portion in spectra. We demonstrate that 10% is the optimized value of Gd3+ doping concentration, as it provides the maximum color rendering index of ~78 with luminous efficiency as high as 128 lm/W.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.00A292
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    ABSTRACT: This study presents an analysis of the cyclic nonlinearity in the homodyne interferometer starting from the interference principle. We present the design for an enhanced homodyne interferometer without DC offset, for which the nonlinearity model will not be influenced by the intensity of the measurement beam. Our experimental results show that the enhanced interferometer can suppress the nonlinearity to less than 0.5 nm with a system calibration involving gain adjustment and phase-correction methods.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008399
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    ABSTRACT: We demonstrate flexible CdTe/CdS thin-film solar cells in a superstrate configuration with a cell conversion efficiency as high as 10.9%. We deposit a CdS window layer and a CdTe absorber layer on a flexible glass substrate using the chemical bath deposition method and close-spaced sublimation method, respectively. The thin and flexible glass substrates were able to tolerate a high growth temperature and post-growth processes. We repeatedly apply a strain of 0.15% to the fabricated CdTe/CdS solar cells, and this was shown to have a negligible effect on their performances. Our proposed thin films-on-compliant substrate structure, which was prepared by replacing a rigid glass with a bendable one, demonstrated flexible CdTe/CdS p-n junction thin-film solar cells without compromising the cell performance.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.00A316
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    ABSTRACT: Discrete multi-tone (DMT) modulation is an attractive modulation format for short-reach applications to achieve the best use of available channel bandwidth and signal noise ratio (SNR). In order to realize polarization-multiplexed DMT modulation with direct detection, we derive an analytical transmission model for dual polarizations with intensity modulation and direct diction (IM-DD) in this paper. Based on the model, we propose a novel polarization-interleave-multiplexed DMT modulation with direct diction (PIM-DMT-DD) transmission system, where the polarization de-multiplexing can be achieved by using a simple multiple-input-multiple-output (MIMO) equalizer and the transmission performance is optimized over two distinct received polarization states to eliminate the singularity issue of MIMO demultiplexing algorithms. The feasibility and effectiveness of the proposed PIM-DMT-DD system are investigated via theoretical analyses and simulation studies.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008409
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    ABSTRACT: We demonstrate a diamond Raman laser intracavity-pumped by a red semiconductor disk laser (~675 nm) for laser emission at around 740 nm. Output power up to 82 mW of the Stokes-shifted field was achieved, limited by the available pump power, with an output coupling of 1.5%. We also report wavelength tuning of the diamond Raman laser over 736 - 750 nm.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008454
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    ABSTRACT: Averaging and shifting the refractive index profiles of quasiperiodic structure reveals the formation of several localized modes in the reflectivity spectrum and were used to generate different spectral barcodes. By associating the depth and wavelength of the observed resonant modes to the thickness and position of blackbars, respectively, the possibility to generate multiple codes has been shown. An experimental verification was carried out with multilayered dielectric porous silicon structures with reflectivity spectra revealing unique photonic fingerprints.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008272
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    ABSTRACT: A particular photonic crystal fiber (PCF) designed with all circle air holes is proposed. Its characteristics are studied by full-vector finite element method (FEM) with anisotropic perfectly matched layer (PML). The simulation results indicated that the proposed PCF can realize high birefringence (up to 10−2), high nonlinearity (50W−1·km−1 and 68W−1·km−1 in X and Y polarizations respectively) and low confinement loss (less than 10−3dB/km at 1.55um wavelength).
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008329
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    ABSTRACT: A p-i-n structure with near-UV(n-UV) emitting InGaN/GaN multiple quantum well(MQW) structure stacked on a green unipolar InGaN/GaN MQW was epitaxially grown at the same sapphire substrate. Photon recycling green light-emitting diodes(LEDs) with vertical-conduction feature on silicon substrates were then fabricated by wafer bonding and laser lift-off techniques. The green InGaN/GaN QWs were pumped with n-UV light to reemit low-energy photons when the LEDs were electrically driven with a forward current. Efficiency droop is potentially insignificant compared with the direct green LEDs due to the increase of effective volume of active layer in the optically pumped green LEDs, i.e., light emitting no longer limited in the QWs nearest to the p-type region to cause severe Auger recombination and carrier overflow losses.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.00A371
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    ABSTRACT: In this paper we theoretically investigate the feasibility of creating a dual-mode plasmonic nanorod antenna. The proposed design methodology relies on adapting to optical wavelengths the principles of operation of trapped dipole antennas, which have been widely used in the low MHz frequency range. This type of antenna typically employs parallel LC circuits, also referred to as “traps”, which are connected along the two arms of the dipole. By judiciously choosing the resonant frequency of these traps, as well as their position along the arms of the dipole, it is feasible to excite the λ/2 resonance of both the original dipole as well as the shorter section defined by the length of wire between the two traps. This effectively enables the dipole antenna to have a dual-mode of operation. Our analysis reveals that the implementation of this concept at the nanoscale requires that two cylindrical pockets (i.e. loading volumes) be introduced along the length of the nanoantenna, inside which plasmonic core-shell particles are embedded. By properly selecting the geometry and constitution of the core-shell particle as well as the constitution of the host material of the two loading volumes and their position along the nanorod, the equivalent effect of a resonant parallel LC circuit can be realized. This effectively enables a dual-mode operation of the nanorod antenna. The proposed methodology introduces a compact approach for the realization of dual-mode optical sensors while at the same time it clearly illustrates the inherent tuning capabilities that core-shell particles can offer in a practical framework.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008298
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    ABSTRACT: We demonstrate high performance 2150 nm InAs/InGaAs/InP quantum well (QW) lasers grown by metalorganic vapor phase epitaxy. The laser structure consists of two InAs/InGaAs QWs, with a 30 μm-wide ridge waveguide and two cleaved cavity facets. The continuous wave operation at room temperature (RT) is achieved, with an output power of larger than 160 mW per facet and with a low threshold current density of 90.4 A/cm2 per QW derived for the infinite cavity length. Under pulse injection mode, the maximal peak power per facet is as high as 1.35 W. By varying the cavity length, the lasing wavelength can be tuned in a range from 2142 nm to 2154 nm. Moreover, the highest operating temperature reaches up to 100 °C, and characteristic temperatures are 50 K (T0) and 132 K (T1) in the temperature range of 20-70 °C, respectively.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.008383
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    ABSTRACT: To obtain realistic results in lighting simulation software, realistic models of light sources are needed. A near-field model of a light source is accurate, and can be obtained by a near-field goniophotometer. This type of goniophotometer is conventionally equipped with a V(λ)-filter. However, the advent of new light sources with spatial- or angular color variations necessitates the inclusion of spectral information about the source. We demonstrate a method to include spectral information of a light source in ray tracing. We measured the relative angular variation of the spectrum of an OLED using a spectroradiometer mounted on a near-field goniophotometer. Principal component analysis (PCA) is exploited to reduce the amount of data that needs to be stored. Also a photometric ray file of the OLED was obtained. To construct a set of monochromatic ray files, the luminous flux in the original ray file is redistributed over a set of wavelengths and stored in separate ray files. The redistribution depends on the angle of emission and the spectral irradiance measured in that direction. These ray files are then inserted in ray tracing software TracePro. Using the OLED as a test source, the absolute spectral irradiance is calculated at an arbitrary position. The result is validated using a spectroradiometer to obtain the absolute spectral irradiance at that particular point. A good agreement between the simulated and measured absolute spectral irradiance is found. Furthermore, a set of tristimulus ray files is constructed and used in ray tracing software to generate a u′v′-color coordinate distribution on a surface. These values are in agreement with the color coordinate distribution found using the spectral ray files. Whenever spectral or color information is desired at a task area, the proposed method allows for a fast and efficient way to improve the accuracy of simulations using ray tracing.
    Optics Express 04/2015; 23(7). DOI:10.1364/OE.23.00A361