Lithographic spiral antennas at short wavelengths

Grossman, Erich N.; Sauvageau, J. E.; McDonald, Donald G.

doi:10.1063/1.105739

Cited by 66 publications

(26 citation statements)

References 9 publications

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“…Early attempts in developing integrated optical antennas can be traced back to the 1990's with experimental demonstrations of micrometer-scale infrared [1][2][3] and visible light [4] antennas. Since then, interest in this emerging research field has grown rapidly, with increasing sophistication of designs enabled by advancements in the nanofabrication technology.…”

Section: Introductionmentioning

confidence: 99%

Dielectric resonator nanoantennas at visible frequencies

Zou¹,

Withayachumnankul²,

Shah³

et al. 2013

Opt. Express

195

131

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Section: Introductionmentioning

confidence: 99%

Dielectric resonator nanoantennas at visible frequencies

Zou¹,

Withayachumnankul²,

Shah³

et al. 2013

Opt. Express

195

131

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“…Much larger field localizations are obtained using two identical nanospheres (known as dimer) or in an array (nanoparticle chain) [209]. Many other shapes can be used as nanoantennas such as nanorods, two-wire [210] bowtie [211] diablo-type nanoantenna [212], the YagiUda, group of director nanorods [213], spiral nanoantennas [214], and those with fractal geometries [215]. Many other shapes can be used.…”

Section: Optical Antennamentioning

confidence: 99%

Emerging technologies for high performance infrared detectors

2017

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Infrared photodetectors (IRPDs) have become important devices in various applications such as night vision, military missile tracking, medical imaging, industry defect imaging, environmental sensing, and exoplanet exploration. Mature semiconductor technologies such as mercury cadmium telluride and III-V material-based photodetectors have been dominating the industry. However, in the last few decades, significant funding and research has been focused to improve the performance of IRPDs such as lowering the fabrication cost, simplifying the fabrication processes, increasing the production yield, and increasing the operating temperature by making use of advances in nanofabrication and nanotechnology. We will first review the nanomaterial with suitable electronic and mechanical properties, such as two-dimensional material, graphene, transition metal dichalcogenides, and metal oxides. We compare these with more traditional lowdimensional material such as quantum well, quantum dot, quantum dot in well, semiconductor superlattice, nanowires, nanotube, and colloid quantum dot. We will also review the nanostructures used for enhanced lightmatter interaction to boost the IRPD sensitivity. These include nanostructured antireflection coatings, optical antennas, plasmonic, and metamaterials.

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“…Specific types of microantennas that have been described include the planar lithographed bow-tie (37), the logperiodic (38), the log-spiral (39,40), and the micromachined horn (6). These types of microantennas have the characteristics needed for the application, namely the potential for high transmission efficiency, ρ a , and a very wide bandwidth.…”

Section: Netd Of a Mmw Radiometer With An Htsc Microbolometer Detectormentioning

confidence: 99%

“…In general, they have exhibited good performance. For example, the transmission efficiency has been reported to be 0.50 and higher for the log-periodic and log-spiral microantennas (39,40,41) and 0.90 for a micromachined horn (42). For the purposes of the NETD calculations to follow, the assumption is made that a MMW planar lithographed or horn microantenna with ρ a = 0.80 is achievable.…”

Section: Netd Of a Mmw Radiometer With An Htsc Microbolometer Detectormentioning

confidence: 99%

Microbolometer Detectors for Passive Millimeter-Wave Imaging

Nemarich¹

2005

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Sensors and Electron Devices Directorate, ARLApproved for public release; distribution unlimited. ii REPORT DOCUMENTATION PAGEForm Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY) March 20052. REPORT TYPE ARL-TR-3460 SPONSOR/MONITOR'S ACRONYM(S) 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)U.S. Army Research Laboratory 2800 Powder Mill Road Adelphi, MD 20783-1197 SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution unlimited. SUPPLEMENTARY NOTES ABSTRACTReports on far-infrared and infrared microbolometer detectors developed with cooled high temperature superconductor (HTSC) materials were reviewed to determine whether it would be feasible to use this type of detector in a passive millimeter wave camera (PMC). A base-line set of achievable HTSC microbolometer parameter values were identified and used to calculate the noise equivalent temperature difference (NETD) of a cooled MMW radiometer with this type of detector. The report includes results showing that the calculated NETD of such a radiometer operating at a 30-Hz modulation frequency would be between 3 and 6 K for an RF bandwidth between 70 and 40 GHz. A PMC with this NETD would be competitive with that of previously developed systems, be much less costly, and be suitable for a number of applications. The results of further calculations made to determine the HTSC microbolometer parameter values needed to obtain an improved MMW detector are included in the report. SUBJECT TERMS

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Lithographic spiral antennas at short wavelengths

Cited by 66 publications

References 9 publications

Dielectric resonator nanoantennas at visible frequencies

Dielectric resonator nanoantennas at visible frequencies

Emerging technologies for high performance infrared detectors

Microbolometer Detectors for Passive Millimeter-Wave Imaging

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