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Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on

Date 23-28 Sept. 2012

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  • [Front cover]

    Publication Year: 2012 , Page(s): c1
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  • [Copyright notice]

    Publication Year: 2012 , Page(s): 1
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  • Sponsors

    Publication Year: 2012 , Page(s): 1
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  • Table of contents

    Publication Year: 2012 , Page(s): 1
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  • Welcome to IRMMW-THz 2012

    Publication Year: 2012 , Page(s): 2
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    Welcome to the 37th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2012, which is being held at the University of Wollongong, Australia. View full abstract»

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  • The Kenneth J. Button Prize 2012

    Publication Year: 2012 , Page(s): 3
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    The Kenneth J. Button Prize is awarded annually at the International Conference on Infrared, Millimeter, and Terahertz Waves in recognition of outstanding contributions to the Science of the Electromagnetic Spectrum. The Prize is named after the founder of the Conference Series and is administered by the Institute of Physics in London. It consists of a bronze medal, a certificate and a cash prize of £2000. At each annual meeting of the Conference, the Kenneth J Button Prize Committee will meet to consider the nominations that have been submitted and will elect the recipient of the Medal and Prize for the following year. The presentation will be made at the following annual meeting of the Conference and the recipient will normally be invited to give a plenary lecture at that meeting. View full abstract»

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  • Committees

    Publication Year: 2012 , Page(s): 4 - 7
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  • Information for presenters

    Publication Year: 2012 , Page(s): 8 - 11
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  • History of the Conference

    Publication Year: 2012 , Page(s): 106
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    The International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) is the oldest and largest continuous forum specifically devoted to the field of ultra-high frequency electronics, long-wave electromagnetics and their applications. The first conference in this series was held at the Georgia Institute of Technology in Atlanta in 1974 under the co-sponsorship of the IEEE Society on Microwave Theory and Techniques and the Optical Society of America. The General Chair was James J. Gallagher of the Georgia Institute of Technology and the Program Chair was Kenneth J. Button of the MIT Francis Bitter National Magnet Laboratory. In his Foreword to the Conference Digest, Ken Button predicted that the Conference would “be the first of a long series because the submillimeter wave specialty has become well-defined and moderately well populated.” This prediction was very prescient and the Conference has grown into a respected and self sustaining venue that has now spanned more than three decades, thanks, in large part, to the efforts of Ken Button. The first three meetings (1974, 1976 and 1978) were held bi-annually, but beginning with the 4th meeting in 1979 the conference series was renamed as the International Conference on Infrared and Millimeter Waves (IRMMW) and was held annually. View full abstract»

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  • Past and future conferences [1974-2014]

    Publication Year: 2012 , Page(s): 107
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  • Conference overview

    Publication Year: 2012 , Page(s): 1
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  • Schedule

    Publication Year: 2012 , Page(s): 1 - 33
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  • Author index

    Publication Year: 2012 , Page(s): 81 - 103
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  • Generation of THz radiation: Metallic metamaterial grating versus lamellar grating

    Publication Year: 2012 , Page(s): 1 - 2
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    The Smith-Purcell radiation (SPR) in metallic metamaterial grating is studied theoretically. This metallic metamaterial is a one-dimensional array of slits with sub-wavelength period perforated on a perfect metallic film, which supports discrete guided modes in presence of convective electron bunch near its surface. It is also found that SPR intensity is enhanced when guided modes couple with diffraction mode. The comparison with lamellar grating shows that the metamaterial grating is more effective converter of evanescent field associates with running charge into radiation. This structure would be promising to develop intense narrow-band Smith-Purcell radiation based THz sources. View full abstract»

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  • Development of a multichannel lock-in amplifier for Terahertz time-domain systems

    Publication Year: 2012 , Page(s): 1 - 2
    Cited by:  Papers (1)
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    A multichannel lock-in was developed for the use in a multichannel Terahertz time-domain measurement (TDS) setup. The number of channels can be scaled from 1 channel up to 128 channels regarding the application. View full abstract»

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  • Polymer filters for far-infrared spectroscopy

    Publication Year: 2012 , Page(s): 1 - 2
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    Far-infrared instrumentation is depending on effective filters for wavelength band definition and suppression of unwanted signals. We present an approach to design and manufacture filters both for cryogenic and room temperature applications using a unified technology. View full abstract»

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  • Asymmetric double grating gate detector fabricated on industrial pseudomorphic AlGaAs/InGaAs/AlGaAs heterostructure

    Publication Year: 2012 , Page(s): 1 - 2
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    Rectification at room temperature by asymmetric double-grating-gate GaAs-based field effect transistors has been observed up to 3.89 THz at zero drain bias, and attributed to the peculiar unequal spacing among the two gratings. View full abstract»

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  • A terahertz oscillator based on GaN-HFET with integrated antenna for frequency mixing and rectification

    Publication Year: 2012 , Page(s): 1 - 3
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    We fabricated in-house Field Effect Transistors detectors on GaN-heterostructures where we integrated on-chip broadband antennas for rectification of THz current oscillations in the high mobility two-dimensional electron gas. View full abstract»

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  • The ENEA Compact Advanced THz Source: Upgrade and new imaging capabilities

    Publication Year: 2012 , Page(s): 1 - 3
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    The Compact Advanced Terahertz Source (CATS) developed at ENEA during the past years has now been moved to a new bunker and upgraded for new application capabilities. View full abstract»

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  • DAST/SiO2 multilayer structure for efficient generation of 6 THz quasi-single-cycle pulses via cascaded optical rectification

    Publication Year: 2012 , Page(s): 1 - 3
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    We propose a new technique for efficient generation of 6 THz near-single-cycle transients though optical rectification of 800 nm fs laser pulses in a DAST/SiO2 multilayer structure. The use of such a composite material allows to obtain phase-matching and control cascaded nonlinear processes. View full abstract»

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  • Cross-polarization in quasi-optical receivers: ALMA band 4 and 10

    Publication Year: 2012 , Page(s): 1 - 2
    Cited by:  Papers (1)
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    A careful study about the influence of individual optical components on receiver cross-polarization has been performed. The basic mechanisms of generation of cross-polarization in ellipsoidal mirrors and dielectrics have been reviewed and characterized in terms of higher-order Gaussian beam modes. A simple model considering the phase differences of different Gaussian beam modes is proposed in order to calculate the final system cross-polarization pattern. This model has been successfully used to characterize the total cross-polarization in two cryogenically-cooled receivers for astronomy: ALMA band 4 and band 10. View full abstract»

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  • Cylindrical, periodic-surface-lattice cavity for a MM-wave Cherenkov source

    Publication Year: 2012 , Page(s): 1 - 3
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    Using a cavity based on a periodic-surface-lattice (PSL) the concept of a high-power, 200GHz Cherenkov source is developed. If the PSL satisfies certain defined conditions single mode operation is observed. View full abstract»

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  • Conduction properties in polyaniline-polyethylene composites in the terahertz region

    Publication Year: 2012 , Page(s): 1 - 2
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    The frequency-dependent conductivity of Polyaniline (PAni)-Polyethylene (PE) composites were measured at different mass concentrations using terahertz time-domain spectroscopy. The frequency-dependent behavior followed the Mott-Davis behavior, which showed variations of the fitting parameter S with different mass fractions of PAni. The parameter S revealed a major influence of the insulating part at lower mass fractions of PAni. It was observed that the conductivity increases exponentially with increasing PAni concentration over the THz frequency range studied. View full abstract»

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  • Fast antenna-coupled terahertz detectors based on uncooled thermoelements

    Publication Year: 2012 , Page(s): 1 - 3
    Cited by:  Papers (1)
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    We report on uncooled antenna-coupled thermoelements with a fast response time operating at 0.812 THz. Each sensor pixel consists of 8 thermocouples in series. As thermoelectric structure, a BiSb/Sb freestanding air-bridge is used, fabricated by micromachining. A thermal time constant as low as 22 μs and a NEP of 130 pW/Hz0.5 at 1 kHz modulation frequency is measured in air at room temperature. The integration capability of the thermocouple sensors enables cost-efficient large-scale detector arrays. View full abstract»

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  • Broadband terahertz analysis of energetic materials — Composition and preparation dependencies

    Publication Year: 2012 , Page(s): 1 - 2
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    A detailed broadband analysis of the resonant absorptions of different common explosives in the range from 0.1-6 THz is presented. Dependencies of the resonance features on different sample parameters are evaluated via spectroscopic investigation of transmission and reflection. A significant dependency on the manufacturing process is observed. View full abstract»

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