Antenna-coupled infrared detectors for imaging applications

González, Francisco; Ilic, B.; Alda, Javier; Boreman, Glenn D.

doi:10.1109/jstqe.2004.841474

Cited by 85 publications

(41 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous research has shown that dipole-coupled antennas can be fabricated and are sensitive to 10.6 μm infrared radiation [8,9]. Building from this research, antenna arrays for the infrared are currently being developed and investigated.…”

Section: Introductionmentioning

confidence: 97%

Measurement of the Mutual Coherence Function of an Incoherent Infrared Field with a Gold Nano-wire Dipole Antenna Array

Middlebrook

Roggemann

Boreman

et al. 2007

Int J Infrared Milli Waves

View full text Add to dashboard Cite

The first direct measurement of the mutual coherence function of a spatially incoherent infrared beam was performed at 10.6 μm using a pair of infrared dipole nanowire antennas that were connected to a common bolometer in the center of the pair by short lengths of coplanar strip transmission line. A spatially incoherent source was constructed by Int J Infrared Milli Waves (dithering a BaF2 diffuser near the focus of a CO2 laser beam. The distance from the diffuser to the nano-wire antenna pair was held constant while the distance from the focus of the laser beam to the diffuser was varied to control the effective diameter of the source. The measured bolometer signal was proportional to the magnitude of the mutual coherence function at the plane of the antennas. The experimental results were found to match the predicted performance closely. If this technology can be extended to large arrays, a form of synthetic aperture optical imaging based on the Van Cittert-Zernike theorem is possible, similar to that performed at microwave frequencies now by astronomers. This has the potential to greatly increase the angular resolution attainable with optical instruments.

show abstract

Section: Introductionmentioning

confidence: 97%

Measurement of the Mutual Coherence Function of an Incoherent Infrared Field with a Gold Nano-wire Dipole Antenna Array

Middlebrook

Roggemann

Boreman

et al. 2007

Int J Infrared Milli Waves

View full text Add to dashboard Cite

show abstract

“…4,5 This resonant current is subsequently exploited either to sense or recover the electromagnetic energy. 6,7 Different harvesting mechanisms such as the use of fast rectifying diodes coupled to the antennas have been extensively investigated in order to recover this confined energy in an efficient way, [8][9][10][11] thereby opening, a new route for the advanced design of harvesting devices.…”

Section: Introductionmentioning

confidence: 99%

Numerical conversion efficiency of thermally isolated Seebeck nanoantennas

et al. 2016

View full text Add to dashboard Cite

In this letter, we evaluate the conversion efficiency of thermally isolated Seebeck nanoantennas by numerical simulations and discuss their uses and scope for energy harvesting applications. This analysis includes the simple case of titanium-nickel dipoles suspended in air above the substrate by a 200 nm silicon dioxide membrane to isolate the heat dissipation. Results show that substantially thermal gradients are induced along the devices leading to a harvesting efficiency around 10-4 %, 400 % higher than the previously reported Seebeck nanoantennas. In the light of these results, different optimizing strategies should be considered in order to make the Seebeck nanoantennas useful for harvesting applications.

show abstract

“…In this case a bias voltage is necessary for operation. Micro-antenna coupled IR detectors arranged in large arrays have been demonstrated for imaging applications and laser characterization [5,6]. They have been also proposed for solar energy harvesting [7].…”

Section: Introductionmentioning

confidence: 99%

Antenna array connections for efficient performance of distributed microbolometers in the IR

Silva-López¹,

Cuadrado²,

Llombart³

et al. 2013

Opt. Express

View full text Add to dashboard Cite

Optical antennas and resonant structures have been extensively investigated due to its potential for electromagnetic detection and energy harvesting applications. However their integration into large arrays and the role of connection lines between individual antennas has drawn little attention. This is necessary if we want to exploit its potential constructively and to enable economical large-scale fabrication. In this contribution we point out some features that an efficient antenna array should address. Experimental measurements on aluminum microbolometers are compared to electromagnetic simulations, it is shown that the finite size of a real array and the interconnection lines interact and affect the global performance.

show abstract

Antenna-coupled infrared detectors for imaging applications

Cited by 85 publications

References 8 publications

Measurement of the Mutual Coherence Function of an Incoherent Infrared Field with a Gold Nano-wire Dipole Antenna Array

Measurement of the Mutual Coherence Function of an Incoherent Infrared Field with a Gold Nano-wire Dipole Antenna Array

Numerical conversion efficiency of thermally isolated Seebeck nanoantennas

Antenna array connections for efficient performance of distributed microbolometers in the IR

Contact Info

Product

Resources

About