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Doyle, Natalie J.

doi:10.1177/0725513697049000009

Cited by 5 publications

(10 citation statements)

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“…Several peaks, termed E3/E4, Z0 and Z1/Z2 have been reported to appear in electron irradiated 6H-SiC in the temperature range where the broad Z peak is observed. [2][3][4][5]11 In the second measurement ͓Fig. 1͑b͔͒, the broad peak at high temperature in Fig.…”

Section: Resultsmentioning

confidence: 99%

Capture cross sections of electron irradiation induced defects in 6H–SiC

Hemmingsson

Son

Kordina

et al. 1998

Journal of Applied Physics

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Electrically active defects in irradiated 4H-SiC J. Appl. Phys. 95, 4728 (2004); 10.1063/1.1689731Electron-irradiation-induced deep levels in n-type 6H-SiC A deep level transient spectroscopy study of electron irradiation induced deep levels in p-type 6H-SiCAn investigation of electron irradiation induced deep levels in 6H-SiC p ϩ n diodes grown by chemical vapor deposition has been performed. Deep level transient spectroscopy ͑DLTS͒ reveals several overlapping peaks in the temperature range 140-650 K. The electron capture cross sections have been measured by directly observing the variation of the DLTS peak height with the duration of the filling pulse and fitting the capacitance transient using multiple linear regression. Temperature dependence studies of the electron capture cross section were performed on three of the observed levels.

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Section: Resultsmentioning

confidence: 99%

Capture cross sections of electron irradiation induced defects in 6H–SiC

Hemmingsson

Son

Kordina

et al. 1998

Journal of Applied Physics

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“…The literature contains various treatments that describe systems of evaporating atoms in the presence of additional loss mechanisms [8][9][10]. In general, the dynamics of these systems is quite difficult to model analytically.…”

Section: Introductionmentioning

confidence: 99%

“…The most common of these is the "large-" approximation. The large-model is discussed at length in the treatments by Doyle [9] and Ketterle [10] and is implicit in the treatment by Luiten [8]. However, since this model is not valid at low , it is incapable of describing the above mentioned experimental observations.…”

Section: Introductionmentioning

confidence: 99%

Evaporative cooling at low trap depth

deCarvalho

Doyle

2004

Phys. Rev. A

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A quantitative, analytic model of evaporative cooling covering both the small-͑Ͻ4͒ and large-͑Ͼ4͒ regimes is presented. is the dimensionless parameter defined as the trap depth divided by the temperature of the trapped sample. Although some of the same general properties present at large are also present at small , there are significant quantitative differences. These differences must be taken into account in order to accurately extract from the trapping data quantitative measurements of, for example, collisional atomic cross sections.

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“…The general KID theory was first established by Day et al (2003). For a complete review, we refer to Zmuidzinas (2012) and Doyle (2008). LEKID is a resonator that is fabricated from superconducting elements in which absorbed photons can change the Cooper-pair density, producing a change in both resonant frequency and the quality factor of the resonator.…”

Section: Lekid Detectorsmentioning

confidence: 99%

Bi-layer kinetic inductance detectors for space observations between 80–120 GHz

Catalano

Goupy

Sueur

et al. 2015

A&A

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We have developed lumped element kinetic inductance detectors (LEKIDs) that are sensitive in the frequency band from 80 to 120 GHz. In this work, we take advantage of the so-called proximity effect to reduce the superconducting gap of aluminium (Al), otherwise strongly suppressing the LEKID response for frequencies smaller than 100 GHz. We designed, produced, and optically tested various fully multiplexed arrays based on multi-layer combinations of Al and titanium (Ti). Their sensitivities were measured using a dedicated closed-circle 100 mK dilution cryostat and a sky simulator, which allowed us to reproduce realistic observation conditions. The spectral response was characterised with a Martin-Puplett interferometer up to THz frequencies and had a resolution of 3 GHz. We demonstrate that Ti-Al LEKID can reach an optical sensitivity of about 1.4 × 10 −17 W/Hz 0.5 (best pixel), or 2.2 × 10 −17 W/Hz 0.5 when averaged over the whole array. The optical background was set to roughly 0.4 pW per pixel, which is typical for future space observatories in this particular band. The performance is close to a sensitivity of twice the CMB photon noise limit at 100 GHz, which drove the design of the Planck HFI instrument. This figure remains the baseline for the next generation of millimetre-wave space satellites.

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Reviews

Cited by 5 publications

References 0 publications

Capture cross sections of electron irradiation induced defects in 6H–SiC

Capture cross sections of electron irradiation induced defects in 6H–SiC

Evaporative cooling at low trap depth

Bi-layer kinetic inductance detectors for space observations between 80–120 GHz

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