Mannino G, Spinella C, Ruggeri R, La Magna A, Fisicaro G, Fazio E, et al. Crystallization of implanted amorphous silicon during millisecond annealing by infrared laser irradiation. Appl Phys Lett. 2010;97(2):3.
Abstract: We investigated the homogenous nucleation of crystalline grains in amorphous Si during transient temperature pulse of few milliseconds IR laser irradiation. The crystallized volume fraction is ~80%. Significant crystallization occurs in nonsteady regime because of the rapid temperature variation (106 °C/s). Our model combines the time evolution of the crystal grain population with the consumption of the amorphous volume due to the growth of grains. Thanks to the experimental approach based on a laser source to heat α-Si and the theoretical model we extended the description of the spontaneous crystallization up to 1323 K or 250 K above the temperature investigated by conventional annealing.
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Barends R, Hajenius M, Gao JR, Klapwijk TM. Current-induced vortex unbinding in bolometer mixers. Appl Phys Lett. 2005;87:263506 (1 to 3).
Abstract: We present a description of the current-voltage characteristics of hot electron bolometers in terms of the current-dependent intrinsic resistive transition of NbN films. We find that, by including this current dependence, we can correctly predict the complete current-voltage characteristics, showing excellent agreement with measurements for both low and high bias and for small as well as large devices. It is assumed that the current dependence is due to vortex-antivortex unbinding as described in the Berezinskii–Kosterlitz–Thouless theory. The presented approach will be useful in guiding device optimization for noise and bandwidth.
Keywords: HEB mixer numerical model, HEB model, IV-curves, vortex-antivortex, Berezinskii–Kosterlitz–Thouless theory, diffusion cooling channel, diffusion channel, distributed HEB model, distributed model, self-heating effect, temperature profile
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Terai H, Miki S, Yamashita T, Makise K, Wang Z. Demonstration of single-flux-quantum readout operation for superconducting single-photon detectors. Appl Phys Lett. 2010;97(11):3.
Abstract: A readout circuit using superconducting single-flux-quantum (SFQ) circuits has been developed to realize an independently addressable array of superconducting single-photon detectors (SSPDs). We tested the SFQ readout circuits by connecting with SSPDs. The error rates of readout circuits were below 10–5 for input signal amplitude of greater than 18.2 μA. Detection efficiencies (DEs) for single-photon incidents were measured both with and without the connection of a readout circuit. The observed DEs traced almost the same curves regardless of the connection of the readout circuit, except that the SSPD is likely to latch by connecting the readout circuit.
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Karasik BS, Il'in KS, Pechen EV, Krasnosvobodtsev SI. Diffusion cooling mechanism in a hot-electron NbC microbolometer mixer. Appl Phys Lett. 1996;68(16):2285–7.
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Rodriguez-Morales F, Zannoni R, Nicholson J, Fischetti M, Yngvesson KS, Appenzeller J. Direct and heterodyne detection of microwaves in a metallic single wall carbon nanotube. Appl Phys Lett. 2006;89(8):083502.
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