The device USES mirrors to bounce the laser's light back and forth until it has touched every molecule a patient exhales in a single breath, the team reported in the journal Optics Express.

该团队在Optics Express杂志中报道，这种仪器利用镜片使激光来回反射，直到将病人一次呼出的气体中的所有分子全部测到。

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Locatelli et al., Optics Express, Vol. 21, Issue 5, pp. 5379-5390 (2013).

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The team describes its breakthrough results and their applications in a paper published today in the Optical Society's (OSA) open-access journal Optics Express.

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Solenoid beams have already proven their "tractor beam" abilities in laboratory tests published in the journal Optics Express, but the pulling power of Bessel beams, presented on the preprint server Arxiv in February, remains to be proved experimentally.

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