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Laser cooling of solids to cryogenic temperatures
Laser radiation has been used to cool matter ranging from dilute gases to micromechanical oscillators. In Doppler cooling of gases, the translational energy of atoms is lowered through interactionExpand
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Optical refrigeration to 119 K, below National Institute of Standards and Technology cryogenic temperature.
We report on bulk optical refrigeration of Yb:YLF crystal to a temperature of ~124 K, starting from the ambient. This is achieved by pumping the E4-E5 Stark multiplet transition at ~1020 nm. A lowerExpand
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Local laser cooling of Yb:YLF to 110 K.
Minimum achievable temperature of ~110 K is measured in a 5% doped Yb:YLF crystal at λ = 1020 nm, corresponding to E4-E5 resonance of Stark manifold. This measurement is in excellent agreement withExpand
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Laser cooling in solids: advances and prospects.
This review discusses the progress and ongoing efforts in optical refrigeration. Optical refrigeration is a process in which phonons are removed from a solid by anti-Stokes fluorescence. The reviewExpand
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Ultrabroadband out-of-loop characterization of the carrier-envelope phase noise of an offset-free Er:fiber frequency comb.
Recent demonstrations of passively phase-locked fiber-based combs motivate broadband characterization of the noise associated with the stabilized carrier-envelope offset frequency. In our study, weExpand
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Broadband field-resolved terahertz detection via laser induced air plasma with controlled optical bias.
We report a robust method of coherent detection of broadband THz pulses using terahertz induced second-harmonic (TISH) generation in a laser induced air plasma together with a controlled secondExpand
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Direct sampling of electric-field vacuum fluctuations
Probing the fluctuating vacuum According to quantum mechanics, a vacuum is not empty space. A consequence of the uncertainly principle is that particles or energy can come into existence for aExpand
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Correlated fluorescence blinking in two-dimensional semiconductor heterostructures
‘Blinking’, or ‘fluorescence intermittency’, refers to a random switching between ‘ON’ (bright) and ‘OFF’ (dark) states of an emitter; it has been studied widely in zero-dimensional quantum dots andExpand
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Cryogenic optical refrigeration
We review the field of laser cooling of solids, focusing our attention on the recent advances in cryogenic cooling of an ytterbium-doped fluoride crystal (Yb3+:YLiF4). Recently, bulk cooling in thisExpand
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Efficient terahertz emission from InAs nanowires
Abstract : We observe intense pulses of far-infrared electromagnetic radiation emitted from arrays of InAs nanowires. The terahertz radiation power efficiency of these structures is 15 times higherExpand
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