Publications by authors named "A Laliotis"
We study resonance redistribution mechanisms inside a hot vapor cell. This is achieved by pumping cesium atoms on the 6S→6P resonance and subsequently probing the velocity distribution of the 6P population by a linear absorption experiment on the 6P→16S or 6P→15D transitions at 514 nm and 512 nm, respectively. We demonstrate that despite the existence of thermalization processes, traces of the initial velocity selection, imposed by the pump, survive in hyperfine levels of the intermediate (6P) state.
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- This study assessed frailty in older adults (65+) receiving home care services in Crete, Greece, focusing on psychological, biological, and social factors.
- A total of 730 participants were evaluated, revealing 14.8% as frail, 34.1% as pre-frail, and 51.1% non-frail, with significant connections found between nutritional status and functional independence.
- Conclusions highlighted that good nutritional status, oral health, and functional independence are crucial for reducing frailty among older adults.
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- Nutrition is crucial for elderly health, and this study aims to evaluate nutritional screening among older adults living in the community.
- The study involved 730 participants aged 65 and older in Crete, Greece, assessing nutritional risk through the Mini Nutritional Assessment while considering various health, social, and lifestyle factors.
- Results showed over half were adequately nourished, but 48.1% were either at risk of malnutrition or already malnourished, highlighting the importance of addressing these issues with health authorities and social services.
We report on precision spectroscopy of the 6s^{2} ^{1}S_{0}→6s6p ^{3}P_{1} intercombination line of mercury in the deep ultraviolet, by means of a frequency-comb referenced, wavelength-modulated, saturated absorption technique. This method allowed us to perform sub-Doppler investigations with an absolute frequency axis at 254 nm, while ensuring a relatively high signal-to-noise ratio. The absolute line center frequencies of the ^{200}Hg and ^{202}Hg bosonic isotopes were measured with a global uncertainty of 8 and 15 kHz (namely, 6.
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- Researchers are focusing on miniaturizing atomic vapor cells for quantum sensing and advanced measurements.
- The study explores molecular rovibrational spectroscopy using a thin cell that's micrometers thick, which allows for precision measurements in both telecommunications and mid-infrared regions.
- This technique can lead to applications in compact frequency references, atmospheric studies, and improved accuracy in fundamental physics measurements.