Active Thermal Metasurfaces for Remote Heating/Cooling by Mimicking Negative Thermal Conductivity.
Sign Up to like & getrecommendations! Published in 2022 at "Advanced materials"
DOI: 10.1002/adma.202210981
Abstract: Remote temperature control can be obtained by a long-focus thermal lens that can focus heat fluxes into a spot far from the back surface of the lens and create a virtual thermal source/sink in the… read more here.
Keywords: active thermal; thermal lens; thermal metasurfaces; conductivity ... See more keywords
Study of thermal lens technique and third-order nonlinear susceptibility of PMMA base containing 5′, 5′′-dibromo-o-cresolsulfophthalein
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-017-7661-4
Abstract: Measurements of the third-order nonlinear susceptibility of 5′, 5′′-dibromo-o-cresolsulfophthalein (BCP) in a chloroform solvent were studied using a cw diode laser at 532 nm as the source of excitation, both in solution and as a poly… read more here.
Keywords: order; thermal lens; third order; order nonlinear ... See more keywords
Investigation of thermal behavior and the Soret effect in binary fluids by thermal lens technique: Effect of alkyl chain
Sign Up to like & getrecommendations! Published in 2021 at "International Communications in Heat and Mass Transfer"
DOI: 10.1016/j.icheatmasstransfer.2021.105419
Abstract: Abstract In the present study, pump-probe thermal lens spectroscopy was used to probe the thermal behavior and molecular interactions in the binary liquid mixtures of acetone, and 1-alkanol. Values of thermal conductivity, thermal diffusivity and… read more here.
Keywords: binary fluids; chain; thermal behavior; thermal lens ... See more keywords
Analytical study of flat-topped beam characterization using the thermal lens method in sample liquids
Sign Up to like & getrecommendations! Published in 2018 at "Optik"
DOI: 10.1016/j.ijleo.2018.04.031
Abstract: Abstract In the present work, the effect of a thermal lens generated by a pump beam on the propagation of a flat-topped probe beam is investigated. The analysis of results shows that the thermal lens… read more here.
Keywords: probe beam; thermal lens; analytical study; flat topped ... See more keywords
Study of the effect of temperature on thermophysical properties of ethyl myristate by dual-beam thermal lens technique
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2021.168000
Abstract: Abstract One of the components of biodiesels is ethyl myristate and the study and measurement of its thermal parameters are of great importance. The dual-beam laser thermal lens spectroscopy is used for accurate measurement of… read more here.
Keywords: temperature; thermal lens; ethyl myristate; thermal diffusivity ... See more keywords
Suppression of thermal lens effect in high-pulse-energy Ti:sapphire amplifiers
Sign Up to like & getrecommendations! Published in 2017 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2016.08.004
Abstract: Abstract In high-pulse-energy Ti:sapphire amplifiers with moderate repetition rate, the thermal lens effect can significantly decrease the energy extraction efficiency and increase the risk of optical damage. A new method, without introducing any additional components,… read more here.
Keywords: seed; sapphire; energy; thermal lens ... See more keywords
Investigation of allowed and forbidden electronic transitions in rare earth doped materials for laser cooling application by thermal lens spectroscopy
Sign Up to like & getrecommendations! Published in 2019 at "Optical Materials"
DOI: 10.1016/j.optmat.2019.109195
Abstract: Abstract In this work Thermal Lens Spectroscopy (TLS) is used for sensitive characterization of absorption in optical materials with particular application for solid-state laser cooling (optical refrigeration). TLS is used to characterize key parameters involved… read more here.
Keywords: investigation; application; spectroscopy; laser cooling ... See more keywords
Remote cooling by a novel thermal lens with anisotropic positive thermal conductivity
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/srep40949
Abstract: A novel thermal lens that can achieve a remote cooling effect is designed by transformation thermodynamics. The effective distance between the separate hot source and cold source is shortened by our shelled thermal lens without… read more here.
Keywords: thermal lens; thermal conductivity; novel thermal; cooling novel ... See more keywords
Thermal diffusivity of ferrofluids as a function of particle size determined using the mode-mismatched dual-beam thermal lens technique
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5017025
Abstract: Ferrofluids are colloids of superparamagnetic nanoparticles that are envisaged for use in hyperthermia, which is based on nonradiative relaxation after interaction with a high-frequency magnetic field or light. For such applications, an important parameter is… read more here.
Keywords: mode mismatched; diffusivity; thermal diffusivity; thermal lens ... See more keywords
Hemichrome Determination by Thermal Lensing with Polyethylene Glycols for Signal Enhancement in Aqueous Solutions
Sign Up to like & getrecommendations! Published in 2018 at "Analytical Letters"
DOI: 10.1080/00032719.2017.1391828
Abstract: ABSTRACT The thermal lens technique is proposed for the determination of total hemoglobin in the form of reversible hemichrome. The conditions were optimized (concentration of sodium dodecyl sulfate, 2 mM) to attain the maximum sensitivity with… read more here.
Keywords: determination; polyethylene glycols; aqueous solutions; thermal lens ... See more keywords
Megawatt-Level Repetitively Pulsed Erbium 3-µm Laser with Strong Thermal Lens Compensation
Sign Up to like & getrecommendations! Published in 2020 at "Jetp Letters"
DOI: 10.1134/s0021364020200023
Abstract: We report on the average power increase of a repetitively pulsed (10 Hz) nanosecond 3-µm laser due to the compensation of a strong thermal lens in the Cr:Er:YSGG laser cavity maintaining the megawatt-level peak power.… read more here.
Keywords: laser; strong thermal; compensation; thermal lens ... See more keywords