Continuous-wave, fourfold upconversion laser

We report a new Er3+:LiYF4 cryog enic upconversion laser pumped by a fourfold upconversion ... to irradiation with a continuous-wave (cw) NaCl laser a...

0 downloads 0 Views 376KB Size

Recommend Documents

laser sources available at wavelengths shorter than that of the argon-ion laser at 458 nm. Cw mode- locked dye lasers operate only to -500 nm,1 and solid-state ...

Jun 13, 2016 - S V Kuznetsov1, J A Rozhnova1, V I Konov1,2 and V B Loschenov1,2 ...... [14] Gainer C F, Joshua G S, De Silva C R and Romanowski M.

L. Zhou and E.Y. Chen contributed equally to this work. Synthesis of ZnPc-(COOH)4. OH. HOOC. +. NC. NC. NO2. K2CO3. NC. NC. O. COOH n-pentanol.

Apr 23, 2008 - 4CNR-INFM CRS-SOFT, c/o Universita` di Roma ''La Sapienza,'' I-00185, Rome, Italy ... structurally similar to other group-IV oxide glasses.

variety of a double cover of a trigonal curve, and Pantazis showed in. [P] that the Prym varieties associated to the bigonal construction of. Donagi (c.f. [D1]) are ...

A = 0.5516 pm, corresponding to the 4S3/2(1)-"115 /2(4) transition with mixed o- and r polarization owing to. Kramer's degeneracy. This laser transition termi-.

where n1, n2, n3, n4, n5 are the fractions of erbium ions on different levels as shown in ... World Academy of Science, Engineering and Technology. International ...

May 17, 2017 - Scanning Laser Upconversion Microscopy offers the deep penetration ... intermediate state. c) Energy transfer upconversion. The presence of ...

Feb 9, 2013 - work [10] demonstrated the application of Gd2O2S: Yb, Er as another potential candidate ... hexagonal phase (JCPDS Card no.26-1422). The XRD results ... excitation in samples Gd2O2S:Yb(4.5)Ho(0.5) [GOS], La2O2S:Yb(8). Ho(0.5) [LOS] and

Feb 26, 2015 - a Department of Chemistry, National University of. Singapore, Singapore 117543, Singapore. E-mail: [email protected] b Institute of Materials ...

if X/C is a special cubic fourfold associated to some polarized K3 surface S, .... space Fd of degree d polarized K3 surfaces, we have in this way found a ...

Mar 10, 2014 - NaYF4:Yb3+/Tm3+ nanospheres (blue), UCPL of NaYF4:Yb3+/Er3+ nanospheres (yellow green), UCPL of NaYF4:Yb3+/Er3+ nanospheres through green and red ...... wavelength absorption pH probe bromothymol blue (BTB).363 ...... Lafferty, E. I.;

coating method using trifluoroacetic acid as a fluorine source. ... strong ultraviolet (UV) upconversion luminescence of the thin film was observed. To compare the .... sion of the powder in the 200–750 nm wavelength range under 980 nm ...

The usual fluorescence behavior follows Stokes law, where exciting photons are of .... Relative time scales for absorption, fluorescence and phosphorescence.

Transient fluorescence spectroscopy is a powerful tool for the study of various aspects of intra- and intermolecular dynamics in .... results in a basic relationship between the Einstein coefficients. Aeg = 8πhc˜ν3Beg. (2.8) ... The experiment con

layer due to the accumulation of cells, lipid, and matrix, which subsequently lead to ..... NaN3 caused a marked decrease in the rate of ABDA decay, ..... treatment could be the key to induce apoptosis in THP-1 ..... to expand the subendothelial laye

The PEC cell consisted of fused optically flat silica possessing a cubic shape equipped with a Teflon cap where all the ... PEC linear sweep voltammetry (LSV) experiments were also performed to obtain photocurrent response as a function ..... Phys.,

Feb 19, 2016 - (NIR) range renders the minimization of non-absorption loss of solar photons with ... rationally designed double hydrophilic star-like poly(acrylic.

Mar 15, 2016 - facilitated substantial loading capacity for anticancer drug molecules and their sustainable release manner. Additionally, amino-coumarin was ...

Mar 20, 2013 - In the second step, 150 mg of. PAA was added into a ..... Singh SK, Hawkins C, Clarke ID, Squire JA, Bayani J, Hide T, et al. Identification of human .... single cell level using ultra-sensitive stem cell labeling with oligo-arginine .

Aug 25, 2015 - Upconversion nanoparticles capable of converting near-infrared light to .... immunotherapy [29], solar energy conversion [30] and in forensic.

Above 75 K, the shallow trap excitation is thermally depleted, via the (quasi-) exciton band, to fast-trapping non-emissive sites. At liquid helium temperatures, the depletion of the highest-lying shallow traps is frozen out. At room temperature, the

Nov 24, 2013 - energy to defects, even in stoichiometric compounds with a high Yb3+ content (calculated as 98mol%). This allows us to generate an unusual four-photon-promoted violet upconversion emission from Er3+ with an intensity that is more than

First, studies were performed on curcumin in methanol, ethylene glycol, and chloroform to understand the effect of intermolecular hydrogen bonding on ESIHT.[44] Second, micellar systems composed of sodium dodecyl sulfate (SDS), dodecyl trimethyl ammo