نتایج جستجو برای: yttrium emission

تعداد نتایج: 184664  

Journal: :Nature communications 2014
P Siyushev K Xia R Reuter M Jamali N Zhao N Yang C Duan N Kukharchyk A D Wieck R Kolesov J Wrachtrup

Rare-earth-doped crystals are excellent hardware for quantum storage of photons. Additional functionality of these materials is added by their waveguiding properties allowing for on-chip photonic networks. However, detection and coherent properties of rare-earth single-spin qubits have not been demonstrated so far. Here we present experimental results on high-fidelity optical initialization, ef...

2016
Rui Ye Chao Xu Xingjun Wang Jishi Cui Zhiping Zhou

Near-infrared up-conversion lasing in erbium(Er)-yttrium(Y) chloride silicate nanowires was demonstrated when pumped by 1476 nm laser at room temperature. The emission covers a very wide wavelength range (400-1000 nm). A clear threshold for 985 nm peak was observed at a launched average pump power of approximately 7 mW. Above threshold, the intensity increases linearly when turning up the pump ...

Journal: :Biomaterials science 2015
Tamotsu Zako Miya Yoshimoto Hiroshi Hyodo Hidehiro Kishimoto Masaaki Ito Kazuhiro Kaneko Kohei Soga Mizuo Maeda

The use of near-infrared (NIR) light over 1000 nm (OTN-NIR or second NIR) is advantageous for bioimaging because it enables deep tissue penetration due to low scattering and autofluorescence. In this report, we describe the application of rare earth ion-doped ceramic nanoparticles to cancer-targeted NIR imaging using erbium and ytterbium ion-doped yttrium oxide nanoparticles (YNP) functionalize...

Journal: :Hellenic journal of nuclear medicine 2009
Julie Vasamiliette Peter Hohenberger Stefan Schoenberg Steffen Diehl Dietmar J Dinter Alexander Marx Philipp Stroebel Ludwig G Strauss Antonia Dimitrakopoulou-Strauss

A 39 years old male patient with a history of an unresectable thymoma and synchronous liver metastases was referred tor our position. The patient had been originally treated with systemic chemotherapy followed by imatinib (Glivec) and sunitinib (Sutent). Since the therapeutic response was unsatisfactory, a gallium-68 ((68)Ga)-Dotatoc-positron emission tomography (PET) was performed and demonstr...

2010
Sergey M. Borisov Karl Gatterer Brigitte Bitschnau Ingo Klimant

A new thermographic phosphor based on chromium(III)-doped yttrium aluminum borate (YAB) is obtained as single crystals by high temperature flux growth and as a microcrystalline powder via solution combustion synthesis. The phosphor is excitable both in the blue (lambda(max) 422 nm) and in the red part of the spectrum (lambda(max) 600 nm) and shows bright NIR emission. The brightness of the phos...

2015
Hoda Rezaei Roshan Ahmadreza Azarm Babak Mahmoudian Jalil Pirayesh Islamian

Radioembolization (RE) with Yttrium-90 ((90)Y) microspheres is an effective treatment for unresectable liver tumors. The activity of the microspheres to be administered should be calculated based on the type of microspheres. Technetium-99m macroaggregated albumin ((99m)Tc-MAA) single photon emission computed tomography/computed tomography (SPECT/CT) is a reliable assessment before RE to ensure ...

Journal: :journal of lasers in medical sciences 0
shiva alavi 1skin diseases and leishmaniasis research center, isfahan university of medical sciences, isfahan, iran 2skin and stem cell research center, tehran university of medical sciences, tehran, iran ehsan abolhasani skin and stem cell research center, tehran university of medical sciences, tehran, iran sharin asadi skin and stem cell research center, tehran university of medical sciences, tehran, iran mohammadali nilforoushzadeh skin and stem cell research center, tehran university of medical sciences, tehran, iran

introduction: ablative and nonablative lasers have been used to treat melasma. we aimed to assess and compare the combining q-switched nd:yag laser (qsnyl) and fractional erbium:yag laser (feyl) with qsnyl alone in treatment of melasma. methods: this randomized controlled clinical trial was performed in our research center during 2013-2014. women with melasma and without a history of keloid for...

Journal: :Dalton transactions 2013
Evgeny V Baranov Georgy K Fukin Tatyana V Balashova Anatoly P Pushkarev Ivan D Grishin Mikhail N Bochkarev

New 8-quinolinolate (Q) complexes of yttrium (1) and ytterbium (2) were synthesized by the reactions of Cp3Y and Yb[N(SiMe3)2]3 with 3 equiv. of 8-hydroxyquinoline in a DME solution. Single crystal X-ray analysis revealed the trinuclear molecular structure of the compounds Ln3Q9. The LDI-TOFMS investigation displayed that under the laser impact the compounds split off Q(-) anions to give Ln3Q8(...

Journal: :The Review of scientific instruments 2010
W S Harris D J Den Hartog N C Hurst

A pulse-burst laser has been installed for Thomson scattering measurements on the Madison Symmetric Torus reversed-field pinch. The laser design is a master-oscillator power-amplifier. The master oscillator is a commercial Nd:YVO(4) laser (1064 nm) which is capable of Q-switching at frequencies between 5 and 250 kHz. Four Nd:YAG (yttrium aluminum garnet) amplifier stages are in place to amplify...

2003
E. J. Bosze G. A. Hirata L. E. Shea-Rohwer J. McKittrick

The low-voltage efficiency of the blue-emitting phosphor, cerium activated yttrium silicate (Y1 mCem)2SiO5, has been improved by co-activating with gadolinium, (Y1 m nCemGdn)2SiO5. Gd 3+ improves the efficiency by transferring energy to Ce, and makes this phosphor a more promising candidate for low-voltage field emission flat panel displays. Low-voltage cathodoluminescence and photoluminescence...

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