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<TITLE> LABORATORY OF OPTICAL SPECTROSCOPY </TITLE>
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<h2>Mieczyslaw Tadeusz BOROWIEC</h2>
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LABORATORY OF OPTICAL SPECTROSCOPY <BR>
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<U><H3> Investigations: </H3></U> <P>
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<LI> absorption, luminescence  7um-0.2um  1.1K-500K, also in uniaxial stress to 1000 Atm (1.5K-4.2K)
<LI> photoconductivity, photo-Hall   10K-300K   to 0.7T
<LI> termoabsorption , thermoluminescence
<LI> optical investigation in magnetic field for Voigt and Faraday configuration   to 8T   4-300K in prep.
<LI> optical investigation in  nitrogen atmosphere  in NIR in prep.
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<U><H3> Materials: </H3></U> <P>
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<LI> sillenites  Bi12GeO20, Bi12SiO20, Bi12TiO20, with TM and RE dopants
<LI> double tungstenians   KDy(WO4)2, RbDy(WO4)2, CsDy(WO4)2, KEr(WO4)2, RbNd(WO4)2, KYb(WO4)2, KLu(WO4)2, KGd(WO4)2, KTm(WO4)2, 
<LI> eulynite  Bi4Ge3O12 with TM dopants
<LI> orthoaluminates   TbAlO3, DyAlO3
<LI> orthochromites, orthoferrites    ReCrxAl1-xO3, ReFexAl1-xO3
<LI> superconductors      YBa2Cu3O6+x
<LI> garnets    YGG:Ca;Al
<LI> spinels    LiGa5O8:Cu
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<LI> phase-sensitive Lock-In Princeton Applied Research Model 5208 and 5209 + polish Lock-Ins
<LI>crygenics: CF1104 Oxford Instruments, transport, spectroscopy, 4-500K<BR>
               two stage Closed Cycle Cryogenic refrigerator System Model 22 made by Cryo Industries Of America (transport, including Photo-Hall,  10-300K)<BR>
               two home made cryostat  to 1.5K and 1.1K (including uniaxial stress),<BR> 
               continuous flow optical cryostat system Janis model STVP-100
<LI> superconducting magnet to 8T with optical contr-cryostat  4-300K
<LI> high efficiency pump Alcatel
<LI> excitation lamp: PTI system with PowerArc™ lamp housing with a 150 watt xenon lamp and OBB's quarter-meter class, Czerny-Turner type monochromator
<LI> excitation lasers: Ar, Kr (4W), N2 300kW, pulse 1-100Hz
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<U><H3> Automatization: </H3></U> <P>
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<LI> data acquisition system built on computer PIII class with IEEE 488 bus driver and step motors controlled monochromators (SPM2, PTI), multimeters, lock'in
<LI> data acquisition system built on computer PII class with IEEE 488 bus driver and step motor controlled monochromator GDM1000, multimeters, lock'in
<LI> two computers P4 class with scaner and laser printer for data presentation
<LI> data acquisition system built on computer Core2Duo class with IEEE 488 bus driver and two step motors controlled monochromators SPM2, lock'in <BR>
		and three axial rotating step motors for sample and light polarized - UNDER CONSTRUCTION
<LI> Tektronix digital oscilloscope model TDS2024
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<center>Last updated 2012.01.13</center>
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