Zobrazeno 1 - 10
of 62
pro vyhledávání: '"S. R. Bowman"'
Autor:
Michael Hunt, L. Brandon Shaw, Woohong Kim, S. R. Bowman, Shyam S. Bayya, Christopher L. Brown, Jasbinder S. Sanghera, Darryl A. Boyd
Publikováno v:
High-Brightness Sources and Light-driven Interactions.
We report our progress in fabrication ceramic Praseodymium doped Calcium Lanthanum Sulfide for potential mid-IR laser gain material. Fabrication and spectroscopy of this new gain material will be reported.
Autor:
S. R. Bowman, Leslie Brandon Shaw, Dan Rhonehouse, Brad Stadleman, W. Kim, Daniel J. Gibson, John R. Peele, Jas S. Sanghera, Rajesh Bahadur Thapa, Jason D. Myers, Shyam S. Bayya, Charles G. Askins, Joseph W. Kolis, Syed N. Qadri
Publikováno v:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI.
Various rare earth doped single crystal YAG and sesquioxide fibers have been drawn using a state-of-the-art Laser Heated Pedestal Growth system. All crystalline core/clad fibers where thermal and optical properties are superior over glass based fiber
Autor:
Daniel L. Rhonehouse, Rajesh Bahadur Thapa, W. Kim, L. Brandon Shaw, Jason D. Myers, Shyam S. Bayya, S. R. Bowman, John R. Peele, Daniel J. Gibson, Jasbinder S. Sanghera, Noor Qadri, Charles G. Askins
Publikováno v:
Optical Components and Materials XIV.
Single crystal fibers are currently being developed for high power single frequency lasers in 1-2 µm region. Crystal fibers offer several advantages over traditional glass fibers such as silica fiber due to their higher thermal conductivity and high
Autor:
Michael Hunt, S. R. Bowman, Christopher L. Brown, Woohong Kim, Jasbinder S. Sanghera, Shyam S. Bayya, L. Brandon Shaw
Publikováno v:
Conference on Lasers and Electro-Optics.
We report on fabrication and spectroscopy of ceramic Praseodymium doped Calcium Lanthanum Sulfide for potential mid-IR laser gain material.
Autor:
Jason D. Myers, Gryphon Drake, W. Kim, Jas S. Sanghera, F. H. Kung, Darryl A. Boyd, V.Q. Nguyen, S. R. Bowman, Colin C. Baker, Collin McClain
Publikováno v:
Chemical communications (Cambridge, England). 53(1)
A novel method combining elemental sulfur and selenium was developed, yielding crystalline sulfur–selenium compounds. The compounds were melted, and an organic comonomer added. Once the organic comonomer was consumed, the viscous compound was vitri
Publikováno v:
Optical Materials. 34:1603-1609
Optical absorption spectra, emission spectra, and fluorescence lifetimes were measured for a number of visible and infrared transitions in Ho 3+ doped KPb 2 Cl 5 . Judd–Ofelt parameters were obtained by using the conventional approach, as well as b
Autor:
S. R. Bowman
Publikováno v:
Applied optics. 54(31)
Waste heat generation is a generic problem in high-power solid-state laser systems. One way to reduce heat loading while improving efficiency is to reduce the laser's quantum defect. This paper presents a simple analysis of low quantum defect laser m
Publikováno v:
IEEE Journal of Quantum Electronics. 46:1076-1085
Novel high-power ytterbium YAG lasers are described. These lasers incorporate the principle of anti-Stokes fluorescence cooling to reduce or eliminate detrimental heating. Lasers with net heating and net cooling are demonstrated. By balancing the spo
Publikováno v:
Optical Materials. 30:827-834
Polarized excited-state absorption spectra for the 4 I 13/2 → 4 I 9/2 transition in Er:KPb 2 Cl 5 were determined from the measured 4 I 9/2 → 4 I 13/2 emission spectra using the reciprocity relation of [D.E. McCumber, Phys. Rev. 136 (1964) A954].
Autor:
Brandon Shaw, Rafael R. Gattass, Woohong Kim, Shyam S. Bayya, Charles G. Askins, Jas S. Sanghera, Rajesh Thapa, S. R. Bowman, John R. Peele
Publikováno v:
Advanced Solid State Lasers.
We report on fabrication and optical properties of double clad single crystal Yb:YAG core fiber. For the first time, net gain is demonstrated in a cladding pumped Yb:YAG single crystal fiber structure.