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Response To "Comment On 'Confined Propagation And Near Single-Mode Laser Oscillation In A Gain-Guided, Index Antiguided Optical Fiber'" Appl. Phys. Lett. 102, 026101 (2013), Michael Bass, Martin C. Richardson, John Ballato
Response To "Comment On 'Confined Propagation And Near Single-Mode Laser Oscillation In A Gain-Guided, Index Antiguided Optical Fiber'" Appl. Phys. Lett. 102, 026101 (2013), Michael Bass, Martin C. Richardson, John Ballato
Faculty Bibliography 2010s
No abstract provided.
Insight Into Morphology Changes Of Nanoparticle Laden Droplets In Acoustic Field, Saptarshi Basu, Erick Tijerino, Ranganathan Kumar
Insight Into Morphology Changes Of Nanoparticle Laden Droplets In Acoustic Field, Saptarshi Basu, Erick Tijerino, Ranganathan Kumar
Faculty Bibliography 2010s
Hollow structures with unique morphologies form due to particle agglomeration in acoustically levitated nanofluid functional droplets when subjected to external heating. The final diameter of the structure depends only on the ratio of agglomeration to evaporation time scales for various nanoparticle laden droplets, and not on the type of the suspended particles. These time scales depend only on nanoparticle concentration. This valuable information may be exploited to form microstructures with desired properties from ceramic compounds. Phase diagrams for alumina and silica droplets indicate the transition from a bowl to ring structure depending on concentration.
Electric Field-Induced Monodomain Blue Phase Liquid Crystals, Yuan Chen, Shin-Tson Wu
Electric Field-Induced Monodomain Blue Phase Liquid Crystals, Yuan Chen, Shin-Tson Wu
Faculty Bibliography 2010s
We demonstrate an electric field-induced monodomain blue phase liquid crystal and its application for polarizer-free reflective displays. Superior to multidomain structure, the monodomain exhibits a relatively high reflectance and narrow bandwidth (similar to 25 nm) so the reflected colors look vivid. As the applied voltage increases, the double-twist structure is gradually unwound so that Bragg reflection decreases leading to analogous grayscale. The submillisecond response time enables this reflective display to play videos without image blurs. Such a monodomain blue phase selectively reflects right-handed circularly polarized light when the employed chiral dopant is right-handed, and the reflected light is nearly circularly …
Semiconductor Laser Monolithically Pumped With A Light Emitting Diode Operating In The Thermoelectrophotonic Regime, X. Liu, G. Zhao, Y. Zhang, D. G. Deppe
Semiconductor Laser Monolithically Pumped With A Light Emitting Diode Operating In The Thermoelectrophotonic Regime, X. Liu, G. Zhao, Y. Zhang, D. G. Deppe
Faculty Bibliography 2010s
Data are presented on a monolithic chip that integrates a quantum well semiconductor laser with a high efficiency light emitting diode (LED), with the LED used to optically pump the laser. The LED operates in the thermoelectrophotonic regime that can produce heat absorption, offering the possibility of heat pump action. The internal optical pumping also offers the possibility of very low internal loss in the laser and the prospect of reaching greater than unity power conversion efficiency in the laser chip. The integrated laser chip is operated and tested under continuous-wave room temperature operation.
Laser-Plasma Source Parameters For Kr, Gd, And Tb Ions At 6.6 Nm, Majid Masnavi, John Szilagyi, Homaira Parchamy, Martin C. Richardson
Laser-Plasma Source Parameters For Kr, Gd, And Tb Ions At 6.6 Nm, Majid Masnavi, John Szilagyi, Homaira Parchamy, Martin C. Richardson
Faculty Bibliography 2010s
There is increasing interest in extreme-ultraviolet (EUV) laser-based lamps for sub-10-nm lithography operating in the region of 6.6 nm. A collisional-radiative model is developed as a post-processor of a hydrodynamic code to investigate emission from resonance lines in Kr, Gd, and Tb ions under conditions typical for mass-limited EUV sources. The analysis reveals that maximum conversion efficiencies of Kr occur at 5 x 10(10) W/cm(2), while for Gd and Tb it was similar or equal to 0.9%/2 pi sr for laser intensities of (2-5) x 10(12) W/cm(2).
Recovery Torque Modeling Of Carbon Fiber Reinforced Shape Memory Polymer Nanocomposites, He Shen, Yunjun Xu, Fei Liang, Jihua Gou, Bob Mabbott
Recovery Torque Modeling Of Carbon Fiber Reinforced Shape Memory Polymer Nanocomposites, He Shen, Yunjun Xu, Fei Liang, Jihua Gou, Bob Mabbott
Faculty Bibliography 2010s
Carbon fiber and carbon nanofiber paper (CF&CNFP) can be incorporated into shape memory polymers (SMPs) to increase electrical conductivity and allow high speed electrical actuation with a low power. This paper studies the interactions among the recovery torques of CF&CNFP and SMP and the gravity torque during the shape recovery process. The proposed recovery torque model in a SMP CF&CNFP based structure is validated by experimental data obtained using a recently developed low cost, non-contact measurement testbed.
A Full-Color Reflective Display Using Polymer-Stabilized Blue Phase Liquid Crystal, Jin Yan, Shin-Tson Wu, Kung-Lung Cheng, Jyh-Wen Shiu
A Full-Color Reflective Display Using Polymer-Stabilized Blue Phase Liquid Crystal, Jin Yan, Shin-Tson Wu, Kung-Lung Cheng, Jyh-Wen Shiu
Faculty Bibliography 2010s
We demonstrate a full-color-capability reflective display using red, green, and blue sub-pixels of polymer-stabilized blue phase liquid crystal (BPLC) with different pitch lengths. Vivid colors originate from three-dimensional BPLC photonic crystalline structure. Surface alignment plays a key role to generate uniform and saturated colors in the voltage-off state. Analogous grayscale is achieved by the electric-field-induced unwinding of double-twist structure. This working principle is drastically different from the phase retardation effect of conventional liquid crystal displays. Moreover, the submillisecond response time enables crisp video displays without image blurring. Potential applications for reflective 3D display are also analyzed.