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Dual-Arm Z-Scan Technique To Extract Dilute Solute Nonlinearities From Solution Measurements, Manual R. Ferdinandus, Matthew Reichert, Trenton R. Ensley, Honghua Hu, Dmitry A. Fishman, Scott Webster, David J. Hagan, Eric W. Van Stryland
Dual-Arm Z-Scan Technique To Extract Dilute Solute Nonlinearities From Solution Measurements, Manual R. Ferdinandus, Matthew Reichert, Trenton R. Ensley, Honghua Hu, Dmitry A. Fishman, Scott Webster, David J. Hagan, Eric W. Van Stryland
Faculty Bibliography 2010s
We present a technique in which small solute nonlinearities may be extracted from large solvent signals by performing simultaneous Z-scans on two samples (solvent and solution). By using a dual-arm Z-scan apparatus with identical arms, fitting error in determining the solute nonlinearity is reduced because the irradiance fluctuations are correlated for both the solvent and solution measurements. To verify the sensitivity of this technique, the dispersion of nonlinear refraction of a squaraine molecule is measured. Utilizing this technique allows for the effects of the solvent n(2) to be effectively eliminated, thus overcoming a longstanding problem in nonlinear optical characterization of …
Feature Issue Introduction: Mid-Ir Photonic Materials, Juejun Hu, Jerry Meyer, Kathleen Richardson, Lawrence Shah
Feature Issue Introduction: Mid-Ir Photonic Materials, Juejun Hu, Jerry Meyer, Kathleen Richardson, Lawrence Shah
Faculty Bibliography 2010s
The mid-infrared (mid-IR, 2.5 to 10 mu m wavelengths) is a strategically important spectral band for an array of applications such as thermal imaging, chem/bio sensing, spectroscopy, infrared countermeasures, and free space communications. Mid-IR photonics have emerged as an active area of investigation in recent years, largely spurred by the rapid progress of cascade laser sources, uncooled detectors, and specialty mid-IR optical fibers. The 26 papers of this feature issue focus on the leading enabling material technologies for mid-IR photonics, and encompass recent advances in both active (lasers and detectors) and passive (fibers and waveguides) components. Linear and nonlinear photon-matter …
Si-Cmos Compatible Materials And Devices For Mid-Ir Microphotonics, Pao Tai Lin, Vivek Singh, Jianfei Weng, Hongtao Lin, Juejun Hu, Kathleen Richardson, J. David Musgraves, Igor Luzinov, Joel Hensley, Lionel C. Kimberling, Anu Agarwal
Si-Cmos Compatible Materials And Devices For Mid-Ir Microphotonics, Pao Tai Lin, Vivek Singh, Jianfei Weng, Hongtao Lin, Juejun Hu, Kathleen Richardson, J. David Musgraves, Igor Luzinov, Joel Hensley, Lionel C. Kimberling, Anu Agarwal
Faculty Bibliography 2010s
CMOS compatible mid-Infrared (mid-IR) microphotonics including (1) broadband SOUP (Silicon on Oxide Undercladding Pedestal) waveguides; and (2) mid-IR transparent chalcogenide glass (ChGs) waveguides monolithically integrated with a PbTe thin film photodetector; are demonstrated. Using a pedestal undercladding geometry we obtain an optical loss for our Si waveguide which is 10 dB/cm lower compared to other waveguides using planar SiO2 cladding at lambda = 5 mu m, and a fundamental mode is seen over a broad mid-IR spectral range. To realize a fully integrated mid-IR on-chip system, in parallel, we develop PbTe thin film detectors that can be deposited on various …
Modeling Of The Induced Refractive Index Kinetics In Photo-Thermo-Refractive Glass, Julien Lumeau, Leonid B. Glebov
Modeling Of The Induced Refractive Index Kinetics In Photo-Thermo-Refractive Glass, Julien Lumeau, Leonid B. Glebov
Faculty Bibliography 2010s
Photo-thermo-refractive (PTR) glass is a photosensitive multi-component silicate glass that exhibits refractive index change after successive UV-exposure and thermal treatment. The refractive index change was demonstrated to be associated with the precipitation of NaF nano-crystals in the glass matrix. This paper presents a systematic study of the dependence of the refractive index change on dosage of UV-exposure and thermal treatment duration and temperature in already UV-exposed and nucleated samples. It is shown using Avrami plots that the refractive index change in PTR glass is determined by a diffusion-controlled growth of particles from pre-existing nuclei while all coefficients have exponential dependence …
Incorporation Of Luminescent Cdse/Zns Core-Shell Quantum Dots And Pbs Quantum Dots Into Solution-Derived Chalcogenide Glass Films, Spencer Novak, Luca Scarpantonio, Jacklyn Novak, Marta Dai Pré, Alessandro Martucci, Jonathan D. Musgraves, Nathan D. Mcclenaghan, Kathleen Richardson
Incorporation Of Luminescent Cdse/Zns Core-Shell Quantum Dots And Pbs Quantum Dots Into Solution-Derived Chalcogenide Glass Films, Spencer Novak, Luca Scarpantonio, Jacklyn Novak, Marta Dai Pré, Alessandro Martucci, Jonathan D. Musgraves, Nathan D. Mcclenaghan, Kathleen Richardson
Faculty Bibliography 2010s
CdSe/ZnS core-shell quantum dots (CSQDs) and PbS quantum dots (QDs) were synthesized using a colloidal method and incorporated into Ge23Sb7S70 glass films via a solution-derived approach to film formation. Photoluminescence (PL) from the QDs inside the glass matrix was observed in the visible (CdSe/ZnS) and near-IR (PbS) regions. Properties of the QDs were found to be environment dependent, with the amine solvent partially quenching the luminescence. The PL lifetime of the CdSe/ZnS CSQDs and PbS QDs in the glass film was decreased to varying degrees from that of the QDs in pure chloroform. Monitoring the steady-state PL intensity and luminescence …
Feature Issue Introduction: Optical Ceramics, Jas Sanghera, Takunori Taira, Romain Gaume
Feature Issue Introduction: Optical Ceramics, Jas Sanghera, Takunori Taira, Romain Gaume
Faculty Bibliography 2010s
This feature offers 11 papers in the field of optical ceramics, and encompasses advances in optics, materials science, condensed matter, as well as physics and chemistry relevant to the development of new optical materials. Topics covered include material technologies in the field of polycrystalline ceramics, single crystals, and glass ceramics in the form of bulk and microstructured materials along with methods to fabricate the materials and a description of their optical properties pertinent for many applications.
Thermal Poling Behavior And Shg Stability In Arsenic-Germanium Sulfide Glasses, William T. Shoulders, Jacklyn Novak, Marc Dussauze, J. David Musgraves, Kathleen Richardson
Thermal Poling Behavior And Shg Stability In Arsenic-Germanium Sulfide Glasses, William T. Shoulders, Jacklyn Novak, Marc Dussauze, J. David Musgraves, Kathleen Richardson
Faculty Bibliography 2010s
Second-order optical properties of thermally poled arsenic-germanium sulfide glasses have been investigated. Parallel studies of glass structure changes upon poling and/or visible cw-laser irradiation and complete SHG quantitative analysis have been performed. Key parameters and poling mechanisms influencing largely SHG stability and efficiency have been pointed out.