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Papers by Dennis Trevor

Proceedings of SPIE, 2007

2008 Conference on Lasers and Electro-Optics, 2008

Abstract: Amplified erbium-fiber-laser pulses compressed in large-mode-area fiber show significan... more Abstract: Amplified erbium-fiber-laser pulses compressed in large-mode-area fiber show significantly reduced nonlinearity compared to standard-single-mode fiber. Consequently, supercontinuum generated with the pulses compressed in large-mode-area fiber show a 10 dB increase in ...

ChemInform, 1987

Revue des reactions des agregats de Fe, Nb, V, Co, Ni, Pt avec H 2 , ceux de Co et Nb avec N 2 et... more Revue des reactions des agregats de Fe, Nb, V, Co, Ni, Pt avec H 2 , ceux de Co et Nb avec N 2 et d'autres agregats avec divers hydrocarbures en C 6 . Influence de la taille de l'agregat

We discuss a sol-gel casting technique for fabricating microstructured optical fiber. Both the ad... more We discuss a sol-gel casting technique for fabricating microstructured optical fiber. Both the advantages and challenges associated with this fabrication method are outlined.

Optical Fiber Communication Conference, 2016

We will discuss design principles and properties of large effective area, low loss fibers for C+L... more We will discuss design principles and properties of large effective area, low loss fibers for C+L band transmission. These fibers need to have excellent cabling properties from 1530 to 1610nm.

International Journal of Mass Spectrometry and Ion Processes, 1986

An apparatus is described for the injection and trapping of supersonic bare metal cluster ions in... more An apparatus is described for the injection and trapping of supersonic bare metal cluster ions in a Fourier transform ion cyclotron resonance spectrometer (FT-ICR). Metal clusters were generated in a supersonic beam by laser vaporization of a metal target rod inside a pulsed nozzle. ...

Journal of the American Chemical Society, 1990

ACS Symposium Series, 1985

The Journal of Chemical Physics, 1986

Premiere observation de la dissociation induite par un laser IR des complexes agregat moleculaire... more Premiere observation de la dissociation induite par un laser IR des complexes agregat moleculaire ― adsorbat dans un faisceau moleculaire. Cas du systeme Fe x (CH 3 OH) y

Chemischer Informationsdienst, 1982

The Journal of Chemical Physics, 1988

Pulsed fast flow reactor techniques have been used to study the reactivity of CO toward clusters ... more Pulsed fast flow reactor techniques have been used to study the reactivity of CO toward clusters of many different transition metals; V, Fe, Co, Ni, Cu, Nb, Mo, Ru, Pd, W, Ir, and Pt as well as Al, for clusters containing up to 14 atoms. Clusters are produced by pulsed laser vaporization of metal substrates, injected into the reactor, formed into a molecular beam, and detected by photoionization time of flight mass spectrometry. Our results show that CO is readily chemisorbed on most transition metal clusters containing five or more metal atoms, and that the reactivity for larger clusters varies by a factor of 2 or 3, depending on both cluster size and metal type. Depending on the metal, certain atoms, dimers, trimers, and tetramers exhibit little evidence of reactivity toward CO. This observation is explained in terms of a competition between unimolecular decomposition and collisional stabilization, and leads to a prediction of the ordering of the metal–CO bond strengths.

Table of Contents Pate Abstract I. Introduction References . II. Photoionization Mass Spectroscop... more Table of Contents Pate Abstract I. Introduction References . II. Photoionization Mass Spectroscopy of Rare Gas Diaer* A. B. C. D. Introduction Experiaental Results Discussion 1. Rare Gas Diaer Ionic States 2. Excited States of Rare Gas van der Waals Dimers. . . . 3. The Ionization Process 4. Rare Gas van der Waals Diaer Ionization 5. (He) Discussion n E. Conclusions and Suaaary vii References Tables Figure Captions Figures III. Photoionisation Mass Spectra of a Few Molecules and Clusters. . . „ A. B. C. Introduction Photoionisation Mass Spectroscopy of HH_ and 0, Proton Affinity of H 0 froa CO and H froa H.. . 76 D. Proton Affinity of HjO Results and Discussion froa 1L, C Photo ion Yield of H 1. Introduction 2. Kxperiaantal 3. Results and Discussion >*T*»TmiFT z , X u

Highly oriented, epitaxial Y1Ba2Cu3O7-x thin films were prepared on MgO(100) by molecular beam ep... more Highly oriented, epitaxial Y1Ba2Cu3O7-x thin films were prepared on MgO(100) by molecular beam epitaxy at a substrate temperature of 550–600°C. The in-situ growth was achieved by incorporating reactive oxygen species produced by a remote microwave plasma in a flow-tube reactor. The epitaxial (001) orientation is demonstrated by X-ray diffraction, and ion channeling. In-situ reflection high energy electron diffraction showed that a layer by layer growth has produced a well ordered, atomically smooth surface in the as-grown tetragonal phase of an oxygen stoichiometry of 6.2–6.3. A 500°C anneal in 1 atm of O2 converted the oxygen content to 6.7 to 6.8. Typical superconducting transport properties of a Y1Ba2Cu3O7-x film 1000A thick are ρ(300K)= 325 μΩ-cm, ρ(300K)/ρ(100K)= 2.4, Tc(onset) = 92K, and Tc(R=0) = 82K. The transport Jc at 75K is 1×105 A/cm2, and increases to 1×106 A/cm2 at 70K.

The Journal of Chemical Physics, 1986

Photoionization threshold measurements on niobium clusters Nbx x=4–29, reveal an unprecedentedly ... more Photoionization threshold measurements on niobium clusters Nbx x=4–29, reveal an unprecedentedly strong dependence on x, the number of atoms in the cluster. Major maxima in threshold energies occurring at x=8, 10, and 16 correspond to those clusters recently shown to be unreactive toward molecular deuterium.

Applications of Lasers for Sensing and Free Space …, 2010

... JW Nicholson, C. Headley, J. Phillips, A. Desantolo, E. Gonzalos, S. Ghalmi, MF Yan, PW Wisk,... more ... JW Nicholson, C. Headley, J. Phillips, A. Desantolo, E. Gonzalos, S. Ghalmi, MF Yan, PW Wisk, D. Trevor, J. Fleming, E. Monberg, F. Dimarcello, RS Windeler, JM Fini and DJ DiGiovanni OFS Laboratories, 19 Schoolhouse Road, Suite 105, Somerset NJ, 08873 Phone: (732) 748 ...

The Journal of Physical Chemistry

... (32) Ng, C. Y.; Trevor, DJ; Mahan, BH; Lee, YTJ Chem. Phys. 1976, 65. 4327. resonant intermed... more ... (32) Ng, C. Y.; Trevor, DJ; Mahan, BH; Lee, YTJ Chem. Phys. 1976, 65. 4327. resonant intermediate state with a small value of Re and thus improve the Franck-Condon overlap with the u+ = 0 level of the A2Zljzu+ state in the ionizing transition. ...

The Journal of Physical Chemistry

... Oxygen, Methanol, Methane, and Carbon Monoxide DM Cox, DJ Trevor,+ RL Whetten, and A. Kaldor*... more ... Oxygen, Methanol, Methane, and Carbon Monoxide DM Cox, DJ Trevor,+ RL Whetten, and A. Kaldor* Exxon Research and Engineering Co.. ... Phys. 1985, 83, 2293. (2) (a) Whetten, R. L.; Cox, D. M.; Trevor, D. J.; Kaldor, A. Phys. Reu. Lett. 1985,54, 1494. ...

Proceedings of SPIE, 2007

2008 Conference on Lasers and Electro-Optics, 2008

Abstract: Amplified erbium-fiber-laser pulses compressed in large-mode-area fiber show significan... more Abstract: Amplified erbium-fiber-laser pulses compressed in large-mode-area fiber show significantly reduced nonlinearity compared to standard-single-mode fiber. Consequently, supercontinuum generated with the pulses compressed in large-mode-area fiber show a 10 dB increase in ...

ChemInform, 1987

Revue des reactions des agregats de Fe, Nb, V, Co, Ni, Pt avec H 2 , ceux de Co et Nb avec N 2 et... more Revue des reactions des agregats de Fe, Nb, V, Co, Ni, Pt avec H 2 , ceux de Co et Nb avec N 2 et d'autres agregats avec divers hydrocarbures en C 6 . Influence de la taille de l'agregat

We discuss a sol-gel casting technique for fabricating microstructured optical fiber. Both the ad... more We discuss a sol-gel casting technique for fabricating microstructured optical fiber. Both the advantages and challenges associated with this fabrication method are outlined.

Optical Fiber Communication Conference, 2016

We will discuss design principles and properties of large effective area, low loss fibers for C+L... more We will discuss design principles and properties of large effective area, low loss fibers for C+L band transmission. These fibers need to have excellent cabling properties from 1530 to 1610nm.

International Journal of Mass Spectrometry and Ion Processes, 1986

An apparatus is described for the injection and trapping of supersonic bare metal cluster ions in... more An apparatus is described for the injection and trapping of supersonic bare metal cluster ions in a Fourier transform ion cyclotron resonance spectrometer (FT-ICR). Metal clusters were generated in a supersonic beam by laser vaporization of a metal target rod inside a pulsed nozzle. ...

Journal of the American Chemical Society, 1990

ACS Symposium Series, 1985

The Journal of Chemical Physics, 1986

Premiere observation de la dissociation induite par un laser IR des complexes agregat moleculaire... more Premiere observation de la dissociation induite par un laser IR des complexes agregat moleculaire ― adsorbat dans un faisceau moleculaire. Cas du systeme Fe x (CH 3 OH) y

Chemischer Informationsdienst, 1982

The Journal of Chemical Physics, 1988

Pulsed fast flow reactor techniques have been used to study the reactivity of CO toward clusters ... more Pulsed fast flow reactor techniques have been used to study the reactivity of CO toward clusters of many different transition metals; V, Fe, Co, Ni, Cu, Nb, Mo, Ru, Pd, W, Ir, and Pt as well as Al, for clusters containing up to 14 atoms. Clusters are produced by pulsed laser vaporization of metal substrates, injected into the reactor, formed into a molecular beam, and detected by photoionization time of flight mass spectrometry. Our results show that CO is readily chemisorbed on most transition metal clusters containing five or more metal atoms, and that the reactivity for larger clusters varies by a factor of 2 or 3, depending on both cluster size and metal type. Depending on the metal, certain atoms, dimers, trimers, and tetramers exhibit little evidence of reactivity toward CO. This observation is explained in terms of a competition between unimolecular decomposition and collisional stabilization, and leads to a prediction of the ordering of the metal–CO bond strengths.

Table of Contents Pate Abstract I. Introduction References . II. Photoionization Mass Spectroscop... more Table of Contents Pate Abstract I. Introduction References . II. Photoionization Mass Spectroscopy of Rare Gas Diaer* A. B. C. D. Introduction Experiaental Results Discussion 1. Rare Gas Diaer Ionic States 2. Excited States of Rare Gas van der Waals Dimers. . . . 3. The Ionization Process 4. Rare Gas van der Waals Diaer Ionization 5. (He) Discussion n E. Conclusions and Suaaary vii References Tables Figure Captions Figures III. Photoionisation Mass Spectra of a Few Molecules and Clusters. . . „ A. B. C. Introduction Photoionisation Mass Spectroscopy of HH_ and 0, Proton Affinity of H 0 froa CO and H froa H.. . 76 D. Proton Affinity of HjO Results and Discussion froa 1L, C Photo ion Yield of H 1. Introduction 2. Kxperiaantal 3. Results and Discussion >*T*»TmiFT z , X u

Highly oriented, epitaxial Y1Ba2Cu3O7-x thin films were prepared on MgO(100) by molecular beam ep... more Highly oriented, epitaxial Y1Ba2Cu3O7-x thin films were prepared on MgO(100) by molecular beam epitaxy at a substrate temperature of 550–600°C. The in-situ growth was achieved by incorporating reactive oxygen species produced by a remote microwave plasma in a flow-tube reactor. The epitaxial (001) orientation is demonstrated by X-ray diffraction, and ion channeling. In-situ reflection high energy electron diffraction showed that a layer by layer growth has produced a well ordered, atomically smooth surface in the as-grown tetragonal phase of an oxygen stoichiometry of 6.2–6.3. A 500°C anneal in 1 atm of O2 converted the oxygen content to 6.7 to 6.8. Typical superconducting transport properties of a Y1Ba2Cu3O7-x film 1000A thick are ρ(300K)= 325 μΩ-cm, ρ(300K)/ρ(100K)= 2.4, Tc(onset) = 92K, and Tc(R=0) = 82K. The transport Jc at 75K is 1×105 A/cm2, and increases to 1×106 A/cm2 at 70K.

The Journal of Chemical Physics, 1986

Photoionization threshold measurements on niobium clusters Nbx x=4–29, reveal an unprecedentedly ... more Photoionization threshold measurements on niobium clusters Nbx x=4–29, reveal an unprecedentedly strong dependence on x, the number of atoms in the cluster. Major maxima in threshold energies occurring at x=8, 10, and 16 correspond to those clusters recently shown to be unreactive toward molecular deuterium.

Applications of Lasers for Sensing and Free Space …, 2010

... JW Nicholson, C. Headley, J. Phillips, A. Desantolo, E. Gonzalos, S. Ghalmi, MF Yan, PW Wisk,... more ... JW Nicholson, C. Headley, J. Phillips, A. Desantolo, E. Gonzalos, S. Ghalmi, MF Yan, PW Wisk, D. Trevor, J. Fleming, E. Monberg, F. Dimarcello, RS Windeler, JM Fini and DJ DiGiovanni OFS Laboratories, 19 Schoolhouse Road, Suite 105, Somerset NJ, 08873 Phone: (732) 748 ...

The Journal of Physical Chemistry

... (32) Ng, C. Y.; Trevor, DJ; Mahan, BH; Lee, YTJ Chem. Phys. 1976, 65. 4327. resonant intermed... more ... (32) Ng, C. Y.; Trevor, DJ; Mahan, BH; Lee, YTJ Chem. Phys. 1976, 65. 4327. resonant intermediate state with a small value of Re and thus improve the Franck-Condon overlap with the u+ = 0 level of the A2Zljzu+ state in the ionizing transition. ...

The Journal of Physical Chemistry

... Oxygen, Methanol, Methane, and Carbon Monoxide DM Cox, DJ Trevor,+ RL Whetten, and A. Kaldor*... more ... Oxygen, Methanol, Methane, and Carbon Monoxide DM Cox, DJ Trevor,+ RL Whetten, and A. Kaldor* Exxon Research and Engineering Co.. ... Phys. 1985, 83, 2293. (2) (a) Whetten, R. L.; Cox, D. M.; Trevor, D. J.; Kaldor, A. Phys. Reu. Lett. 1985,54, 1494. ...