Výsledky vyhledávání - "L. J. P. Ketelsen"

Computer‐assisted system for measuring capacitance and conductance of a diode using a phase sensitive technique

Publikováno v: Review of Scientific Instruments. 52:1905-1909

This paper describes a system for making accurate and reliable ac measurements of capacitance as a function of frequency, bias voltage, and temperature. The experimental apparatus consists of the basic capacitance measuring circuit and an information

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37fa4771647f939fd49cec873b5bbdb6
https://doi.org/10.1063/1.1136546

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InP/InGaAsP lasers with broad area double heterostructure lasers as back‐face monitors

Autor: B. P. Segner, S. G. Napholtz, Henryk Temkin, L. A. Koszi, E. J. Flynn, L. J. P. Ketelsen, G. J. Przybylek

Publikováno v: Journal of Applied Physics. 64:3718-3721

An InP/InGaAsP laser‐monitor hybrid structure which demonstrates the use of channeled‐substrate buried‐heterostructure lasers or broad area double heterostructure devices as ‘‘on‐board’’ edge‐detecting back‐face monitors is presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70d331ed24b481f584e0e04ebef8ce52
https://doi.org/10.1063/1.341415

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Nonlinear susceptibility and relaxation in the XY spin glass Y Tb

Autor: M. B. Salamon, Y. Yeshurun, L. J. P. Ketelsen

Publikováno v: Physical review. B, Condensed matter. 32(11)

Measurements of the nonlinear susceptibility, irreversibility onset, and relaxation of the remanent magnetization are reported for a single-crystal sample of YTbat. %. The data give strong support for the existence of a spin-glass phase transition fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7cdf0674abfb61f1495da6f98b05f87
https://pubmed.ncbi.nlm.nih.gov/9936887

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Growth of low-threshold high-efficiency 1.3-µm InGaAsP/InP distributed feedback lasers by vapor phase epitaxy

Autor: J. P. BLAHA, K. E. STREGE, J. L. ZILKO, L. J. -P. KETELSEN, M. W. FOCHT, V. G. RIGGS, L. A. GRUEZKE, S. N. G. CHU, S. Y. LEUNG, S. A. KEESSER

Publikováno v: Optical Fiber Communication Conference.

We report the growth and fabrication of low-threshold high-power high-yield single-longitudinal 1.3-μm InGaAsP/lnP capped mesa buried heterostructure (CMBH) lasers by a combination of hydride and organometallic vapor phase epitaxial techniques. Usin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec4a66713f748abfbe79496c6d6f86d5
https://doi.org/10.1364/ofc.1989.wb1

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Rotation of the anisotropy direction in anXYspin glass

Autor: L. J. P. Ketelsen, S. E. Inderhees, M. B. Salamon

Publikováno v: Journal of Applied Physics. 61:3628-3629

We have investigated the behavior of the frozen‐in anisotropy of an XY spin glass under the influence of a reorienting field. From experiments performed using a cylindrically shaped single crystal of YTb3 at. %, we find that the anisotropy can be r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04f47a595811650a15e483268f756202
https://doi.org/10.1063/1.338694

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