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1 Dec 1970

Volume 17, Issue 11, pp. 469-502


SURFACE CHARGE TRANSPORT IN SILICON

W. E. Engeler, J. J. Tiemann, and R. D. Baertsch

Appl. Phys. Lett. 17, 469 (1970); http://dx.doi.org/10.1063/1.1653272 (4 pages) | Cited 12 times

Online Publication Date: 21 October 2003

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Surface charge was successfully transported by means of a series of overlapping conductor‐insulator‐semiconductor capacitor plates. The transport mechanism involves a field‐driven diffusionlike phenomenon which is analyzed theoretically, and the results are compared to experiments performed on simple structures.

EFFECTS OF DOPING PROFILE ON THE MEASURED VELOCITY‐ELECTRIC FIELD CHARACTERISTIC OF n‐TYPE GaAs

Gary H. Glover

Appl. Phys. Lett. 17, 472 (1970); http://dx.doi.org/10.1063/1.1653273 (3 pages) | Cited 6 times

Online Publication Date: 21 October 2003

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It is shown in this letter that the measured velocity‐electric field (v‐E) characteristic of n‐type GaAs differes substantially from the intrinsic v‐E characteristic if the doping density of the sample is nonuniform. A simple analysis of the effect is given which compares favorably with a more complete calculation and with experimental results. The heretofore unexplained large variation in measured v‐E characteristics is readily predicted by the present theory if reasonable assumptions are made regarding sample inhomogeneity.

OBSERVATION OF SPONTANEOUS MODE LOCKING IN A HIGH‐PRESSURE CO2 LASER

D. L. Lyon, E. V. George, and H. A. Haus

Appl. Phys. Lett. 17, 474 (1970); http://dx.doi.org/10.1063/1.1653274 (3 pages) | Cited 6 times

Online Publication Date: 21 October 2003

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Spontaneous mode locking has been observed in a high‐pressure CO2 laser. The mode‐locked pulses were found to be separated by 2L∕c. Pulse separations as short as 11 nsec were achieved. The pulse shapes suggest that two axial cavity modes dominate the laser behavior.

REVERSE I‐V CHARACTERISTICS OF THE Na☒Si SCHOTTKY BARRIER

N. Szydlo, R. Poirier, and M. Kleefstra

Appl. Phys. Lett. 17, 477 (1970); http://dx.doi.org/10.1063/1.1653275 (2 pages) | Cited 4 times

Online Publication Date: 21 October 2003

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The Schottky barrier height at the interface between metallic sodium and vacuum‐cleaved n‐type Si has been found to be 0.43±0.02 eV. Ther barrier height was determined from measurements of the reverse current‐voltage characteristic of Schottky diodes in a vacuum of 10−8 Torr and at 288°K. The measured value is close to the results of other workers on the alkaline‐earth metals and shows that the barrier height is strongly controlled by the surface‐state density at the metal‐semiconductor interface.

ELECTRON BEAM INDUCED STRESS WAVES IN SOLIDS

F. C. Perry

Appl. Phys. Lett. 17, 478 (1970); http://dx.doi.org/10.1063/1.1653276 (4 pages) | Cited 7 times

Online Publication Date: 21 October 2003

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Large‐amplitude stress waves have been generated in solids by means of a very high current pulsed electron beam. The electron beam has an average energy of 3 MeV, current of 40 000 A, and pulse duration of approximately 70 nsec. The back surface velocity profiles were measured using a laser‐Doppler interferometer. Data obtained for 6061‐T6 aluminum indicated a slow rise of the plastic wave, thus suggesting the importance of strain rate effects. The utility of the technique for materials research at high pressures and temperatures is discussed.

CONTINUOUS STIMULATED SPIN‐FLIP RAMAN SCATTERING IN InSb

A. Mooradian, S. R. J. Brueck, and F. A. Blum

Appl. Phys. Lett. 17, 481 (1970); http://dx.doi.org/10.1063/1.1653277 (3 pages) | Cited 40 times

Online Publication Date: 21 October 2003

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The first cw operation of a Raman laser is reported. Using a 5‐μm CO laser we have observed two stimulated Stokes lines by scattering from spin‐flip excitations of conduction electrons in InSb in a magnetic field. Observed threshold powers were about 200 mW for the first Stokes line.

NONLINEAR OPTICAL PROPERTIES OF PERIODIC LAMINAR STRUCTURES

N. Bloembergen and A. J. Sievers

Appl. Phys. Lett. 17, 483 (1970); http://dx.doi.org/10.1063/1.1653278 (4 pages) | Cited 139 times

Online Publication Date: 21 October 2003

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Some novel phase‐matching schemes are suggested for nonlinear processes occurring in a composite layered structure of GaP and GaAs.

ELECTRIC AND MAGNETIC RESONANCES OF A PARTICULATE MAGNETOPLASMA: IDENTIFICATION BY MICROWAVE PROPAGATION IN THE VOIGT CONFIGURATION

F. L. Galeener, A. A. Saralkar, and J. K. Furdyna

Appl. Phys. Lett. 17, 486 (1970); http://dx.doi.org/10.1063/1.1653279 (3 pages) | Cited 2 times

Online Publication Date: 21 October 2003

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We present a theoretical model for the propagation of plane electromagnetic waves through a discontinuously inhomogeneous magnetoplasma. The model predicts selective excitation of magnetic resonances in the ordinary Voigt configuration and electric resonances in the extraordinary. Measurements of microwave transmission through powdered n‐type InSb in an applied magnetic field verify this prediction and establish the character of related resonances previously observed in the Faraday configuration. We conclude that the particle‐size‐independent resonances of the system are electric dipole in character and thus appear in its effective permittivity, while the size‐dependent resonances are magnetic and contribute to the effective permeability. Formulas for effective wave propagation constants are given.

OPTICAL PARAMETRIC OSCILLATION IN LITHIUM IODATE

Lawrence S. Goldberg

Appl. Phys. Lett. 17, 489 (1970); http://dx.doi.org/10.1063/1.1653280 (3 pages) | Cited 8 times

Online Publication Date: 21 October 2003

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Optical parametric oscillation has been achieved in LiIO3 pumped by a pulsed ruby laser, with tunable output to 4μ. Operation of the singly resonant oscillator is described and threshold measurements are compared with theory.

ON THE COUPLING OF AN HIGH‐CURRENT RELATIVISTIC ELECTRON BEAM TO A SLOW WAVE STRUCTURE

John A. Nation

Appl. Phys. Lett. 17, 491 (1970); http://dx.doi.org/10.1063/1.1653281 (4 pages) | Cited 81 times

Online Publication Date: 21 October 2003

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Annular relativistic electron beams carrying currents of 30–40 kA at energies of 200–500 keV have been propagated through a cylindrically symmetric, annular, ridged waveguide. An interaction between the electron beam and a backward wave in the guide has been observed. This leads to oscillations in the range 7.8–9.7 GHz at power levels of about 10 MW in a 30‐nsec pulse.

A NEW MODEL FOR THE TEMPERATURE‐DEPENDENT CdS LASER

R. F. Leheny, K. L. Shaklee, E. P. Ippen, R. E. Nahory, and J. L. Shay

Appl. Phys. Lett. 17, 494 (1970); http://dx.doi.org/10.1063/1.1653282 (4 pages) | Cited 13 times

Online Publication Date: 21 October 2003

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The temperature dependence of laser wavelength and threshold pump power of a CdS platelet laser operating from 2 to 240°K are presented. A model is proposed that demonstrates how the temperature dependence of band edge absorption determines the variation of laser wavelength and threshold pump power over this temperature range.

STABLE, EFFICIENT, OPTICAL PARAMETRIC OSCILLATORS PUMPED WITH DOUBLED Nd: YAG

R. W. Wallace

Appl. Phys. Lett. 17, 497 (1970); http://dx.doi.org/10.1063/1.1653283 (3 pages) | Cited 20 times

Online Publication Date: 21 October 2003

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Singly resonant LiNbO3 oscillators with pump depletion as high as 67% and average visible powers as high as 105 mW are reported. These oscillators are pumped with the doubled frequencies of a repetitively pulsed Nd: YAG laser to produce tunable radiation from 0.55 to 3.65 μm. A bleaching of optically induced index inhomogeneities has been observed when operating at relatively high average powers.

AN EFFICIENT LARGE OPTICAL CAVITY INJECTION LASER

H. F. Lockwood, H. Kressel, H. S. Sommers, and F. Z. Hawrylo

Appl. Phys. Lett. 17, 499 (1970); http://dx.doi.org/10.1063/1.1653284 (4 pages) | Cited 40 times

Online Publication Date: 21 October 2003

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A new GaAs injection laser structure is described in which the optical cavity thickness is very large and is varied independently of that of the pair recombination region. Large optical cavities are possible because the radiation propagates predominantly in low‐loss n‐type material. The problem of catastrophic degradation is greatly reduced because of the lower optical flux density.
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ERRATA: A FIELD‐INDEPENDENT OPTICALLY PUMPED 85Rb MASER OSCILLATOR

W. A. Stern and R. Novick

Appl. Phys. Lett. 17, 502 (1970); http://dx.doi.org/10.1063/1.1653285 (1 page)

Online Publication Date: 21 October 2003

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ERRATA: PASSIVE Q‐SWITCHING OF A N2O LASER USING ETHYLENE

Henri Brunet and François Voignier

Appl. Phys. Lett. 17, 502 (1970); http://dx.doi.org/10.1063/1.1653286 (1 page)

Online Publication Date: 21 October 2003

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