APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue

15 Jun 1967

Volume 10, Issue 12, pp. 333-363


A GaAs1−xPx NEGATIVE‐RESISTANCE LIGHT‐EMITTING DIODE

G. C. Gerhard and H. A. Jensen

Appl. Phys. Lett. 10, 333 (1967); http://dx.doi.org/10.1063/1.1728200 (2 pages) | Cited 3 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
The electrical and optical properties of double‐injection diodes fabricated from GaAs1−xPx are described. Under forward‐biased conditions, these diodes exhibit both negative resistance and visible light emission characteristics.

RESONANCE BEHAVIOR OF THE DIELECTRIC CONSTANT OF GaAs AT MICROWAVE FREQUENCIES

R. D. Larrabee and W. A. Hicinbothem

Appl. Phys. Lett. 10, 334 (1967); http://dx.doi.org/10.1063/1.1728201 (3 pages) | Cited 7 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
It has been observed that the lattice dielectric constant of single‐crystal gallium arsenide exhibits a broad resonance centered at about 9.5 GHz. The magnitude of the changes of dielectric constant associated with this resonance is comparatively large, but the magnitude of the losses associated with it is quite low. No satisfactory explanations for this resonance behavior has been suggested to date.

RUBY‐LASER‐PUMPED OPTICAL PARAMETRIC OSCILLATOR WITH ELECTRO‐OPTIC EFFECT TUNING

L. B. Kreuzer

Appl. Phys. Lett. 10, 336 (1967); http://dx.doi.org/10.1063/1.1728202 (3 pages) | Cited 11 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
Optical parametric oscillation has been achieved in LiNbO3 in the range 1 to 1.08 μ with a peak parametric power of 38 × 103 W. The oscillator which was tuned both by rotation of the crystal in an external optical cavity and by the electro‐optic effect was pumped at 6943 Å by a ruby laser of 3 × 106 W peak power. The observed electro‐optic tuning agreed with that calculated from measured values of the electro‐optic coefficients.

LUMINESCENCE FROM PLASTICALLY BENT CRYSTALS OF CADMIUM SULFIDE

Hiroji Mitsuhashi, Jun‐ichi Chikawa, and Tadahisa Nakayama

Appl. Phys. Lett. 10, 339 (1967); http://dx.doi.org/10.1063/1.1728203 (3 pages) | Cited 3 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
Plastically bent crystals of CdS exhibit different luminescent spectra at 77°K depending on the type of edge dislocations. The bending of the crystals around an axis in a [0110] direction permits selective introduction of either Cd or S dislocations after completion of polygonization in conformity to the sense of the bending. The crystals with S dislocations showed two emission bands at about 6350 Å and 7400 Å of much more brightness than those with Cd dislocations.

SIMULTANEOUS EXPOSURE‐DEVELOPMENT OF HOLOGRAMS ON 649‐F FILM

David H. Casler and Harold D. Pruett

Appl. Phys. Lett. 10, 341 (1967); http://dx.doi.org/10.1063/1.1728204 (2 pages) | Cited 1 time

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
A technique is presented for controlling holographic exposure times by directly viewing the reconstructed image during the exposure period. Results and applications are discussed.

THE ANOMALOUS APPEARANCE OF LASER OSCILLATION AT 6401 Å

Irwin Tobias and William M. Strouse

Appl. Phys. Lett. 10, 342 (1967); http://dx.doi.org/10.1063/1.1728205 (3 pages) | Cited 8 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF


See Also: Erratum

Show Abstract
The anomalous appearance of 6401 Å He‐Ne laser oscillation in certain cavity configurations is attributed to the presence in the active medium of a radial variation in the density of neon atoms in the 1s5 metastable level. A number of experiments are described which test this hypothesis and the results of all are consistent with it.

CRITICAL CONDUCTION AND INDUCED CURRENTS IN THE SURFACE OF Nb (25%) Zr RIBBON AT LOW FIELDS

C. T. M. Chang and M. A. R. LeBlanc

Appl. Phys. Lett. 10, 344 (1967); http://dx.doi.org/10.1063/1.1728206 (4 pages) | Cited 2 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
The level of conduction and induced currents required for the onset of entry or exit of flux in an ``infinite'' slab of Nb (25%) Zr ribbon cooled through Tc in a static, parallel magnetic field depends on the sense of the currents. A small Meissner effect is observed in this material. We argue that a net paramagnetic current is induced in the surface layer during cooling through Tc in a static field H < Hc2.

A SEALED‐OFF MICHELSON TYPE CO2 LASER FOR DIAGNOSTIC STUDIES OF GASEOUS PLASMAS

W. J. Witteman

Appl. Phys. Lett. 10, 347 (1967); http://dx.doi.org/10.1063/1.1728207 (3 pages) | Cited 6 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
An experimental arrangement of a Michelson type CO2 laser for plasma diagnostic studies of ac discharges is described. The principle of the apparatus is based on the phenomena of strong competition between the rotational transitions. If a phase shift is caused by the plasma to be studied, the intensity distribution of the lasing transitions is changed. The system has been used successfully for measuring (with a wavelength of 10.6 μ) changes in refractive index on the order of 10−9.

SOME APPROACHES TO VACUUM UV AND X‐RAY LASERS

M. A. Duguay and P. M. Rentzepis

Appl. Phys. Lett. 10, 350 (1967); http://dx.doi.org/10.1063/1.1728208 (3 pages) | Cited 90 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
The ejection of electrons from inner shells of atoms through photoionization is suggested as a straightforward means of creating population inversions at vacuum uv and x‐ray wavelengths. This can be accomplished by photon sources covering broad bands. Sodium vapor and solid copper are examined as possible candidates for laser action at 372 Å and 1.54 Å, respectively. A first‐rise traveling wave pump must be used; pumping powers required for superradiant operation run into several gigawatts, with rise times ranging from 10−9 sec in the near‐vacuum uv to 10−15 sec in the x‐ray region.

SPECTROSCOPIC DETERMINATION OF Cs (62P1∕2) EXCITED STATE CONCENTRATIONS IN Cs‐Ar LOW‐PRESSURE GAS DISCHARGES

R. Bleekrode and C. Van Trigt

Appl. Phys. Lett. 10, 352 (1967); http://dx.doi.org/10.1063/1.1728209 (3 pages) | Cited 4 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
The results of a spectroscopic determination of the concentration of excited Cs atoms in the 62P1∕2 state as present in a low‐pressure Cs‐Ar discharge are presented. The concentrations are calculated from the measured absorption from a continuum source using a numerically calculated curve of growth for which the effects of hyperfine splitting are properly taken into account. At low current densities the excited state concentration varies linearly with the free electron concentration and the Cs ground state concentration as well. This result is used to estimate the effect of the trapping of the 62P1∕2−62S1∕2 resonance radiation on the lifetime of the 62P1∕2 state.

CURRENT SATURATION AND PHOTOFERROELECTRIC EFFECT IN SbSI

V. M. Fridkin, I. I. Groshik, V. A. Lakhovizkaya, M. P. Mikhailov, and V. N. Nosov

Appl. Phys. Lett. 10, 354 (1967); http://dx.doi.org/10.1063/1.1728210 (3 pages) | Cited 14 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
The illumination of the ferroelectric SbSI in the spectral region where a maximum of photoconductivity of this crystal took place (λ ≃ 6200 Å) decreased the ferroelectric polarization. This resulted in the appearance of a region of saturation of the V‐I characteristic and in the decrease of the pyrocurrent, being measured in the phase transition. The influence of illumination on the ferroelectric polarization in SbSI was observed in a relatively wide temperature interval below the Curie temperature.

TEMPERATURE DEPENDENCE OF MICROWAVE EMISSION FROM INDIUM ANTIMONIDE

T. O. Poehler

Appl. Phys. Lett. 10, 356 (1967); http://dx.doi.org/10.1063/1.1728211 (3 pages) | Cited 4 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
The microwave emission characteristics of n‐type indium antimonide have been studied as a function of temperature and magnetic field intensity. Microwave emission at 10 GHz has been detected at temperatures as high as 250°K in a magnetic field of 6.5 kOe.

COUPLING BETWEEN SLOW WAVES AND CONVECTIVE INSTABILITIES IN SOLIDS

J. M. Hammer

Appl. Phys. Lett. 10, 358 (1967); http://dx.doi.org/10.1063/1.1728212 (3 pages) | Cited 2 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
In an interaction between slow electromagnetic waves carried by metallic circuits and drifting carriers in solids it is shown that the presence of negative differential mobility inhibits the traveling‐wave tube type of interaction at electron drift velocities greater than the phase velocity. At electron drift velocities below the wave phase velocity, however, the presence of negative differential mobility provides gain. The result agrees with the physical picture of an ``absorption'' by a negative resistance giving wave growth.

CONTRIBUTIONS OF SURFACE STATES TO MOS IMPEDANCE

Horst Preier

Appl. Phys. Lett. 10, 361 (1967); http://dx.doi.org/10.1063/1.1728213 (3 pages) | Cited 44 times

Online Publication Date: 30 November 2004

Full Text: | Download PDF

Show Abstract
The broad time constant dispersion of states at the Si‐SiO2 interface can be explained by the tunneling model introduced by F. P. Heiman and G. Warfield.1 The spectrum of time constants is caused by the exponential decay of the effective capture cross section for larger tunneling distances. A good agreement between theory and experiments was obtained for the oxide traps concentrated within about 10 Å from the interface.
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close