摘要:

Spontaneous annealing was observed at room temperature of the electron irradiation induced defect in lithium diffused oxygen‐rich silicon. Some implications of this observation are discussed.

ISSN:0003-6951    

DOI:10.1063/1.1651897

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

Repetitive pulsing of the CO2laser has been obtained as a result of absorption by formic acid vapor, propylene gas, heated CO2gas or heated CO2‐propylene mixtures. Pulsing rates of close to 105pulses per second have been obtained. Remarkable stability in the frequency and amplitude of the pulses has been observed. Any CO2line can be pulsed without difficulty, and it is suggested that a proper match of absorber lines and laser lines should permit pulsing of other types of infrared lasers.

ISSN:0003-6951    

DOI:10.1063/1.1651898

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

Stimulated emission of recombination radiation has been observed at 78°K inn‐type GaAs ionized by the passage of Gunn domains. Output pulses are about 2 nsec long, and have a bandwidth of 30 Å; more than half the light is emitted within 8° of the normal to the polished specimen face.

ISSN:0003-6951    

DOI:10.1063/1.1651899

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

A technique is described for obtaining atomically clean GaAs surfaces by evaporating epitaxially a GaAs layer on the bulk crystal under ultrahigh vacuum. Photoemission sensitivities of 220 &mgr;A/lumen have been obtained, with high quantum yields in the near‐infrared region.

ISSN:0003-6951    

DOI:10.1063/1.1651900

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

We have combined vapor‐liquid‐solid mechanisms with a moving‐mask‐growth technique in a study of the nucleation and condensation of single‐crystal silicon films deposited on amorphous dielectric substrates by vacuum evaporation of silicon. Using this VLS‐MMG approach we have grown silicon single crystals up to 50 × 300 &mgr; in lateral dimension on fused quartz substrates at substrate temperatures of 800 to 900°C.

ISSN:0003-6951    

DOI:10.1063/1.1651901

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

Image information at 1.6 &mgr; has been converted to the green by mixing it with highly collimated ruby laser radiation in lithium niobate. About 50 lines resolution has been achieved, limited only by the laser beam quality. A tenfold increase on this should be attainable with a single transverse mode laser.

ISSN:0003-6951    

DOI:10.1063/1.1651902

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

A magnon sideband associated with an isolated Co single‐ion optical transition is reported in Co‐doped MnF2. Measurements of the temperature dependence of the absorption, after the subtraction of the thermal contribution to the line shift, indicates the presence of local order above the Ne´el temperature.

ISSN:0003-6951    

DOI:10.1063/1.1651903

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

An instrumented jet aircraft has been used to probe regions of the clear atmosphere where an enhancement of radiation backscattered from a ground‐based ruby laser was observed. In twenty‐seven cases, established over five nights of observation, the aircraft encountered light turbulence in clear air in regions of enhanced backscattering.

ISSN:0003-6951    

DOI:10.1063/1.1651904

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

Mode‐locking a CO2laser through the use of a GaAs intracavity acousto‐optic loss modulator is reported. Also presented are the results of an analysis which includes the important effect of nonlinear saturation on the output power.

ISSN:0003-6951    

DOI:10.1063/1.1651905

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

Photoelectric measurements on cleavedp+InP show that a process of cesiation and oxidation can produce a work function lower than the InP bandgap. Efficient photoemission results, with luminous efficiencies of 450 &mgr;A/lumen or better, and a threshold at 1.24 eV (1 &mgr;).

ISSN:0003-6951    

DOI:10.1063/1.1651906

出版商:AIP    

年代:1968

数据来源: AIP