Accession Number:

AD0679359

Title:

PLASMA EFFECTS IN SEMICONDUCTORS,

Descriptive Note:

Corporate Author:

BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH PLASMA PHYSICS LAB

Personal Author(s):

• Ancker-Johnson,Betsy

Report Date:

1968-10-01

Pagination or Media Count:

44.0

Abstract:

The review begins with a survey of nonequilibrium plasma production methods and the properties of such plasmas in their as-produced state. The methods are injection, impact ionization, and two-photon absorption. The description of the as-produced properties includes previously unpublished information about plasma distribution during injection and characteristic times involved in plasma decay. Two plasma effects, beyond those associated with plasma production, are discussed in detail, namely the pinch effect and microwave radiation. The status of the theories and experiments describing pinch formation and its properties thereafter are critically examined so that the open questions emerge. No theory for microwave radiation exists. The plethora of observations are grouped into four sets of characteristics the threshold conditions, the spectrum of the radiation, its polar dependence, and the attendant low frequency MHz resistance oscillations. Recent experiments show that a magnetic field is not essential for emission, and some simple, reasonable arguments about the role of a magnetic field in producing radiation, if true, reconcile the conflicting reports concerning the four sets of characteristics. Author

Descriptors:

• *INDIUM ANTIMONIDES
• PLASMAS(PHYSICS)
• MICROWAVE FREQUENCY
• CHARGE CARRIERS
• TRANSPORT PROPERTIES
• BAND THEORY OF SOLIDS
• MAGNETIC FIELDS
• CRYOGENICS
• PHONONS

Subject Categories:

• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE