Type‐II quantum‐well lasers for the mid‐wavelength infrared

JR Meyer, CA Hoffman, FJ Bartoli… - Applied physics …, 1995 - pubs.aip.org
We discuss an improved mid-wave infrared diode laser structure based on InAs-Ga1xInxSb-InAs-Ga1xAlxSb
Type-II multiple quantum wells. The proposed design combines strong …

Auger lifetime enhancement in InAs–Ga1−xInxSb superlattices

ER Youngdale, JR Meyer, CA Hoffman… - Applied physics …, 1994 - pubs.aip.org
We have experimentally and theoretically investigated the Auger recombination lifetime in
InAs–Ga 1−x In x Sb superlattices. Data were obtained by analyzing the steady‐state …

Semimetal-to-semiconductor transition in bismuth thin films

CA Hoffman, JR Meyer, FJ Bartoli, A Di Venere, XJ Yi… - Physical Review B, 1993 - APS
Field-and temperature-dependent magnetotransport measurements on Bi layers grown by
molecular-beam epitaxy have been analyzed by mixed-conduction techniques. In the thin-film …

Hybridization as an avenue of escape for engineered genes

NC Ellstrand, CA Hoffman - BioScience, 1990 - JSTOR
… Ten major California vegetables illustrate the range of possibilities (Table 1). Crops such as
maize and … For these species, the escape of engineered genes through mating in California

Is available carbon limiting microbial respiration in the rhizosphere?

…, DC Coleman, CR Carroll, CA Hoffman - Soil Biology and …, 1996 - Elsevier
… Its water holding capacity is 35% w/w. The soil was sieved (< 2 mm), homogenized, and
air-dried before use. Winter wheat (Triticum aestivum, Var: GA Gore) seeds were planted around …

In situ measurement of root respiration and soluble C concentrations in the rhizosphere

…, DC Coleman, CR Carroll, CA Hoffman - Soil biology and …, 1993 - Elsevier
… The elapsed time for the labelled-C to reach the roots and soil and appear as 14C02 from
the container was ca 30-60 min. The rates of 14C02 evolution from the root-soil columns of …

The allelic spectrum of Charcot–Marie–Tooth disease in over 17,000 individuals with neuropathy

…, Z Wang, K Liaquat, CA Hoffman… - Molecular genetics & …, 2014 - Wiley Online Library
… The pooled sample library was sequenced on a MiSeq Personal Sequencer (Illumina, San
Diego, CA) following the manufacturer's protocol. The sequencing reads were demultiplexed …

Auger coefficients in type-II quantum wells

…, EH Aifer, LJ Olafsen, JR Lindle, CA Hoffman… - Applied physics …, 1998 - pubs.aip.org
Two different approaches, a photoconductive response technique and a correlation of lasing
thresholds with theoretical threshold carrier concentrations have been used to determine …

Improved quantitative mobility spectrum analysis for Hall characterization

I Vurgaftman, JR Meyer, CA Hoffman… - Journal of Applied …, 1998 - pubs.aip.org
We present an improved quantitative mobility spectrum analysis (i-QMSA) procedure for
determining free electron and hole densities and mobilities from magnetic-field-dependent Hall …

Measurement of surface recombination velocity in semiconductors by diffraction from picosecond transient free‐carrier gratings

CA Hoffman, K Jarašiūnas, HJ Gerritsen… - Applied Physics …, 1978 - pubs.aip.org
Direct measurement of surface recombination velocity has been achieved for n-InP, p-InP,
and n-GaAs by a novel technique which is based on picosecond optical resolution of a …