2,126 research outputs found
Services provided in support of the planetary quarantine requirements of the National Aeronautics and Space Administration, April - June 1971
Research in microbiology for planetary quarantin
Services provided in support of the planetary quarantine requirements of NASA Progress report, 1 Jul. - 30 Sep. 1968
Evaluation of vacuum probe for sampling dust and microbiological surface contaminatio
Services provided in support of the planetary quarantine requirements, January - March 1969
Heat shock effects on bacterial spore recovery and Apollo 9, 10, and 11 microbial contamination dat
Research on microbiological sterilization problems Progress report, Apr. - Jun. 1968
Techniques and instrumentation for Apollo spacecraft sterilization and microbial bioassay
Microorganisms detected on Apollo spacecraft Technical report, Jan. - Mar. 1970
Quantitative analysis of microorganisms found on Apollo spacecraf
Comparative levels and survival of naturally occurring microorganisms deposited on surfaces through handling and aerial fallout a preliminary report
Death rates of microorganisms deposited on surfaces of stainless steel and electronic components by handling and aerial fallout - Decontamination technique
Recovery of Viable Microorganisms from Solids. I - Model Systems
Solidification process for recovering viable microorganisms to aid spacecraft sterilization procedure
Cavity-enhanced optical detection of carbon nanotube Brownian motion
Optical cavities with small mode volume are well-suited to detect the
vibration of sub-wavelength sized objects. Here we employ a fiber-based,
high-finesse optical microcavity to detect the Brownian motion of a freely
suspended carbon nanotube at room temperature under vacuum. The optical
detection resolves deflections of the oscillating tube down to 50pm/Hz^1/2. A
full vibrational spectrum of the carbon nanotube is obtained and confirmed by
characterization of the same device in a scanning electron microscope. Our work
successfully extends the principles of high-sensitivity optomechanical
detection to molecular scale nanomechanical systems.Comment: 14 pages, 11 figure
On-chip III-V monolithic integration of heralded single photon sources and beamsplitters
We demonstrate a monolithic III-V photonic circuit combining a heralded
single photon source with a beamsplitter, at room temperature and telecom
wavelength. Pulsed parametric down-conversion in an AlGaAs waveguide generates
counterpropagating photons, one of which is used to herald the injection of its
twin into the beamsplitter. We use this configuration to implement an
integrated Hanbury-Brown and Twiss experiment, yielding a heralded second-order
correlation that confirms single-photon
operation. The demonstrated generation and manipulation of quantum states on a
single III-V semiconductor chip opens promising avenues towards real-world
applications in quantum information
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