摘要:
A disposable rapid cell sorter comprises a microfluidic chip with electrodes and sorts biological cells of interest though a magnetic field and an electric field based on biological cell functional antibody bonded magnetic beads and luminescent labeling.
摘要:
The invention discloses a catalyst and a method for cracking hydrocarbons. The catalyst comprises, calculated by dry basis, 10˜65 wt % ZSM-5 zeolite, 0˜60 wt % clay, 15˜60 wt % inorganic oxide binder, 0.5˜15 wt % one or more metal additives selected from the metals of Group VIIIB and 2˜25 wt % P additive, in which the metal additive is calculated by metal oxide and the P additive is calculated by P2O5. The method for cracking hydrocarbons using this catalyst increases the yield of FCC liquefied petroleum gas (LPG) and the octane number of FCC gasoline, as well as it increases the concentration of propylene in LPG dramatically.
摘要:
Semiconductor packaging methods, systems and apparatus for semiconductor lasers to achieve high modulation bandwidth. Systems, methods and apparatus for minimizing the inductance of wire bond interconnects and impedance matching in a semiconductor laser package. Systems, methods and apparatus for monitoring a photocurrent in order to provide automatic power control (APC) of a semiconductor laser.
摘要:
A tunable vertical cavity surface emitting laser (VCSEL) is formed by providing a gap in its laser cavity that can be adjusted to vary the gap distance therein to change the resonance of the cavity and the wavelength of photons that are generated. A pump laser provides a pump source of photons that are coupled into the laser cavity of the vertical cavity surface emitting laser. The vertical cavity surface emitting laser is coupled to a piezo-electric submount to form the gap in the laser cavity. The gap distance is adjusted to tune the vertical cavity surface emitting laser around its center wavelength by applying a voltage (i.e., an electric field) across the piezo-electric submount which causes mechanical stress therein. Alternate embodiments are disclosed including a joined unit of elements to form the tunable vertical cavity surface emitting laser as well as a system of elements to form the tunable vertical cavity surface emitting laser.
摘要:
A method of fabricating a vertical cavity surface emitting laser comprising the steps of epitaxially growing a first DBR positioned on a substrate wherein the first DBR is epitaxially grown using MOCVD. The substrate is orientated in an off-axis crystallographic direction which increases the radiative efficiency. A first cladding layer is positioned on the first DBR and an active region is epitaxially grown on the first cladding layer wherein the active region is epitaxially grown using plasma assisted MBE. A second DBR is epitaxially grown on the second cladding layer wherein the second DBR is epitaxially grown using MOCVD. The active region is epitaxially grown using plasma assisted MBE to increase the mole fraction of nitrogen (N) incorporation. The DBR's are grown using MOCVD to improve the electrical performance.
摘要:
A vertical cavity surface emitting laser with polarization control includes a first stack of distributed Bragg reflectors positioned on a substrate with an active region including a first cladding region and a second cladding region positioned on opposite sides of an active area overlying the first stack of distributed Bragg reflectors A second stack of distributed Bragg reflectors is positioned on the active region. The second stack has an ion implantation region formed to control and define a lasing threshold of the laser. The second stack further is formed into a ridge with the ridge being etched into the ion implantation region to form an elongated shape so as to polarize light emitted by the second stack of distributed Bragg reflectors
摘要:
A bio-molecule analyzer including a plurality of test sites on a transparent substrate, each test site having probe molecules attached thereto. An array of addressable light sources are positioned in optical alignment with a corresponding test site. A solution containing sample molecules is positioned in contact with the plurality of test sites. A detector array having a plurality of photodetectors positioned in optical alignment with the array of addressable light sources, one photodetector corresponding to each light source, and a light filter positioned between the detector array and the plurality of test sites for absorbing the light from the light sources and transmitting the light from the test sites to the detector array.
摘要:
A first stack (112) of distributed Bragg reflectors, a first cladding region (114) disposed on the first stack of distributed Bragg reflectors (112) and including a defect inhibition layer (117) an active area (122) disposed on the first cladding region (114), a second cladding region (132) disposed on the active area (122) and including a defective inhibition layer (136), and a second stack (140) of distributed Bragg reflectors disposed on the second cladding region (132). The defect inhibition layers (117, 136) substantially prevent defects in the active area (122).
摘要:
A disposable rapid cell sorter comprises of microfluidic chip with electrodes and sorts biological cells of interest through magnetic field and electric field based on biological cell functional antibody bonded magnetic beads and luminescent labeling.
摘要:
Pluggable fiber optic modules having a receive printed circuit board and a transmit printed circuit board perpendicular with an interface printed circuit board with an edge connection. The edge connection of the interface printed circuit board to plug into and out from an edge connector of a host printed circuit board. A transmitter optoelectronic device is coupled to the transmit printed circuit board. A receiver optoelectronic device is coupled to the receive printed circuit board. The pluggable fiber optic modules may further include a support base, a nose receptacle, and an alignment plate.