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Extend your opto mechanical controls with lego for out of box control/servo c...
One can extend the mechanical controls on the opt-mechanical device with Lego and can also possibly servo control the impossible optics.
http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2012/01/12/Extend_your_Opto-mechanical_controls_with_Lego_for_out_of_box_control#Design_and_construction
Team -- iSsistant
This document describes a virtual assistant software called iSsistant that is designed for Apple products. iSsistant can perform tasks like information gathering, calendar modifications, and reminders. It has the capability to expand its functions through updates. The software allows users to name their assistant, access tasks lists and files, and control other Apple programs from one place using voice or text commands. Over time, iSsistant learns about individual users to better anticipate their needs. The software has potential appeal to a wide range of demographics and industries and initial sales estimates project strong demand.
Smallbeadpwsp2
This document discusses power spectrum measurements of trapped beads, providing parameters for the screen, trapped 0.5 um beads, and AOM voltage and input power used. It then shows power spectrum curves for 4 different trapped beads labeled bead1 through bead4.
XY horse motor control with joystick
This document provides instructions for constructing an X Y-motor stage control system using a joystick. It outlines attaching linear motors to stages, stacking the stages, and using a Zaber Console front panel and block diagram to control the motorized stages.
Data11162010
The document discusses DNA mapping data from November 16, 2010 located in a file path. It notes possible stretching was observed in the shotgun DNA mapping experiment conducted on that date.
Motor shutter buildup
Laser shutter build out of a motor and stuff.
http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2011/03/01/Laser_Shutter_.2
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Extend your opto mechanical controls with lego for out of box control/servo c...
One can extend the mechanical controls on the opt-mechanical device with Lego and can also possibly servo control the impossible optics.
http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2012/01/12/Extend_your_Opto-mechanical_controls_with_Lego_for_out_of_box_control#Design_and_construction
Team -- iSsistant
This document describes a virtual assistant software called iSsistant that is designed for Apple products. iSsistant can perform tasks like information gathering, calendar modifications, and reminders. It has the capability to expand its functions through updates. The software allows users to name their assistant, access tasks lists and files, and control other Apple programs from one place using voice or text commands. Over time, iSsistant learns about individual users to better anticipate their needs. The software has potential appeal to a wide range of demographics and industries and initial sales estimates project strong demand.
Smallbeadpwsp2
This document discusses power spectrum measurements of trapped beads, providing parameters for the screen, trapped 0.5 um beads, and AOM voltage and input power used. It then shows power spectrum curves for 4 different trapped beads labeled bead1 through bead4.
XY horse motor control with joystick
This document provides instructions for constructing an X Y-motor stage control system using a joystick. It outlines attaching linear motors to stages, stacking the stages, and using a Zaber Console front panel and block diagram to control the motorized stages.
Data11162010
The document discusses DNA mapping data from November 16, 2010 located in a file path. It notes possible stretching was observed in the shotgun DNA mapping experiment conducted on that date.
Motor shutter buildup
Laser shutter build out of a motor and stuff.
http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2011/03/01/Laser_Shutter_.2
Aom oscillation problem
This document discusses oscillation issues in an AOM system. It tests the oscillation in an X-signal with varying levels of input RF power at 1V, 2V, and 5V both with and without a filter. The results show how the oscillation is affected at different power levels both with and without a filter applied.
SLM Microscope
This is a new product of Actoprobe LLC: Scanning Laser Confocal Microscope. I designed and built the microscope to investigate the defects and laser burn patterns on the mirror and LBO crystal surfaces. The microscope can also be used for bio-imaging.
Search for the noise source and remedy for optical tweezers
Optical tweezers are affected by airborne and mechanical noises; this presentation is a saga of my struggle with it.
Device for studying acoustic & mechanical noise
This document describes a device that can be used to study acoustic and mechanical noise. The device contains a condenser mic and tone generator that can generate frequencies from 100 to 600Hz. It was used to test mechanical vibration transmissibility by placing three different sample holders - an aluminum plate, acrylic plate, and acrylic plate with a cut diaphragm - on the tone generator. Additional tests measured transmissibility using different piezo stage holders made of aluminum, polypropylene, and polypropylene with a rubber cushion.
Lbo crystals characterization confocal
This document discusses scanning confocal microscopy and its use to image the surfaces of lithium triborate (LBO) crystals and mini lenses at different depths. It presents images taken of LBO crystal and mini lens surfaces at depths ranging from 5 to 20 micrometers using various objectives and laser wavelengths. The document concludes by providing contact information for ACTOPROBE LLC, the startup company that develops custom optical spectroscopy and microscopy instruments for atomic force microscopy.
Fiber launch system
This document describes a dual laser fiber launch system using two lasers (405nm and 532nm) and off-the-shelf optical components. The compact and portable system achieves about 10% coupling efficiency to a single-mode fiber using mirrors for parallel alignment and a fiber port to control the fiber's position and tilt. The system is built within an optical cage for stability and uses standard parts, keeping the total cost around $1800 including the lasers.
Beam profiling 1.3um laser
This LabVIEW app allows for quick profiling of laser beam outputs from fiber pigtails using an infrared CCD camera without an IR filter. The simple optical setup directly positions the fiber output in front of the camera. The app generates a 3D plot of the beam profile to check the quality of the single mode fiber output and ensure the laser is coupled to the proper fiber mode. Additional capabilities include real-time laser control and exposure adjustment of the camera software.
3D stage for upright microscope
I designed and built this stable, precise and very maneuverable 3D stage (controlled through Joystick) for any upright microscope configuration. The stage uses Physik Instrumente linear stage, piezo and a Logitech joystick.
An automated and user-friendly optical tweezers for biomolecular investigat...
An automated optical tweezers system was designed and constructed for biomolecular investigations. Key aspects included automation and control of the tweezers, calibration of stiffness and sensitivity, and DNA sample preparation and experiments. Results showed DNA overstretching and unzipping experiments in both water and heavy water. Future work will focus on further automation and investigating DNA-protein interactions.
Noise investigation for Optical Tweezers
1) The document identifies sources of 60Hz noise in optical tweezer data as nearby AC power cables and an ungrounded power supply. Shielding the signal wires and using a battery-powered supply resolved this issue.
2) Testing was done to identify the resonant frequencies of the tweezers setup by applying tones from 0-2000Hz and measuring the effect on the detector output. Resonances were found at 120Hz, 180Hz, and another hit at 180Hz.
3) Comparison of the setup on an optical table versus on a chair found it most sensitive to frequencies below 140Hz for airborne noise and below 400Hz for vibration, with strongest power coupling from frequencies above 150Hz.
Focal Plane Array optical sectioning
Focal Plane Array characterization and side wall morphology through confocal imaging optical sectioning using Scanning Confocal Microscope
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Aom oscillation problem
This document discusses oscillation issues in an AOM system. It tests the oscillation in an X-signal with varying levels of input RF power at 1V, 2V, and 5V both with and without a filter. The results show how the oscillation is affected at different power levels both with and without a filter applied.
SLM Microscope
This is a new product of Actoprobe LLC: Scanning Laser Confocal Microscope. I designed and built the microscope to investigate the defects and laser burn patterns on the mirror and LBO crystal surfaces. The microscope can also be used for bio-imaging.
Search for the noise source and remedy for optical tweezers
Optical tweezers are affected by airborne and mechanical noises; this presentation is a saga of my struggle with it.
Device for studying acoustic & mechanical noise
This document describes a device that can be used to study acoustic and mechanical noise. The device contains a condenser mic and tone generator that can generate frequencies from 100 to 600Hz. It was used to test mechanical vibration transmissibility by placing three different sample holders - an aluminum plate, acrylic plate, and acrylic plate with a cut diaphragm - on the tone generator. Additional tests measured transmissibility using different piezo stage holders made of aluminum, polypropylene, and polypropylene with a rubber cushion.
Lbo crystals characterization confocal
This document discusses scanning confocal microscopy and its use to image the surfaces of lithium triborate (LBO) crystals and mini lenses at different depths. It presents images taken of LBO crystal and mini lens surfaces at depths ranging from 5 to 20 micrometers using various objectives and laser wavelengths. The document concludes by providing contact information for ACTOPROBE LLC, the startup company that develops custom optical spectroscopy and microscopy instruments for atomic force microscopy.
Fiber launch system
This document describes a dual laser fiber launch system using two lasers (405nm and 532nm) and off-the-shelf optical components. The compact and portable system achieves about 10% coupling efficiency to a single-mode fiber using mirrors for parallel alignment and a fiber port to control the fiber's position and tilt. The system is built within an optical cage for stability and uses standard parts, keeping the total cost around $1800 including the lasers.
Beam profiling 1.3um laser
This LabVIEW app allows for quick profiling of laser beam outputs from fiber pigtails using an infrared CCD camera without an IR filter. The simple optical setup directly positions the fiber output in front of the camera. The app generates a 3D plot of the beam profile to check the quality of the single mode fiber output and ensure the laser is coupled to the proper fiber mode. Additional capabilities include real-time laser control and exposure adjustment of the camera software.
3D stage for upright microscope
I designed and built this stable, precise and very maneuverable 3D stage (controlled through Joystick) for any upright microscope configuration. The stage uses Physik Instrumente linear stage, piezo and a Logitech joystick.
An automated and user-friendly optical tweezers for biomolecular investigat...
An automated optical tweezers system was designed and constructed for biomolecular investigations. Key aspects included automation and control of the tweezers, calibration of stiffness and sensitivity, and DNA sample preparation and experiments. Results showed DNA overstretching and unzipping experiments in both water and heavy water. Future work will focus on further automation and investigating DNA-protein interactions.
Noise investigation for Optical Tweezers
1) The document identifies sources of 60Hz noise in optical tweezer data as nearby AC power cables and an ungrounded power supply. Shielding the signal wires and using a battery-powered supply resolved this issue.
2) Testing was done to identify the resonant frequencies of the tweezers setup by applying tones from 0-2000Hz and measuring the effect on the detector output. Resonances were found at 120Hz, 180Hz, and another hit at 180Hz.
3) Comparison of the setup on an optical table versus on a chair found it most sensitive to frequencies below 140Hz for airborne noise and below 400Hz for vibration, with strongest power coupling from frequencies above 150Hz.
Focal Plane Array optical sectioning
Focal Plane Array characterization and side wall morphology through confocal imaging optical sectioning using Scanning Confocal Microscope
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Search for the noise source and remedy for optical tweezers
Search for the noise source and remedy for optical tweezers
An automated and user-friendly optical tweezers for biomolecular investigat...
An automated and user-friendly optical tweezers for biomolecular investigat...