NASA/Lewis Research Center, 21000 Brookpark Road, Cleveland, OH 44135

A -- OPTICAL TWEEZERS SOL RFQ-086332 DUE 110397 POC Dennis D. Pehotsky, Purchasing Agent, Phone (216) 433-2757, Fax (216) 433-2480, Email Dennis.D.Pehotsky@lerc.nasa.gov WEB: Click here for the latest information about this notice, http://procurement.nasa.gov/EPS/LeRC/date.html#RFQ-086332. E-MAIL: Dennis D. Pehotsky, Dennis.D.Pehotsky@lerc.nasa.gov. Item 1) Optical tweezers compatible with operation with an olympus IX-70 microscope. PER ALL SPECIFICATIONS AS LISTED BELOW. NO EXCEPTIONS!!! Item 2) Frame-grabbing card, AD card and associated control software operating under microsoft visual basic. Cards and software are required to operate the laser tweezers of line 1. SPECIFICATIONS FOR ABOVE ITEM: 1) The tweezers must be able to accept input from either a diode or gas laser source. In the initial configuration, the mechanical and optical subsystems must be compatible with operation using the 1 watt CW, 980 NM wavelength MOPA laser diode sold by SDL, Inc.. (This laser, part number SDL5762-A6, will be procured by NASA and need not be supplied by the vendor of the tweezers.) All optics in this initial configuration shall have their optimal performance at 980NM. 2) The beam must be scanable in the two dimensions of plane of the sample under study. 3) The scan must be computer controlled via a standard IBM PC clone and a digital to analog conversion card. Software must be written in Microsoft Visual Basic operating under the Windows '95 operating system. The software must indicate the position of the beam within the field of view of the microscope on the monitor of the control computer. Frame grabber and D/A conversion cards must be provided. 4) System must be able to draw 40 micron line in the plane of the sample within 30 milliseconds. 5) Focused spot diameter in the sample plane must be no greater than 1.2 micrometer at a wavelength of 980 NM.. 6) The tweezers must have the capability to adjust the focus of the tweezers spot along the optical axis of the beam. 7) The system must provide for scanning of a single beam, with the capability of upgrading to a dual beam system at a later date. 8) The laser tweezers must mount to an Olympus IX-70 microscope via the epi-fluorescence port. 9) The device must contain an optical isolator to prevent reflected feedback (980NM) from reentering the laser cavity. 10) The scan must be accomplished by imaging a gimballedmirror onto the entrance aperture of the microsope objective. The lens that perform this imaging function must be corrected to a wavefront error of no greater than 0.07 waves, RMS at 980 NM.. NOTE: ALL SPECIFICATIONS MUST BE MET, NO EXCEPTIONS!! NO LATE BIDS WILL BE ACCEPTED, NO EXCEPTIONS!! ALL QUESTIONS SHALL BE DIRECTED TO DENNIS D. PEHOTSKY, C/O AT: (216)-433-2757, FAX (216)-433-2480 (0288)

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