Diffractive optical position detector

Details Diffractive optical position detector Diffractive optical position detector

2005-04-26

2005-04-26

Le, Que T. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C250S306000

Reexamination Certificate

active

06884981

ABSTRACT:
An apparatus and method for measuring optically the position or angle of a variety of objects or arrays of objects, including cantilevers in scanning probe microscopy, micromechanical biological and chemical sensors and the sample or a probe in surface profilometry. The invention involves the use of one or more diffractive optical elements, including diffraction gratings and holograms, combined with conventional optical elements, to form a plurality of light beams, each with a selectable shape and intensity, from a single light source, reflect the beams off mechanical objects and process the reflected beams, all to the end of measuring the position of such objects with a high degree of precision. The invention may also be used to effect mechanical changes in such objects. Devices with these improvements have numerous applications, including molecular force measurements, atomic force microscopy and manipulation technology, lithographic manufacturing, nanometer scale surface profiling and other aspects of nanotechnology.

REFERENCES:
patent: 4669300 (1987-06-01), Hall et al.
patent: 4725142 (1988-02-01), Sharnoff
patent: 5477383 (1995-12-01), Jain
patent: 5825020 (1998-10-01), Hansma et al.
patent: 6018991 (2000-02-01), Nakano
patent: 6032518 (2000-03-01), Prater et al.
patent: 6055106 (2000-04-01), Grier et al.
Altmann, S. M., et al., “Multiple sensor stabilization system for local probe microscopes”, Jan. 2001, Review of Scientific Instruments, vol. 72, No. 1, pp. 142-149.
Grier, D. G., “Optical Tweezers in Colloid and Interface Science,”, Feb. 5, 1997, Current Opinion in Colloid Interface Science, vol. 2, pp. 264-274.
Morgensen, Paul C., et al., “Dynamic array generation and pattern formation for optical tweezers”, Feb. 15, 2000, Optics Communications, vol. 175, pp. 75-81.
Schaffer, Tilman E., et al., “Characterization and optimization of the detection sensitivity of an atomic force microscope for small cantilevers”, J. of Applied Physics, Nov. 1, 1998, vol. 84, No. 9, pp. 4661-4666.
Ashkin, A., “Acceleration and Trapping of Particles by Radiation Pressure”, Jan. 26, 1970, Physical Review Letters, vol. 24, No. 4, pp. 156-159.
Ashkin, A., et al., “Observation of a Single-Beam Gradient Force Optical Trap for Dielectric Particles”, May 1986, Optics Letters, vol. 11, No. 5, pp. 288-290.
Ashkin, A., et al, “Optical Trapping and Manipulation of Single Cells Using Infrared Laser Beams”, Dec. 1987, Nature, vol. 330 24/31, pp. 769-771.
Svoboda and Block, “Biological Applications of Optical Forces”, 1994, Annu. Rev. Biophys. Biomol. Struct., vol. 23, pp. 247-285.
Ashkin, Arthur, “Optical Trapping and Manipulation of Neutral Particles Using Lasers”, May 1997, Proc. Natl. Acad. Sci. USA, vol. 94, pp. 4853-4860.
Sasaki, K., et al., “Pattern Formation and Flow Control of Fine Particles by Laser-Scanning Micromanipulation”, Oct. 1, 1991, Optics Letters, vol. 16, No. 19, pp. 1463-1465.
Dufresne, Eric R., and Grier, David G., “Optical Tweezer Arrays and Optical Substrates Created with Diffractive Optics”, May 1998, Review of Scientific Insturments, vol. 69, No. 5, pp. 1974-1977.
Chiou, Arthur E., et al., “Interferometric Optical Tweezers”, Jan. 1, 1997, Optics Communications, vol. 133, pp. 7-10.
Reicherter, M., et al., “Optical Particle Trapping with Computer-Generated Holograms Written on a Liquid-Crystal Display”, May 1, 1999, Optics Letters, vol. 24, No. 9, pp. 608-610.
Glückstad, Jesper, “Phase Contrast Image Synthesis”, Oct. 1, 1996, Optics Communications, vol. 130, pp. 225-230.
Glückstad, J., et al., “Lossless Light Projection”, Sep. 15, 1997, Optics Letters, vol. 22, No. 18, pp. 1373-1375.
Glückstad and Mogensen, “Reconfigurable Tenary-Phase Array Illuminator Based on the Generalised Phase Contrast Method”, Jan. 1, 2000, Optics Communications, vol. 173, pp. 169-175.
Zernike, F., “How I Discovered Phase Contrast”, Mar. 11, 1955, Science, vol. 121, pp. 345-349.
Glückstad, J., “Pattern Generation by Inverse Phase Contrast”, Feb. 1, 1998, Optics Communications, vol. 147, pp. 16-18.
Glückstad, J., “Graphic Method for Analyzing Common Path Interferometers”, 1998, Appl. Opt, vol. 37, pp. 8151-8152.
Mukohzaka, N., et al., “Diffraction Efficiency Analysis of a Parallel-Aligned Nematic-Liquid-Crystal Spatial Light Modulator”, May 10, 1994, Applied Optics, vol. 33, No. 14, pp. 2804-2811.
Mogensen and Glückstad, “A Phase-Based Optical Ecryption System with Polarisation Encoding”Jan. 1, 2000, Optics Communications, vol. 173, pp. 177-183.
Misawa, H., et al., “Multibeam Laser Manipulation and Fixation of Microparticles”, Jan. 20, 1992, Appl. Phys. Lett., vol. 60, No. 3, pp. 310-312.
Fillman and Axner, “Design for Fully Steerable Dual-Trap Optical Tweezers”, Apr. 1, 1997, Applied Optics, vol. 36, No. 10, pp. 2107-2113.
Simmons, Robert M., et al., “Quantitative Measurements of Force and Displacement Using an Optical Trap”, Apr. 1996, Biophysical Journal, vol. 70, pp. 1813-1822.
Heckenberg, N.R., et al., “Laser Beams with Phase Singularities”, 1992, Optical and Quantum Electronics, vol. 24, pp. S951-S962.
Gahagan and Swartzlander, “Optical Vortex Trapping of Particles”, Jun. 1, 1996, Optics Letters, vol. 21, No. 11, pp. 827-829.
Totzeck and Tiziani, “Phase-Singularities in 2D Diffraction Fields and Interference Microscopy”, Jun. 1, 1997, Optics Communications, vol. 138, pp. 365-382.
Crocker and Grier, “Microscopic Measurement of the Pair Interaction Potential of Charge-Stabilized Colloid”, Jul. 11, 1994, Physical Review Letters, vol. 73, No. 2, pp. 352-356.
Crocker and Grier, “Methods of Digital Video Microscopy for Colloidal Studies”, 1996, Journal of Colloid and Interface Science, vol. 179, pp. 298-310.
Dinsmore, A. D., et al., “Entropic Control of Particle Motion Using Passive Surface Microstructures”, Sep. 19, 1996, Nature, vol. 383, pp. 239-242.
Larsen, and Grier, “Like-Charge Attractions in Metastable Colloidal Crystallites”, Jan. 16, 1997, Nature, vol. 385, pp. 230-233.
Sugimoto, T., et al., “Direct Measurement of laterparticle Forces by the Optical Trapping Technique”, 1997, Langmuir, vol. 13, No. 13, pp. 5528-5530.
Smith, S. B., et al., “Direct Mechanical Measurements of the Elasticity of Single DNA Molecules by Using Magnetic Beads”, Nov. 13, 1992, Science, vol. 258, pp. 1122-1126.
Bustamante, C., et al., “Technical Comments: Entropic Elasticity of λ-Phage DNA”, Sep. 9, 1994, Science, vol. 265, pp. 1599-1600.
Yin, H. et al., “Transcription Against and Applied Force”, Dec. 8, 1995, Science, vol. 270, pp. 1653-1657.
Perkins, T.T., et al., “Stretching of a Single Tethered Polymer in a Uniform Flow”, Apr. 7, 1995, Science, vol. 268, pp. 83-87.
Smith, S.B., et al., “Overstretching B-DNA: The Elastic Response of Individual Double-Stranded and Single-Stranded DNA Molecules”, Feb. 9, 1996,Science,vol. 271, pp. 795-799.
Chakrabarti, J., et al., “Recentrant Melting in Laser Field Modulated Colloidal Suspensions”, Sep. 11, 1995, Physical Review Letters, vol. 75, No. 11, pp. 2232-2235.
Pan, G., et al., “Optically Nonlinear Bragg Diffracting Nanosecond Optical Switches”, May 19, 1997, Physical Review Letters, vol. 78, No. 20, pp. 3860-3863.
Grier, D., “Colloids Make Ultrafast Optical Devices”, Jul. 1997, Physics World, vol. 10, pp. 24-25.
Holtz and Asher, “Polymerized Colloidal Crystal Hydrogel Films as Intelligent Chemical Sensing Materials”, Oct. 1997, Nature, vol. 389, pp. 829-832.
Grier, D., “New Age Crystals”, Oct. 23, 1997, Nature, vol. 389, pp. 784-785.
Blaaderen, A., et al., “Tem

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