Photomechanical effect in films of polyvinylidene fluoride

Sarkisov, Sergey S.; Curley, Michael J.; Fields, Aisha; Sarkisov II, Sergey S.; Adamovsky, Grigory
October 2004
Applied Physics Letters;10/4/2004, Vol. 85 Issue 14, p2747
Academic Journal
Photothermal bending of strips of polyvinylidene fluoride was initiated by a laser beam with a power of a few milliwatts. A bending strip generated a force of 10-4 N that propelled a 1 g oscillating wheel of a mechanical clock. The frequency of photomechanical resonance at pulsed illumination was inversely proportional to the length of the strip. The proposed model explained bending as a result of uneven thermal expansion on opposite sides of the strip. The model predicted, in agreement with experiment, that the force is proportional to beam power and does not depend on the shape or position of the beam in the strip.


Related Articles

  • Dilatometric and thermo-optic properties of alkaline earth and cadmium fluorides between 300 and 1300 K. Aurora, T. S.; Day, S. M.; Pederson, D. O. // Journal of Applied Physics;8/15/1994, Vol. 76 Issue 4, p2122 

    Provides information on a study which described the dilatometric and thermo-optic properties of alkaline earth and cadmium fluorides between 300 and 1300 K. Measurement of temperature variation of the coefficients of the linear thermal expansion and optical length; Activity undergone by the...

  • Supersonic regimes of plasma expansion during optical breakdown in air. Ilyin, Alexey A.; Nagorny, Ivan G.; Bukin, Oleg A. // Applied Physics Letters;4/26/2010, Vol. 96 Issue 17, p171501 

    Expansion regimes of plasma (fast ionization wave, laser supported radiation wave, and laser supported detonation wave) produced by laser–induced breakdown in air have been studied. To determine a pattern of plasma expansion a numerical investigation of propagation velocity dependence on...

  • A sub-40-mHz-linewidth laser based on a silicon single-crystal optical cavity. Kessler, T.; Hagemann, C.; Grebing, C.; Legero, T.; Sterr, U.; Riehle, F.; Martin, M. J.; Chen, L.; Ye, J. // Nature Photonics;Oct2012, Vol. 6 Issue 10, p687 

    State-of-the-art laser frequency stabilization by high-finesse optical cavities is limited fundamentally by thermal noise-induced cavity length fluctuations. We present a novel design to reduce this thermal noise limit by an order of magnitude as well as an experimental realization of this new...

  • Analytical stress modeling of high-energy laser windows: Application to fusion-cast calcium fluoride windows. Klein, Claude A. // Journal of Applied Physics;8/15/2005, Vol. 98 Issue 4, p043103 

    The performance of a laser-window material must be assessed not only in terms of its ability to transmit high-power beams without generating undue optical distortion but also in terms of the constraints imposed by stress-related failure modes. In operational use, the stress field images the...

  • High resolution quantum cascade laser studies of the ν3 band of methyl fluoride in solid para-hydrogen. McKellar, A. R. W.; Mizoguchi, Asao; Kanamori, Hideto // Journal of Chemical Physics;9/28/2011, Vol. 135 Issue 12, p124511 

    Spectra of solid para-H2 doped with CH3F at 1.8 K are studied in the ν3 region (∼1040 cm-1) using a quantum cascade laser source. As shown previously, residual ortho-H2 in the sample (∼1000 ppm) gives rise to distinct spectral features due to clusters of the form CH3F-(ortho-H2)N,...

  • The effect of lithography processing on the I–V characteristics of Al–Al2O3–Ag junctions. Kreimer, A.; Frydman, A. // Journal of Applied Physics;6/15/2005, Vol. 97 Issue 12, p124502 

    We present a detailed study of room-temperature current–voltage characteristics of Al–Al2O3–Ag junctions in which the Al electrode was treated by photolithography processing and chemical etching prior to the Al2O3 layer growth. The I–V curves exhibit...

  • Time-of-flight measurements of ejected particles during dry laser cleaning. Grojo, D.; Cros, A.; Delaporte, P.; Sentis, M. // Applied Physics B: Lasers & Optics;Sep2006, Vol. 84 Issue 3, p517 

    We propose an experimental approach which allows the characterization of the dynamics of the ejected particles in dry laser cleaning. Submicron silica particles on silicon substrates were illuminated by single nanosecond laser pulses at fluences which lead to particle removal. Time- and...

  • Mechanism of heat-modification inside a glass after irradiation with high-repetition rate femtosecond laser pulses. Shimizu, Masahiro; Sakakura, Masaaki; Ohnishi, Masatoshi; Shimotsuma, Yasuhiko; Nakaya, Takayuki; Miura, Kiyotaka; Hirao, Kazuyuki // Journal of Applied Physics;Oct2010, Vol. 108 Issue 7, p073533 

    Accumulation of thermal energies by highly repeated irradiation of femtosecond laser pulses inside a glass induces the heat-modification whose volume is much larger than that of the photoexcited region. It has been proposed that the heat-modification occurs in the region in which the temperature...

  • Can stimulated Raman pumping cause large population transfers in isolated molecules? Mukherjee, Nandini; Zare, Richard N. // Journal of Chemical Physics;11/14/2011, Vol. 135 Issue 18, p184202 

    When stimulated Raman pumping (SRP) is applied to a stream of isolated molecules, such as found in a supersonic molecular beam expansion, we show that SRP can neither saturate nor power broaden a molecular transition connecting two metastable levels that is resonant with the energy difference...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics