Automatic design of optical thin-film systems—merit function and numerical optimization method

Tang, Jinlong; Zheng, Q.

doi:10.1364/josa.72.001522

Cited by 33 publications

(5 citation statements)

References 5 publications

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“…The hydroxylamine reacted with any photolyzed rhodopsin produced as a result of the flashes, to hydrolyze the retinal-lysine Schiff base linkage and produce the apoprotein (opsin) plus retinal oxime (absorption wavelength, 365 nm). The optical parameters of the proteolipid membrane adsorbed on the silver film were obtained by fitting a theoretical curve to the experimental SPR curve, using a nonlinear least squares technique (Liddel, 1981;Tang & Zheng, 1982;Zhang et al, 1987). The standard deviation of such fits varied between 0.010 and 0.025.…”

Section: Methodsmentioning

confidence: 99%

Conformational Changes in Rhodopsin Probed by Surface Plasmon Resonance Spectroscopy

Salamon¹,

Wang²,

Brown³

et al. 1994

Biochemistry

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Surface plasmon resonance (SPR) spectroscopy has been used to follow incorporation and light-induced conformational changes in bovine rhodopsin reconstituted into an egg phosphatidylcholine bilayer deposited on a thin silver film. The magnitude of the SPR spectral changes caused by light varies with pH in a manner paralleling that in flash photolysis experiments, which monitor formation of metarhodopsin II. Irradiation produces an increase of approximately 4 A in the average thickness of the proteolipid layer, consistent with exposure of recognition sites for the G protein. The results demonstrate that the SPR technology described herein may be used to monitor conformational events in membrane-associated receptors such as rhodopsin.

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Section: Methodsmentioning

confidence: 99%

Conformational Changes in Rhodopsin Probed by Surface Plasmon Resonance Spectroscopy

Salamon¹,

Wang²,

Brown³

et al. 1994

Biochemistry

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“…The quantityR α can be understood as a merit function respect to the unit ideal reflectance. In principle, more sophisticated merit functions are at hand [71][72][73] In what follows, we investigate the optimal thicknesses giving maximumR α . In all our computations the two thicknesses are varied independently from 0.02 μm to 0.30 μm.…”

Section: Optical Responsementioning

confidence: 99%

Omnidirectional reflection from generalized Fibonacci quasicrystals

et al. 2013

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Abstract:We determine the optimal thicknesses for which omnidirectional reflection from generalized Fibonacci quasicrystals occurs. By capitalizing on the idea of wavelength-and angle-averaged reflectance, we assess in a consistent way the performance of the different systems. Our results indicate that some of these aperiodic arrangements can largely overperform the conventional photonic crystals as omnidirectional reflection is concerned. 143-215 (1996). 6. B. A. van Tiggelen, "Transverse diffusion of light in Faraday-active media," Phys. Rev. Lett. 75, 422-424 (1995). 7. W. Steurer and D. Sutter-Widmer, "Photonic and phononic quasicrystals," J. Phys. D 40, R229-R247 (2007). 8. A. Poddubny and E. Ivchenko, "Photonic quasicrystalline and aperiodic structures," Physica E 42, 1871-1895 (2010). 9. L. Dal Negro and S. V. Boriskina, "Deterministic aperiodic nanostructures for photonics and plasmonics applications," Laser Photon. Rev. 6, 178-218 (2012). 10. P. J. Steinhardt and S. Ostlund, The Physics of Quasicrystals (World Scientific, 1987). 11. M. Senechal, Quasicrystals and Geometry (Cambridge University, 1995). 12. C. Janot, Quasicrystals: A Primer (Oxford University, 2012). 13. Z. V. Vardeny, A. Nahata, and A. Agrawal, "Optics of photonic quasicrystals," Nat. Photonics 7, 177-187 (2013). 14. E. Maciá, "The role of aperiodic order in science and technology," Rep. Prog. Phys. 69, 397-441 (2006 1768-1770 (1985). 17. M. Kohmoto, L. P. Kadanoff, and C. Tang, "Localization problem in one dimension: Mapping and escape," Phys.Rev. Lett. 50, 1870-1872 (1983). 18. M. Kohmoto, B. Sutherland, and K. Iguchi, "Localization in optics: Quasiperiodic media," Phys. Rev. Lett. 58, 2436-2438 (1987). 19. N.-H. Liu, "Propagation of light waves in Thue-Morse dielectric multilayers," Phys. Rev. B 55, 3543-3547 (1997). 20. S. Tamura and F. Nori, "Transmission and frequency spectra of acoustic phonons in Thue-Morse superlattices,"Phys. Rev. B 40, 9790-9801 (1989 1947-1952 (1998). 24. E. Cojocaru, "Forbidden gaps in finite periodic and quasi-periodic Cantor-like dielectric multilayers at normal incidence," Appl. one-dimensional magnonic quasicrystals," J.

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“…The latter technique was first implemented by Kretschmann (Kretschmann, 1971;Haltom et al, 1979) and is based on the principle that a unique set of optical parameters can be evaluated from the surface plasmon reflectance minimum, its depth, and its half-width. The original procedure has been further refined by the application of computer-based optimization methods, which allow a systematic search for a global minimum in the fitting error (Liddell, 1981;Tang and Zheng, 1982;Zhang et al, 1987).…”

Section: Rotatingmentioning

confidence: 99%

Surface plasmon resonance spectroscopy studies of membrane proteins: transducin binding and activation by rhodopsin monitored in thin membrane films

Salamon¹,

Wang²,

Soulages³

et al. 1996

Biophysical Journal

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Surface plasmon resonance (SPR) spectroscopy can provide useful information regarding average structural properties of membrane films supported on planar solid substrates. Here we have used SPR spectroscopy for the first time to monitor the binding and activation of G-protein (transducin or Gt) by bovine rhodopsin incorporated into an egg phosphatidylcholine bilayer deposited on a silver film. Rhodopsin incorporation into the membrane, performed by dilution of a detergent solution of the protein, proceeds in a saturable manner. Before photolysis, the SPR data show that Gt binds tightly (Keq approximately equal to 60 nM) and with positive cooperativity to rhodopsin in the lipid layer to form a closely packed film. A simple multilayer model yields a calculated average thickness of about 57 A, in good agreement with the structure of Gt. The data also demonstrate that Gt binding saturates at a Gt/rhodopsin ratio of approximately 0.6. Moreover, upon visible light irradiation, characteristic changes occur in the SPR spectrum, which can be modeled by a 6 A increase in the average thickness of the lipid/protein film caused by formation of metarhodopsin II (MII). Upon subsequent addition of GTP, further SPR spectral changes are induced. These are interpreted as resulting from dissociation of the alpha-subunit of Gt, formation of new MII-Gt complexes, and possible conformational changes of Gt as a consequence of complex formation. The above results clearly demonstrate the ability of SPR spectroscopy to monitor interactions among the proteins associated with signal transduction in membrane-bound systems.

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Automatic design of optical thin-film systems—merit function and numerical optimization method

Cited by 33 publications

References 5 publications

Conformational Changes in Rhodopsin Probed by Surface Plasmon Resonance Spectroscopy

Conformational Changes in Rhodopsin Probed by Surface Plasmon Resonance Spectroscopy

Omnidirectional reflection from generalized Fibonacci quasicrystals

Surface plasmon resonance spectroscopy studies of membrane proteins: transducin binding and activation by rhodopsin monitored in thin membrane films

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