Holographic Properties of BR-D96N Film and Its Application in Hologram Aberration Correction

Zheng, Y.; Wang, Yingli; Menke, Neimule; Lei, Ming; Chen, Guofu; Hampp, Norbert

doi:10.1088/0256-307x/20/5/323

Cited by 12 publications

(6 citation statements)

References 9 publications

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“…In the past, researchers have used several methods to investigate the nonlinear properties of the BR films [3][4][5][6][7][8]. The Z-scan measurement is a simple experimental procedure that gives information about the optical nonlinearities of materials.…”

Section: Introductionmentioning

confidence: 99%

Measurements of photoinduced refractive index changes in bacteriorhodopsin films

Banyal

Prasad

2007

Pramana - J Phys

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We report the pump-probe measurements of nonlinear refractive index changes in photochromic bacteriorhodopsin films. The photoinduced absorption is caused by pump beam at 532 nm and the accompanying refractive index changes are studied using a probe beam at 633 nm. The proposed technique is based on a convenient and accurate determination of optical path difference using digital interferometry-based local fringe shift. The results are presented for the wild-type as well as genetically modified D96N variant of the bacteriorhodopsin.

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Section: Introductionmentioning

confidence: 99%

Measurements of photoinduced refractive index changes in bacteriorhodopsin films

Banyal

Prasad

2007

Pramana - J Phys

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“…Methylaluminoxane (MAO, 10% solution in toluene) was purchased from Arbemarle Company. The synthesis of bis(dibenzoylmethane) phenoxyl titanate, (dbm) 2 Ti(OPh) 2 , a β ‐diketonate titanium catalyst, has been reported in ref 14…”

Section: Experimental Partmentioning

confidence: 99%

Three‐Dimensionally Ordered Macroporous Syndiotactic Polystyrene: Preparation and Characterization

Yan

Shen

2005

Macromol. Rapid Commun.

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Summary: Three‐dimensionally ordered macroporous (3DOM) syndiotactic polystyrenes with pore size in the range of 71–286 nm were fabricated by means of silica templates using (dbm)2Ti(OPh)2/MAO catalytic system. The resulting materials were characterized by NMR, SEM, powder X‐ray diffraction, GPC and DSC. The results indicated that the 3DOM syndiotactic polystyrenes were highly syndiotactic, and the pore contraction increased when the average pore diameter decreased. Compared with bulk syndiotactic polystyrenes, 3DOM syndiotactic polystyrene possessed lower molecular weight, narrower molecular weight distribution, and lower crystallinity and melting temperature.

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“…The spatial filtering in bR was performed using a control beam that precisely manipulates spatial frequencies exploiting saturable absorption 10 and photoinduced aniosotropy. 8 As compared to other materials like photorefractive crystals, the bR films have many advantages such as high spatial resolution of over 6000 lines/mm, 11 high photoisomerization efficiency, ease of preparation of thin films of large area, and reversibility of use.…”

Section: Medical Image Processing Using Transient Fourier Holography mentioning

confidence: 99%

Medical image processing using transient Fourier holography in bacteriorhodopsin films

Kothapalli

Yelleswarapu

et al. 2004

Applied Physics Letters

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Real time image processing is demonstrated by recording and reconstructing the transient photoisomerizative grating formed in the bR film using Fourier holography. Desired spatial frequencies including both high and low band in the object beam are reconstructed by controlling the reference beam intensity. The results are in agreement with a theoretical model based on photoisomerization grating. We exploit this technique to process mammograms in real-time for identification of microcalcifications buried in the soft tissue for early detection of breast cancer. A feature of the technique is the ability to transient display of selected spatial frequencies in the reconstructing process which enables the radiologists to study the features of interest.

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Holographic Properties of BR-D96N Film and Its Application in Hologram Aberration Correction

Cited by 12 publications

References 9 publications

Measurements of photoinduced refractive index changes in bacteriorhodopsin films

Measurements of photoinduced refractive index changes in bacteriorhodopsin films

Three‐Dimensionally Ordered Macroporous Syndiotactic Polystyrene: Preparation and Characterization

Medical image processing using transient Fourier holography in bacteriorhodopsin films

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