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Phase Contrast Projection Display Using Photopolymer 원문보기

Journal of the Optical Society of Korea, v.12 no.4, 2008년, pp.319 - 325  

Piao, Mei-Lan (School of Electrical & Computer Engineering, Chungbuk National University) ,  Kim, Nam (School of Electrical & Computer Engineering, Chungbuk National University) ,  Park, Jae-Hyeung (School of Electrical & Computer Engineering, Chungbuk National University)

Abstract ▼ AI-Helper 아이콘AI-Helper

We propose a phase contrast filter using photopolymer, for the phase contrast projection display. The photopolymer has high photosensitivity such that its optically induced refractive index change has a linear dependency on the illuminating light intensity. We implemented a phase contrast projection...

주제어

#Photopolymer   #Phase contrast   #Projector   #High light efficiency  

AI 본문요약
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제안 방법

  • zero frequency part, of the photopolymer, the refractive index profile around the zero frequency area may not be as abrupt as the pre-manufactured optical disk with central pit [6, 7], but can have smoothed boundary if the illuminating beam intensity profile is not abrupt. In order to verify its effect on the resultant output intensity image, we performed a simulation for the square shaped refractive index profile and Gaussian shaped refractive index profile. The full-width-at-half-maximum(FWHM) of the Gaussian profile is set to the width of the square profile.
  • However, it was just a proof-of-concept of the possibility of using the photopolymer as a phase contrast filter, and not for the specific application for the projection display. In this paper, we applied the phase contrast technique using photopolymer as a filter to phase contrast projection display with detailed analysis. We investigated the effect of the photopolymer illumination condition on the quality of the displayed intensity image.
  • The beam intensity is adjusted in two steps properly. The experimental result shows the successful conversion of the phase image into the intensity image by the photopolymer, hence confirming the feasibility of the proposed method. We also demonstrated that the illuminating beam intensity and the exposure time in the fabrication process of the phase contrast filter using photopolymer are critical for the optimal performance.
  • We investigated the effect of the photopolymer illumination condition on the quality of the displayed intensity image. The experiments were carried out for different beam intensities, exposure times, and illumination energies. From the analysis of the output intensity images, we demonstrated that the illuminating beam intensity and the exposure time in the fabrication process of the phase contrast filter using the photopolymer are the critical parameters for the optimal performance.

대상 데이터

  • The operating wavelength is 532 nm. The photopolymer used in the experiment is Dupont photopolymer HFR-150-38. Our experiment was performed in two steps.
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참고문헌 (16)

  1. J. W. Goodman, Introduction to Fourier Optics, 2nd ed. (McGraw-Hill, San Francisco, Calif., 1996), pp. 220-222 

  2. F. Zernike, “How I discovered phase contrast,” Science, vol. 121, no. 3141, pp. 345-349, 1955 

    상세보기 crossref

  3. J. Gluckstad, “Adaptive array illumination and structured light generated by spatial zero-order self-phase modulation in a Kerr medium,” Opt. Comm., vol. 120, pp. 194-203, 1995 

    상세보기 crossref

  4. P. C. Mogensen and J. Gluckstad, “Phase-only optical encryption,” Opt. Lett., vol. 25, pp. 566-568, 2000 

    상세보기 crossref

  5. V. R. Daria, P. J. Rodrigo, S. Sinzinger, and J. Gluckstad, “Phase only optical decryption in a planar-integrated micro-optics system,” Opt. Eng., vol. 43, pp. 2223-2227, 2004 

    상세보기 crossref

  6. J. Gluckstad, D. Palima, P. J. Rodrigo, and C. A. Alonzo, “Laser Projection using generalized phase contrast,” Opt. Lett., vol. 32, no. 22, pp. 3281-3283, 2007 

    상세보기 crossref

  7. C. A. Alonzo, P. J. Rodrigo, and J. Gluckstad, “Photonefficient grey-level image projection by the generalized phase contrast method,” New J. Phys., vol. 9, pp. 132-146, 2007 

    상세보기 crossref

  8. J. Liu, J. Xu, G. Zhang, and S. Liu, “Phase contrast using photorefractive LiNbO3: Fe crystals,” Appl. Opt., vol. 34, no. 22, pp. 4972-4975, 1995 

    상세보기 crossref

  9. K. Sendhil, C. Vijayan, and M. P. Kothiyal, “Spatial phase filtering with a porphyrin derivative as phase filter in an optical image processor,” Opt. Comm., vol. 251, pp. 292-298, 2005 

    상세보기 crossref

  10. M. L. Piao, N. Kim, J. H. Park, C. W. Shin, and S. G. Gil, “Realization of phase contrast filter using photopolymer,” In The 15th Conference on Optoelectronics and Optical Communications, Proc. COOC, vol. 15, no 1, pp. 435-436, 2008 

  11. D. Palima and V. R. Daria, “Holographic projection of arbitrary light patterns with a suppressed zero-order beam,” Appl. Opt., vol. 46, no. 20, pp. 4197？4201, 2007 

    상세보기 crossref

  12. D. Palima and J. Gluckstad, “Comparison of generalized phase contrast and computer generated holography for laser image projection,” Opt. Exp., vol. 16, no. 8, pp. 5338-5349, 2008 

    상세보기 crossref

  13. V. Moreau, Y. Renotte, and Y. Lion, “Characterization of DuPont photopolymer: determination of kinetic parameters in a diffusion model,” Appl. Opt., vol. 41, no. 17, pp. 3427-3435, 2002 

    상세보기 crossref

  14. Q. Huang and P. R. Ashley, “Holographic Bragg grating input？output couplers for polymer waveguides at an 850-nm wavelength, ” Appl. Opt., vol. 36, no. 6, pp. 1198-1203, 1997 

    상세보기 crossref

  15. N. Kim, E. S. Hwang, and C. W. Shin, “Analysis of optical properties with Photopolymers for holographic application,” J. Opt. Soc. Korea, vol. 10, no. 1, pp. 1-10, 2006 

    원문보기 상세보기 crossref

  16. H. S. Jeong, N. Kim, J. S. Yun, T. H. Park, and C. W. Shin, “Optical characteristic and image recording of reflection type Photopolymer in transmission structure,” J. Opt. Soc. Korea, vol. 18, no. 1, pp. 8-13, 2007 

    원문보기 상세보기 crossref

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