Effect of monomer functionality on the diffraction efficiency of photopolymer films

Eunkyoung Kim, Hyojin Lee, Hyowon Lee, Nam Kim, Changwon Shin, Sangkeun Gil

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

The effect of monomer functionality on the diffraction efficiency of the photopolymer containing multi- and monofunctional monomers was investigated. A mixture of tri-, di-, and mono functional monomers were dispersed in a solution of polysulfone dissolved in organic solvent containing a photo initiator. The monomer contents were varied by changing the ratio between them. The average functionality (Fav = Σ ΦiFi) was determined, where Φ, is the mol fraction of the monomer with functionality Fi. The holographic recording was performed and diffraction efficiency (η) of each film was determined by using a 532 nm laser. In the photopolymer film having an optimized composition, η was increased within 20 sec and reached a maximum of >90 % with an exposure power of 5 mW laser. The rise of η (response time), maximum η), and stability of η value over prolonged recording were dependent on the monomer structure and composition and the average functionality. The result could be ascribed to the reactivity and functionality of monomers under interference light, to generate refractive index contrast.

Original languageEnglish
Article number59390I
Pages (from-to)1-6
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5939
DOIs
Publication statusPublished - 2005 Dec 1
EventOrganic Holographic Materials and Applications III - San Diego, CA, United States
Duration: 2005 Aug 22005 Aug 4

Fingerprint

Photopolymer
Photopolymers
Diffraction Efficiency
photopolymers
Diffraction efficiency
monomers
Monomers
Laser
Reactivity
diffraction
Refractive Index
Response Time
Interference
Dependent
recording
Light interference
Polysulfones
Lasers
initiators
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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Effect of monomer functionality on the diffraction efficiency of photopolymer films. / Kim, Eunkyoung; Lee, Hyojin; Lee, Hyowon; Kim, Nam; Shin, Changwon; Gil, Sangkeun.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5939, 59390I, 01.12.2005, p. 1-6.

Research output: Contribution to journalConference article

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AU - Lee, Hyojin

AU - Lee, Hyowon

AU - Kim, Nam

AU - Shin, Changwon

AU - Gil, Sangkeun

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AB - The effect of monomer functionality on the diffraction efficiency of the photopolymer containing multi- and monofunctional monomers was investigated. A mixture of tri-, di-, and mono functional monomers were dispersed in a solution of polysulfone dissolved in organic solvent containing a photo initiator. The monomer contents were varied by changing the ratio between them. The average functionality (Fav = Σ ΦiFi) was determined, where Φ, is the mol fraction of the monomer with functionality Fi. The holographic recording was performed and diffraction efficiency (η) of each film was determined by using a 532 nm laser. In the photopolymer film having an optimized composition, η was increased within 20 sec and reached a maximum of >90 % with an exposure power of 5 mW laser. The rise of η (response time), maximum η), and stability of η value over prolonged recording were dependent on the monomer structure and composition and the average functionality. The result could be ascribed to the reactivity and functionality of monomers under interference light, to generate refractive index contrast.

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