Photocontrol of the refractive index of poly(methyl methacrylate) with a nitrone additive

2004 ◽  
Vol 93 (6) ◽  
pp. 2517-2520 ◽  
Author(s):  
Kenta Tanaka ◽  
Koichi Shima ◽  
Harunobu Kondoh ◽  
Tetsutaro Igarashi ◽  
Tadamitsu Sakurai
Keyword(s):  
Refractive Index ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate

Fabrication of Refractive Index Profiles in Poly (Methyl Methacrylate) using Ultraviolet Rays Irradiation

2002 ◽  
Vol 41 (Part 1, No. 2A) ◽  
pp. 876-880 ◽  
Author(s):  
Takeshi Kada ◽  
Takeyoshi Hiramatsu ◽  
Kenji Ogino ◽  
Chuang Xin Liang ◽  
Hideaki Machida ◽  
...  
Keyword(s):  
Refractive Index ◽  
Methyl Methacrylate ◽  
Ultraviolet Rays ◽  
Poly Methyl Methacrylate

scholarly journals Effects of aryl substituents in N-acetyl-α-dehydroarylalanine naphthyl ester additive on the photoinduced refractive index change of poly(methyl methacrylate) film

2010 ◽  
Vol 42 (8) ◽  
pp. 670-675 ◽  
Author(s):  
Haruki Nakajima ◽  
Hiroshi Komatsu ◽  
Hitoe Iikura ◽  
Tetsutaro Igarashi ◽  
Tadamitsu Sakurai
Keyword(s):  
Refractive Index ◽  
Methyl Methacrylate ◽  
Refractive Index Change ◽  
Index Change ◽  
Poly Methyl Methacrylate

Three-Dimensional Optical Bit Memory in Sm(DBM)3Phen-Doped and Un-Doped Poly(methyl methacrylate)

2011 ◽  
Vol 284-286 ◽  
pp. 2251-2254
Author(s):  
Zhao Gang Nie ◽  
Xin Zhong Li ◽  
Yu Ping Tai ◽  
Ki Soo Lim ◽  
Myeongkyu Lee
Keyword(s):  
Refractive Index ◽  
Methyl Methacrylate ◽  
Signal To Noise Ratio ◽  
Three Dimensional ◽  
Pulsed Laser ◽  
High Signal ◽  
Signal To Noise ◽  
Fluorescent Signal ◽  
Poly Methyl Methacrylate ◽  
Noise Ratio

The feasibility of three-dimensional optical bit memory is demonstrated by using the change of fluorescence and refractive index in Sm(DBM)3Phen-doped and un-doped Poly(methyl methacrylate). After a femtosecond pulsed laser irradiation, a refractive-index bit and a fluorescent bit can be formed at the same position inside the bulk sample. Multilayer patterns recorded by tightly focusing the pulsed laser beam were read out by a reflection-type fluorescent confocal microscope, which can detect the reflection signal and also the fluorescent signal of the stored bits. The signal-to-noise ratio via the two retrieval modes was compared as a function of recording depth. The stored bits were retrieved with a high signal-to-noise ratio in the absence of any crosstalk and the detection of the fluorescent signal enables retrieval of the stored bits with a higher S/N ratio.

scholarly journals Wavelength Dependent Haze of Transparent Glass-Particle Filled Poly(Methyl Methacrylate) Composites

ISRN Optics ◽  
2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Wolfgang Wildner ◽  
Dietmar Drummer
Keyword(s):  
Refractive Index ◽  
Methyl Methacrylate ◽  
Volume Fraction ◽  
Particle Volume Fraction ◽  
Glass Particle ◽  
Light Transmittance ◽  
Base Line ◽  
Particle Volume ◽  
Poly Methyl Methacrylate ◽  
Refractive Index Difference

Glass particles as filler were incorporated in a poly(methyl methacrylate) matrix. The refractive indexes of both materials match at a wavelength of about 400 nm. The effect of particle volume fraction on the light transmittance and light scattering (haze) in dependence of the refractive index difference was studied. The curve shape of the haze in dependence of the wavelength is comparable to that of the refractive index difference, but the base line of the haze increases with the filling grade. This indicates that there are other scattering or absorbing mechanisms, like defects in the filler binding.

Refractive index measurements of poly(methyl methacrylate) (PMMA) from 04–16  μm

2015 ◽  
Vol 54 (31) ◽  
pp. F139 ◽  
Author(s):  
G. Beadie ◽  
Michael Brindza ◽  
Richard A. Flynn ◽  
A. Rosenberg ◽  
James S. Shirk
Keyword(s):  
Refractive Index ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate
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