Low-cost and low-loss multimode waveguides of photodefinable epoxy

The microwave properties of some of the low cost materials which can be used in high frequency applications with low transmission losses are investigated in this paper. One of the most accurate microwave characterization techniques, Split Post Dielectric Resonator technique (SPDR) is used for the experimental investigation. The dielectric constants of the 3 materials scrutinized at room temperature and at 10K are 3.65, 2.42, 3.61 and 3.58, 2.48, 3.59 respectively. The corresponding loss tangent values are 0.00370, 0.0015, 0.0042 and 0.0025, 0.0009, 0.0025. The high frequency transmission losses are comparable with many of the conventional materials used in low temperature electronics and hence these materials could be implemented in such applications.

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Amorphous Silicon Based Waveguides And Light Modulators For Silicon Low-Cost Photonic Integrated Circuits

MRS Proceedings ◽

10.1557/proc-486-113 ◽

1997 ◽

Vol 486 ◽

Cited By ~ 1

Author(s):

G. Cocorullo ◽

F. G. Della Corte ◽

R. De Rosa ◽

I. Rendina ◽

A. Rubino ◽

...

Keyword(s):

Integrated Circuits ◽

Amorphous Silicon ◽

Low Cost ◽

Switching Frequency ◽

Fabrication Technology ◽

Low Loss ◽

Light Modulators ◽

Microelectronic Technology ◽

Infrared Wavelengths ◽

Silicon Based

AbstractThis paper reports about the fabrication and experimental test of an interferometric light intensity modulator integrated in a low loss (0.7 dB/cm), amorphous silicon based waveguide. It measures approximately 1 mm in length, while its cross section is 30-μm-wide and 3-μm-high. The device, which exploits the strong thermo-optic effect in thin film a-Si for its operation, is designed for application at the infrared wavelengths of 1.3 and 1.55 μm. The measured maximum operating on-off switching frequency of the device is 600 kHz. The very simple fabrication technology involves maximum process temperatures of 230 °C, and is therefore compatible with the standard microelectronic technology. This offers a new opportunity for the integration of optical and electronic functions on the same substrate.

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Simple and Low Cost Fabrication of Thermally Stable Polymeric Multimode Waveguides using a UV-curable Epoxy

Japanese Journal of Applied Physics ◽

10.1143/jjap.42.1277 ◽

2003 ◽

Vol 42 (Part 1, No. 3) ◽

pp. 1277-1279 ◽

Cited By ~ 57

Author(s):

Joon-Sung Kim ◽

Jae-Wook Kang ◽

Jang-Joo Kim

Keyword(s):

Low Cost ◽

Thermally Stable ◽

Uv Curable ◽

Multimode Waveguides

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The Optimization of Extraction of Cordycepin from Fruiting Body of Cordyceps militaris (L.) Link

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.393-395.1024 ◽

2011 ◽

Vol 393-395 ◽

pp. 1024-1028 ◽

Cited By ~ 2

Author(s):

Hong Zhang ◽

Jun Wei Wang ◽

Sheng Zhong Dong ◽

Fang Xu Xu ◽

Sheng Hou Wang

Keyword(s):

Fruiting Body ◽

High Performance ◽

Room Temperature ◽

Low Cost ◽

Cordyceps Militaris ◽

Ultrasonic Extraction ◽

Water Extraction ◽

Synergistic Extraction ◽

Control Group ◽

Low Loss

The optimization of extraction of cordycepin from fruiting body of Cordyceps militaris YCC-01 by water extraction, ethanol extraction, ultrasonic extraction, and synergistic extraction is studied in this paper. The optimal conditions, water extraction at 85°C for 2.5h plus ultrasonic extraction at 600W for 35min, were determined through high performance liquid chromatography (HPLC). The dried fruiting body of cordycepin content was 9.559 mg/g by this synergistic extraction method. The yield was 66.2% higher than the control group 85°C water extraction 2.5h and 11.3% higher than the room temperature ultrasonic extraction 35min. This method has a short extraction time, low cost, low loss of active ingredients and other characteristics with good prospects.

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