scholarly journals Light Source for 21st Century: New Application by a Lamp (by Excimer Lamp)

2005 ◽  
Vol 81 (12) ◽  
pp. 1012-1015 ◽  
Author(s):  
Nobuyuki HISHINUMA
Keyword(s):  
Light Source ◽  
21St Century ◽  
Excimer Lamp

Etching of Polymers by Photo-Material Processing using an Excimer Lamp

1996 ◽  
Vol 451 ◽  
Author(s):  
Noritaka Takezoe ◽  
Atsushi Yokotani ◽  
Kou Kurosawa ◽  
Wataru Sasaki ◽  
Kunio Yoshida ◽  
...  
Keyword(s):  
Material Processing ◽  
Ultraviolet Radiation ◽  
Light Source ◽  
Vacuum Ultraviolet ◽  
Organic Materials ◽  
Etching Process ◽  
Excimer Lasers ◽  
Single Crystalline ◽  
Excimer Lamp ◽  
Vacuum Ultraviolet Radiation

ABSTRACTAn excimer lamp is a new light source which can produce shorter wavelength of vacuum ultraviolet radiation than conventional ArF excimer lasers. We have tried to use the excimer lamp for photo-etching of polymers such as polymethylmetacrylie and polyimidic resins. We have found that the etching process was including the chemical and the quantumn processes. We also applied this technique for etching of some single crystalline organic materials which were very important to opt-electronic applications.

A Method for Setting the Clearance Angle

1972 ◽  
Vol 30 ◽  
pp. 388-389
Author(s):  
Michael T. Bucek ◽  
Howard J. Arnott
Keyword(s):  
Experimental Evidence ◽  
Light Source ◽  
Black Spot ◽  
Critical Factor ◽  
Clearance Angle ◽  
Crude Approximation ◽  
Ultrathin Sections

It is believed by the authors, with supporting experimental evidence, that as little as 0.5°, or less, knife clearance angle may be a critical factor in obtaining optimum quality ultrathin sections. The degree increments located on the knife holder provides the investigator with only a crude approximation of the angle at which the holder is set. With the increments displayed on the holder one cannot set the clearance angle precisely and reproducibly. The ability to routinely set this angle precisely and without difficulty would obviously be of great assistance to the operator. A device has been contrived to aid the investigator in precisely setting the clearance angle. This device is relatively simple and is easily constructed. It consists of a light source and an optically flat, front surfaced mirror with a minute black spot in the center. The mirror is affixed to the knife by placing it permanently on top of the knife holder.

A confocal laser scanning microscope for fluorescence and reflection at video rates

1989 ◽  
Vol 47 ◽  
pp. 134-135
Author(s):  
P.M. Houpt ◽  
A. Draaijer
Keyword(s):  
Light Source ◽  
Laser Scanning ◽  
Focal Point ◽  
Confocal Laser Scanning Microscope ◽  
Confocal Laser ◽  
Point Light Source ◽  
Volume Of Interest ◽  
Ion Laser ◽  
Point Light ◽  
Point Detector

In confocal microscopy, the object is scanned by the coinciding focal points (confocal) of a point light source and a point detector both focused on a certain plane in the object. Only light coming from the focal point is detected and, even more important, out-of-focus light is rejected.This makes it possible to slice up optically the ‘volume of interest’ in the object by moving it axially while scanning the focused point light source (X-Y) laterally. The successive confocal sections can be stored in a computer and used to reconstruct the object in a 3D image display.The instrument described is able to scan the object laterally with an Ar ion laser (488 nm) at video rates. The image of one confocal section of an object can be displayed within 40 milliseconds (1000 х 1000 pixels). The time to record the total information within the ‘volume of interest’ normally depends on the number of slices needed to cover it, but rarely exceeds a few seconds.

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