Excimer laser (248nm)

Energy measurements:    Scientech Instruments make excellent direct energy
meters, widely used in research nad industry for excimer applications (works
on the thermopile principle!), accurate to 5%
                                        "Power Wizard" energy meter (I can't
remember who makes them) - these
are really very useful little devices!!


Beam detection and spatial profiling:   BPX 65 photodiode (quartz window or
windowless + filters (fused silica) ) - VERY SENSITIVE
                                        Startek Instruments beam profiler
(allows energy and beam profile
measurements to be made (expensive and not easy to calibrate)
                                        Spiricon beam profiler (similar in
functionality to above) - more user
friendly and expensive.


I presume that you are simply trying to "see" a particular spectral region
of the mercury lamp. If so, then a BPX-65 (or equivalent) photodiode, in
conjuction with the appropriate filtering will do the trick. This photodiode
can be made very sensitive in a simple circuit, but through the use of phase
sensitive detection (lock-in amp.) the sensitivity can be increased
dramatically, with noise reduction.

Regards


**************************************
*       Karl H. Cazzini (Ph.D)  *
*       Snr. R&D Engineer       *
*       Conifer Group & Assoc.  *
*       116 Cochituate Road     *
*       Framingham MA 01701     *
*       USA                     *
*                               *
*       Tel(W): (508) 620 8845  *
*       Fax(W): (508) 620 8839  *
**************************************


-----Original Message-----
From:   [email protected] [mailto:[email protected]] On Behalf Of Vanessa
Sent:   Thursday, November 25, 1999 5:20 AM
To:     [email protected]
Subject:        UV sensor

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hy,i'm searching UV sensor for two different souce:
an excimer laser at 248nm
a mercury lamp at 350 nm
can you help me to find them?
--
Dr.Vanessa la Cecilia
Centro Integrazione Microsistemi
Parco Scientifico e Tecnologico d'Abruzzo
Via Antica Arischia 1
67100 L'AQUILA
e-mail: [email protected]
tel: 08623475341
fax: 08623475210


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