Is there a "permeability" or "permitivity" quantity given to these solids, in order to calculate the loss at a given frequency? Since the solid's electrical conductivity has no effect on its ability to pass or reflect EM energy in the visible light spectrum, then you would conclude that there are no issues of capacitance and inductance.
Anyone know what the formulas are to calculate this quantity, and what given variables are required to do so? At what frequency does EM radiation stop acting like electric wave propagation and start behaving like Light? This seems like a very interesting topic, and one that many of us EMC engineers (maybe not the good ones, but the rest of us) are in the dark about. (pun intended.) Regards, Randy Flinders EMC Engineer Emulex Network Systems [email protected] (714) 513-8012 ---------- From: [email protected] Sent: Thursday, March 11, 1999 2:02 PM To: "smtp@WILTRON7@Servers[\"Allen Tudor\" <[email protected] Cc: [email protected] Subject: re: Visible Light & EMC Allen, You are right. Transparent solids have much less loss for light waves than opaque. And mirror-like solids reflect most of light waves. B Ma ------------- Original Text From: "Allen Tudor" <[email protected]>, on 3/11/99 1:21 PM: This question sounds goofy, but here goes anyway.... Why doesn't visible light travel through solid objects (plastic, wood, etc)? Unless I've totally missed the boat, visible light is electromagnetic energy beginning at about 100,000GHz. So why doesn't it behave like electromagnetic energy in the radio spectrum? My guess is that it has something to do with the wavelength vs. the thickness of the object. Allen Tudor, Compliance Engineer PairGain Technologies tel: (919)875-3382 2431-153 Spring Forest Rd. fax: (919)876-1817 Raleigh, NC 27615 email: [email protected] --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. 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