Steve McDaniel
May11-04, 05:10 AM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>In "Fundamentals of Physics" by Halliday\nand Resnick 1974 edition [my old physics textbook from college] page\n710 states "The act of light emission by a single atom [which I assumed to be a\nphoton] takes, in a typical case, about 10^-8 seconds and the emitted\nlight is properly described as a wavetrain rather than as a wave. For\nemission times such as these the wavetrains are a few meters long."\n\n"Interference effects from ordinary light sources may be produced\n....[The text then proceeds to describe a single slit follow by a\ndouble slit] The diffracted beams [from the double slit] thus\nrepresent the same population of wavetrains and are coherent with\nrespect to each other."\n\nIs the above text refering to a photon as a wavetrain? I had assumed\nthat a wavetrain is a concatenation of photons (such as through\nstimulated emission or antenna excitation) that are locally coherent\nbut may drift as more photons are concatenated resulting in\nincoherence in the same wavetrain. Is that view correct?\n\nHow does one split a wavetrain (a concatenated photon stream?) into\ntwo paths such as the double slits and provide cloned wavetrains to\nboth paths? How does splitting or cloning effect the photons (if\nthere is such a thing) involved in the wavetrains?\n\nAre the streams of photons split in two? Do multiple quanta of\nphotons occupy the same space (i.e. the variable n in plancks equation\nE=nhv). Is a wavetrain then actually a train of concatenated\noverlapping photon sets? Or does n describe the harmonic number or\nenergy level of an oscillating self supporting electromagetic field\ni.e. a photon that moves at the speed of light? Can I subtract quanta\nfrom the photon and essentially clone the photon at lower energy\nlevels?\n\nIs each photon or quanta thereof directed to one slit or the other\nwith a certain probability according to spatial orientation?\n\nIs there really a quanta (i.e. the variable n in plancks equation\nE=nhv) involved with photons or is that simply an atomic effect and\nall bets are off once the photon is emitted? Is there really such a\nthing as photons? See for example THE PHOTON FACT OR FICTION? By BERT\nSCHREIBER.\n\nLast of all. How in the world can the emission of light take so long\nin an atom (several meters worth of light as suggest in the above\nreference) and how can the photons or wavetrains be so much larger\nthat the atoms from which they are emitted or the wavelengths they\ncorrespond to? What is so strange about that is that the small energy\ndrops would seem to take longer to occur/emit than the larger energy\ndrops.\n\nI seek clarification not confusion so please respond accordingly.\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>In "Fundamentals of Physics" by Halliday
and Resnick 1974 edition [my old physics textbook from college] page
710 states "The act of light emission by a single atom [which I assumed to be a
photon] takes, in a typical case, about 10^-8 seconds and the emitted
light is properly described as a wavetrain rather than as a wave. For
emission times such as these the wavetrains are a few meters long."
"Interference effects from ordinary light sources may be produced
....[The text then proceeds to describe a single slit follow by a
double slit] The diffracted beams [from the double slit] thus
represent the same population of wavetrains and are coherent with
respect to each other."
Is the above text refering to a photon as a wavetrain? I had assumed
that a wavetrain is a concatenation of photons (such as through
stimulated emission or antenna excitation) that are locally coherent
but may drift as more photons are concatenated resulting in
incoherence in the same wavetrain. Is that view correct?
How does one split a wavetrain (a concatenated photon stream?) into
two paths such as the double slits and provide cloned wavetrains to
both paths? How does splitting or cloning effect the photons (if
there is such a thing) involved in the wavetrains?
Are the streams of photons split in two? Do multiple quanta of
photons occupy the same space (i.e. the variable n in plancks equation
E=nhv). Is a wavetrain then actually a train of concatenated
overlapping photon sets? Or does n describe the harmonic number or
energy level of an oscillating self supporting electromagetic field
i.e. a photon that moves at the speed of light? Can I subtract quanta
from the photon and essentially clone the photon at lower energy
levels?
Is each photon or quanta thereof directed to one slit or the other
with a certain probability according to spatial orientation?
Is there really a quanta (i.e. the variable n in plancks equation
E=nhv) involved with photons or is that simply an atomic effect and
all bets are off once the photon is emitted? Is there really such a
thing as photons? See for example THE PHOTON FACT OR FICTION? By BERT
SCHREIBER.
Last of all. How in the world can the emission of light take so long
in an atom (several meters worth of light as suggest in the above
reference) and how can the photons or wavetrains be so much larger
that the atoms from which they are emitted or the wavelengths they
correspond to? What is so strange about that is that the small energy
drops would seem to take longer to occur/emit than the larger energy
drops.
I seek clarification not confusion so please respond accordingly.
and Resnick 1974 edition [my old physics textbook from college] page
710 states "The act of light emission by a single atom [which I assumed to be a
photon] takes, in a typical case, about 10^-8 seconds and the emitted
light is properly described as a wavetrain rather than as a wave. For
emission times such as these the wavetrains are a few meters long."
"Interference effects from ordinary light sources may be produced
....[The text then proceeds to describe a single slit follow by a
double slit] The diffracted beams [from the double slit] thus
represent the same population of wavetrains and are coherent with
respect to each other."
Is the above text refering to a photon as a wavetrain? I had assumed
that a wavetrain is a concatenation of photons (such as through
stimulated emission or antenna excitation) that are locally coherent
but may drift as more photons are concatenated resulting in
incoherence in the same wavetrain. Is that view correct?
How does one split a wavetrain (a concatenated photon stream?) into
two paths such as the double slits and provide cloned wavetrains to
both paths? How does splitting or cloning effect the photons (if
there is such a thing) involved in the wavetrains?
Are the streams of photons split in two? Do multiple quanta of
photons occupy the same space (i.e. the variable n in plancks equation
E=nhv). Is a wavetrain then actually a train of concatenated
overlapping photon sets? Or does n describe the harmonic number or
energy level of an oscillating self supporting electromagetic field
i.e. a photon that moves at the speed of light? Can I subtract quanta
from the photon and essentially clone the photon at lower energy
levels?
Is each photon or quanta thereof directed to one slit or the other
with a certain probability according to spatial orientation?
Is there really a quanta (i.e. the variable n in plancks equation
E=nhv) involved with photons or is that simply an atomic effect and
all bets are off once the photon is emitted? Is there really such a
thing as photons? See for example THE PHOTON FACT OR FICTION? By BERT
SCHREIBER.
Last of all. How in the world can the emission of light take so long
in an atom (several meters worth of light as suggest in the above
reference) and how can the photons or wavetrains be so much larger
that the atoms from which they are emitted or the wavelengths they
correspond to? What is so strange about that is that the small energy
drops would seem to take longer to occur/emit than the larger energy
drops.
I seek clarification not confusion so please respond accordingly.