Time for a visit to shark tank On Mon, Feb 21, 2022, 2:15 PM <dmmoff...@gmail.com> wrote:
> We have a product idea. All we need now is a physicist, an engineering > team, and a billion dollars. > > > -----Original Message----- > From: AF <af-boun...@af.afmug.com> On Behalf Of Mark Radabaugh > Sent: Monday, February 21, 2022 3:01 PM > To: AnimalFarm Microwave Users Group <af@af.afmug.com> > Subject: Re: [AFMUG] can light wavelength be altered passively? > > Well, that does bring to mind another way to do it that some LED and > Florescent lights use - chemical compounds that excite at one wavelength > and emit at another. Various forms of phosphorus compounds are common. > I don’t know that they would be specific enough for what Steve was asking > for but I have seen enough engineering magic in my time to say it’s > probably possible. > > Mark > > > > On Feb 21, 2022, at 10:55 AM, dmmoff...@gmail.com wrote: > > > > Closest thing I can think of is an erbium doped amplifier. A "pump > laser" > > at one wavelength excites erbium molecules buried in the glass, and > > the erbium emits photons at the signal wavelength to juice it up for a > > longer ride down the line. > > > > .....but the changing wavelength isn't the feature, it's the > > amplifying that's the feature. > > > > > > > > -----Original Message----- > > From: AF <af-boun...@af.afmug.com> On Behalf Of Mark Radabaugh > > Sent: Monday, February 21, 2022 7:26 AM > > To: AnimalFarm Microwave Users Group <af@af.afmug.com> > > Subject: Re: [AFMUG] can light wavelength be altered passively? > > > > Nothing that I am aware of. Lots of ways to filter and split, but the > only > > way I know of to change frequency of light involves relative motion > > between the emitter and the receiver. > > > > Mark > > > >> On Feb 21, 2022, at 1:49 AM, Steve Jones <thatoneguyst...@gmail.com> > > wrote: > >> > >> is there such a thing as a filter that could passively alter a light > > wavelength? some magic prism? > >> > >> like 1391 goes into the magic, non powered box gets touched in its no > >> no > > square and comes out 1591? > >> -- > >> AF mailing list > >> AF@af.afmug.com > >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > > > -- > > AF mailing list > > AF@af.afmug.com > > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > > > -- > > AF mailing list > > AF@af.afmug.com > > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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