Re: [time-nuts] atomic/chemical THz sampler (Glen English VK1XX)
Glen, perhaps there is some updated equivalent to the old film technique of running film past a slit, with the shutter open? One of the very early high speed recording methods. Capable of recording one analogue value at very high speed, at least in its time. John On 29/7/19 2:00 am, time-nuts-requ...@lists.febo.com wrote: > -- > Message: 3 > Date: Sun, 28 Jul 2019 15:37:31 +1000 > From: Glen English VK1XX > To: time-nuts@lists.febo.com > Subject: [time-nuts] atomic/chemical THz sampler > Message-ID: <000c3acf-d8d4-ac83-8aa4-8644aa74c...@pacificmedia.com.au> > Content-Type: text/plain; charset=utf-8; format=flowed > > OK research people...since this forum is loaded with bleeding edge > understanding,? Is there such a thing in the lab as a material that can > store, in a 2 level (1 bit) format (or more) , a discrete time > representation of some event ? > > In my simple example (dream), an arrangement of some molecular or some? > quantum storage medium, that can store an event at discrete intervals of > say, 100fs? ? That is, the duration of the storage might be 1nS, storing > the state of something, at 100fs intervals (example ) having a? (for > example) sample storage of 1 samples, and the ability to freeze that > event (in some atomic level memory) for later readout?? once only or > continuously looped ? > > No, I am not proposing this for my period /frequency analyser, I was > just wondering about super high speed digitization and storage of very > fast very short events. > > -glen > > ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] atomic/chemical THz sampler
Electro-optic samplers are about the closest but they typically transform from time to spatial domain and have multibit resolution. The storage isnt atomic but in an image sensor attached to a spectroscometer. http://beamdocs.fnal.gov/AD/DocDB/0025/002555/001/eos1.pdf Bruce > On 28 July 2019 at 17:37 Glen English VK1XX > wrote: > > > OK research people...since this forum is loaded with bleeding edge > understanding, Is there such a thing in the lab as a material that can > store, in a 2 level (1 bit) format (or more) , a discrete time > representation of some event ? > > In my simple example (dream), an arrangement of some molecular or some > quantum storage medium, that can store an event at discrete intervals of > say, 100fs ? That is, the duration of the storage might be 1nS, storing > the state of something, at 100fs intervals (example ) having a (for > example) sample storage of 1 samples, and the ability to freeze that > event (in some atomic level memory) for later readout once only or > continuously looped ? > > No, I am not proposing this for my period /frequency analyser, I was > just wondering about super high speed digitization and storage of very > fast very short events. > > -glen > > > > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] atomic/chemical THz sampler
Kind of the opposite of what you are asking: ultrafast laser spectroscopy is used to study chemical reactions and make measurements of their time scales (often in the time range of several femtoseconds). And precise timing of photons produced is critical to making the measurements. The chemical processes at the femtosecond level seem to not click like clockwork, but instead seem to have exponential decay curves like, say, nuclear half-lives. If you were looking to store long sequences of information in chemicals, the model that comes to mind is DNA. A nice poster on timescales in cell biology: https://www.cell.com/cell/pdf/S0092-8674(16)30208-2.pdf Tim N3QE On Sun, Jul 28, 2019 at 10:04 AM Glen English VK1XX < glenl...@pacificmedia.com.au> wrote: > OK research people...since this forum is loaded with bleeding edge > understanding, Is there such a thing in the lab as a material that can > store, in a 2 level (1 bit) format (or more) , a discrete time > representation of some event ? > > In my simple example (dream), an arrangement of some molecular or some > quantum storage medium, that can store an event at discrete intervals of > say, 100fs ? That is, the duration of the storage might be 1nS, storing > the state of something, at 100fs intervals (example ) having a (for > example) sample storage of 1 samples, and the ability to freeze that > event (in some atomic level memory) for later readout once only or > continuously looped ? > > No, I am not proposing this for my period /frequency analyser, I was > just wondering about super high speed digitization and storage of very > fast very short events. > > -glen > > > > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
[time-nuts] atomic/chemical THz sampler
OK research people...since this forum is loaded with bleeding edge understanding, Is there such a thing in the lab as a material that can store, in a 2 level (1 bit) format (or more) , a discrete time representation of some event ? In my simple example (dream), an arrangement of some molecular or some quantum storage medium, that can store an event at discrete intervals of say, 100fs ? That is, the duration of the storage might be 1nS, storing the state of something, at 100fs intervals (example ) having a (for example) sample storage of 1 samples, and the ability to freeze that event (in some atomic level memory) for later readout once only or continuously looped ? No, I am not proposing this for my period /frequency analyser, I was just wondering about super high speed digitization and storage of very fast very short events. -glen ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
