Capacitive coupling compensation for direct current electrodes in ion traps
AssigneeInfineon Technologies Austria AG
InventorsJens Repp, Yves Colombe, Wolfgang Furtner, Michael Sieberer
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Abstract
An ion trap system and method of using an ion trap system, the system including a substrate, a radio frequency (RF) source configured to provide an RF signal, an RF electrode disposed in the substrate and connected to the RF source, a direct current (DC) source configured to provide a DC signal, a DC electrode disposed in the substrate and connected to the DC source, wherein the DC electrode is separate from the RF electrode, and a coupling compensation system configured to provide a compensating RF signal associated with the RF signal.
Claims21
An ion trap system, comprising:
- a substrate;
- a radio frequency (RF) source configured to provide an RF signal;
- an RF electrode disposed in or on the substrate and connected to the RF source;
- a direct current (DC) source configured to provide a DC signal;
- a DC electrode disposed in or on the substrate and connected to the DC source, wherein the DC electrode is separate from the RF electrode;
- and
- a coupling compensation system configured to provide, to a target electrode separate from, and different than, the RF electrode, a compensating RF signal associated with the RF signal, wherein the compensating RF signal is associated with a capacitive coupling induced by an RF field between the RF electrode and the DC electrode.
A system, comprising:
- a radio frequency (RF) electrode configured to provide an RF field in response to a received RF signal, wherein the RF field is configured to confine an ion;
- a direct current (DC) source configured to provide a DC signal, wherein the DC signal is configured to perform at least one of controlling or moving the ion;
- a coupling compensation system configured to provide a compensating RF signal associated with the RF signal;
- and
- a DC electrode connected to the coupling compensation system and connected to the DC source, wherein the DC electrode is separate from the RF electrode, wherein the DC electrode is configured to provide a DC field according to the compensating RF signal and further according to the DC signal, and wherein the DC field is compensated, according to the compensating RF signal, for a capacitive coupling between the RF electrode and the DC electrode induced by the RF field.
A method, comprising:
- applying a radio frequency (RF) field to an RF electrode to contain an ion in an ion trap system;
- determining a target direct current (DC) electrode of the ion trap system;
- determining a compensating RF signal associated with the RF signal;
- generating the compensating RF signal;
- applying the compensating RF signal to the target DC electrode wherein the compensating RF signal results in a DC field that is compensated for capacitive coupling between the RF electrode and the target DC electrode;
- and
- performing, using the compensating RF signal, at least one of controlling or moving an ion.
Dependencies are inferred from the claim text.