Carrier-Envelope Phase Logic Gate for 100 THz Processing
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Solution Overview
Problem
Conventional electronic logic gates are limited by the speed of voltage and current propagation, restricting algorithm execution speed to around 10 GHz, necessitating a faster alternative.
Innovation Solution
A logic gate device utilizing light pulses with encoded carrier-envelope phases to generate current components within a probe structure, allowing information processing at frequencies above 100 THz by exploiting ultrafast strong-field manipulation of charge carriers, including virtual and real charge carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional electronic logic gates are used, then the device structure is simple and easy to manufacture, but the processing speed is limited to around 10 GHz due to voltage and current propagation dynamics
Solution Approach 1:
The patent replaces the conventional electronic voltage/current-based logic gate system with an optoelectronic system that uses light pulse carrier-envelope phases to encode logic states. This substitution of the fundamental information carrier (from electrical to optical domain) enables processing speeds above 100 THz, overcoming the propagation dynamics limit of electronic systems while maintaining a manageable device structure through the use of a probe structure with interface contacts.
Solution Approach 2:
The invention changes the encoding parameter from voltage levels to carrier-envelope phase of light pulses. By modulating the carrier-envelope phase of optical pulses, the system encodes logic states in a parameter that can be manipulated at optical frequencies, thereby achieving processing speeds an order of magnitude faster than conventional electronic logic gates.
2Speed
If light pulses with carrier-envelope phase encoding are used, then processing speed increases to above 100 THz, but the device structure and operation become more complex
Solution Approach 1:
The patent introduces a probe structure as an intermediary component that receives optically excited charge carriers from the interaction regions and converts the optical information into measurable electrical current components. This intermediary structure simplifies the operation by providing a straightforward interface between the optical input (light pulses with carrier-envelope phase encoding) and the electrical output (current components), making the system easier to operate despite the advanced physics involved.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables logic operations at frequencies significantly higher than conventional electronic devices, facilitating simultaneous information conversion and gate operation with reduced energy consumption and enhanced processing speed.
Implementation Method 1
The probe structure is arranged to be irradiated by the first light pulse in a first interaction region to generate a first current component within the probe structure that depends on the first carrier-envelope phase
Data Source
AI summary
A logic gate device comprising a probe structure having an interface contact, a first logic input for receiving a first light pulse having a first carrier-envelope phase that encodes an input state of the first logic input and a second logic input for receiving a second light pulse having a second carrier-envelope phase that encodes an input state of the second logic input. The probe structure is arranged to be irradiated by the first light pulse to generate a first current component within the probe structure that depends on the first carrier-envelope phase and to be irradiated by the second light pulse to generate a second current component within the probe structure that depends on the second carrier-envelope phase. The interface contact is arranged to output a sum current that comprises the first and second current component, wherein the sum current encodes a logic output state of a logic output.