NV-Diamond Atomic Clock With Optical Spin Readout

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing atomic clocks face limitations due to radioactivity, short shelf life, and the need for radio wave conversion for resonance, which restricts precision and longevity.

Innovation Solution

A quantum nv-diamond atomic clock utilizing a microwave energy source, NV-centered diamond with nitrogen vacancy defects, MRI unit for optical and magnetic resonance determination, and housings to block electromagnetic waves, enabling direct optical measurement of electron pulses without radio wave conversion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional atomic clocks use radioactive materials (cesium, rubidium, hydrogen), then they can achieve time measurement function, but they have short half-life and limited shelf life

Engineering Contradiction:
Improveshelf lifeVSAvoidradioactivity
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the fundamental material parameter from radioactive atoms (cesium, rubidium, hydrogen) to non-radioactive nitrogen-vacancy centers in diamond. This parameter change eliminates radioactivity and extends shelf life while maintaining the time measurement function through quantum spin states instead of atomic transitions.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the traditional atomic transition mechanism (electromagnetic resonance of atoms) with a solid-state quantum system (nitrogen-vacancy center spin states in diamond). This substitution eliminates the need for radioactive materials while preserving the quantum mechanical basis for precise frequency measurement.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If traditional atomic clocks convert resonance into radio waves to energize atoms, then they can measure time, but they require complex conversion processes that limit accuracy

Engineering Contradiction:
Improvetime measurement accuracyVSAvoidconversion mechanism
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the intermediate conversion step (resonance to radio waves) from the measurement process. The nitrogen-vacancy center system allows direct optical detection of quantum states, removing the need for piezoelectric conversion and radio wave generation, thereby simplifying the device and improving measurement precision.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces optical fields as a direct mediator to probe the quantum spin states of nitrogen-vacancy centers, replacing the traditional radio wave intermediary. This allows direct optical measurement of the quantum states without requiring conversion through radio waves, simplifying the measurement chain and improving accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This solution provides higher precision time measurement, eliminates radioactivity and short shelf life, and extends the operational life of atomic clocks beyond prior art limitations.

Implementation Method 1

at least a microwave energy source (1) that is used to deliver the electrode nitrogen atom to a covalent bond

Methodology Applied
Scientific EffectMicrowave radiation: Microwave Radiation

Implementation Method 2

at least an MRI unit (3) which provides magnetic resonance imaging, optical microscopy, optical determination and resonance determination

Methodology Applied
Scientific EffectMagnetic resonance: Resonance

Implementation Method 3

The mechanisms that have been described are nuclear spin and dipole coupling, where the spins can be singularly determined by means of a super resolution optical microscope or a magnetic resonance imaging MRI unit (3)

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Data Source

PatentUS11320791B2Quantum NV-diamond atomic clock
Publication Date: 2022.05.03 TURK TELEKOMUNIKASYON A S
  • US11320791B2 patent drawing
  • US11320791B2 patent drawing

AI summary

The invention is related to a novel atomic clock developed by taking into basis Quantum mechanics and the spin-spin status of the electrodes that have been trapped. The disadvantages such as radioactivity perceived in atomic clocks, half life and shelf life are prevented by means of the invention.