Laser-Sealed Glass Vial for Low-Pressure Quantum Transition Sensing

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing hermetically sealed cavities for quantum transitions detection in electronic devices face challenges in maintaining gas purity and stability over time, especially when using bonded wafers, which can be costly and complex to manufacture.

Innovation Solution

A hermetically sealed glass vial is used to contain a dipolar gas at low pressure, with an electromagnetic antenna coupled for quantum transition frequency detection, employing a laser cutting and sealing process to preserve gas purity and stability, and an electromagnetically translucent window for signal launch and receipt.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If bonded wafers are used to fabricate hermetically sealed cavities, then the cavity can contain dipolar gas for quantum transition detection, but the manufacturing process becomes costly and complex

Engineering Contradiction:

Improvegas purity and stabilityVSAvoidmanufacturing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The device is divided into separate functional components: a hermetically sealed glass vial containing the dipolar gas, an electromagnetically translucent window, and an antenna assembly. This segmentation allows each component to be optimized and manufactured independently, reducing overall manufacturing complexity while maintaining gas purity and stability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

An electromagnetically translucent window is introduced as an intermediary component that enables electromagnetic signal transmission into the sealed vial without requiring direct bonding to access the gas. This mediator allows the vial to remain hermetically sealed while still permitting quantum transition detection.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Volume of moving object

If the vial width is reduced to 1-10 millimeters for compactness, then the device becomes more suitable for electronic device integration, but the walls must be made thinner which may compromise structural integrity

Engineering Contradiction:

Improvevial sizeVSAvoidwall strength

Core Design Contradiction:

Volume of moving objectVSStrength

Solution Approach 1:

The wall thickness is optimized to a specific range (50-250 micrometers) that balances structural integrity with the need for electromagnetic signal transmission. This parameter optimization allows thin-walled construction for compactness while maintaining sufficient strength to contain the gas at the required pressure.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The vial structure combines glass material with optimized wall thickness to achieve both mechanical strength and electromagnetic transparency. The glass material provides structural integrity while the controlled thickness enables signal penetration for quantum transition detection.

Inventive Principle:

Principle #40Composite materials

3Ease of operation

If an electromagnetically translucent window is added for signal access, then quantum transition detection becomes possible, but the manufacturing process becomes more complex

Engineering Contradiction:

Improvesignal launch and receiptVSAvoidmanufacturing ease

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The electromagnetically translucent window is integrated into the vial structure during the sealing process itself, rather than being added as a separate post-processing step. This preliminary integration simplifies manufacturing by combining multiple functions into a single fabrication step.

Inventive Principle:

Principle #10Preliminary action

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

The glass vial configuration provides a cost-effective, scalable, and stable platform for quantum transition frequency detection, maintaining accuracy over time and environmental changes without the need for lasers, offering improved manufacturability and reduced complexity compared to wafer-based systems.

Implementation Method 1

The cavity can contain dipolar molecules at a relatively low pressure that can be chosen to provide a narrow signal absorption frequency peak indicative of the quantum transition molecules as detected at an output of the cavity

Methodology Applied

Scientific EffectAbsorption (EM radiation): Absorption (EM radiation)

Implementation Method 2

An electromagnetic signal can be launched into the cavity through an aperture in the cavity that is electromagnetically translucent or substantially transparent

Methodology Applied

Scientific EffectElectromagnetic wave propagation: Electromagnetic Induction

Data Source

PatentUS11782392B2Hermetic vial for quantum transitions detection in electronic devices applications

Publication Date: 2023.10.10 TEXAS INSTRUMENTS INC

AI summary

A physics cell includes a sealed glass vial that contains a high-purity dipolar gas (e.g., OCS) at a low pressure (e.g., between about 0.01 millibar and 0.2 millibar). The vial can be sealed using a laser cutting process that involves only local heating of the vial that does not denature the bulk of the contained gas. One or more electromagnetically translucent windows or vial-end access points provide access to electromagnetic waves launched or received by one or more electromagnetic antennas at a frequency that is adjusted to match the quantum transition frequency of the gas based on a detected maximum absorption frequency. The glass-vial physics cell can be fabricated at lower cost than physics cells fabricated from bonded wafers. Multiple vials can be joined by a waveguide in an enclosure so that launch and receive antennas can be provided at a single end of the vials.