43-A: Tamm--Boggild Disposable Photonic Sensor Chip

Part of Project 43 — Labrador: Exploring commercial and scientific applications of synthetic labradorescence

Overview

Proposes a disposable photonic sensor chip combining Optical Tamm States with a biomimetic low-$\Delta n$ block copolymer multilayer inspired by the Boggild miscibility gap in labradorite feldspar. Aims to deliver SPR-class refractive index sensitivity at a fraction of the cost of current instruments (GBP 100K--400K).

Status

Item	Status
Stage	Scientific / Conceptual
Transfer matrix modelling	Not yet performed
Prototype	None
Seeking	Collaborators in thin-film optics, BCP chemistry, biosensor design

Key Idea

A 30 nm plasmonic metal film atop a self-assembled BCP multilayer stack (50--100+ bilayer pairs, $\Delta n \approx 0.008$--$0.1$) may generate a Tamm plasmon resonance within the photonic stopband. Whether this resonance is spectrally resolvable and surface-sensitive under these low-$\Delta n$ conditions is the central open question. The target is a low-cost, single-use chip that could democratise access to high-sensitivity refractive index measurement.

Target Applications (Conditional)

• Trace gas detection
• Food spoilage sensing
• Medical breath diagnostics
• Temperature sensing

Document

📄 43-A_Tamm_Boggild_Sensor_Formatted.docx — Full collaboration whitepaper :bookmark_tabs: 43-A_Tamm_Boggild_Sensor_Formatted.pdf — PDF export

Author

Aaron Garcia · Independent Researcher · aaron@garcia.ltd

Licence

This work is released under the MIT Licence.