We are pleased to announce the PriSpecTemp Final Stakeholder Workshop, bringing together international researchers and metrologists to discuss developments in primary spectroscopic thermometry and temperature traceability following the kelvin redefinition.

📅 Date: 21 October 2026
💻 Format: Online (Hosted by PTB)
🔗 Register & Programme: Register as a stakeholder for the meeting link. 

📋 Programme Overview
Welcome & Opening
• Gang Li & Rainer Stosch (PTB) — Welcome & PriSpecTemp Overview

🎤 Plenary Lecture:
• Graham Machin (NPL) — SI Kelvin Redefinition & Impact on Temperature Traceability

🔬 Session 1: Line-Intensity Ratio & Ro-Vibrational Gas Thermometry
• Daniel Lisak (UMK) — Line-ratio thermometry via cavity mode-dispersion spectroscopy
• Yan Tan (USTC) — Sub-mK Line-Ratio Thermometry using Dual-Wavelength CMDS
• Can Gözönünde (TÜBİTAK UME) — Ro-Vibrational Gas Thermometry with FTIR
• Yu-Rong Xu (UMK) — Frequency comb-based gas thermometry
• Kianoosh Hadidi (Justervesenet) — Laser-induced heating considerations

• Yukiko Shimizu (AIST) —  Rotational-State Distribution Thermometry (RDT) Using Dual-Comb Spectroscopy  

💡 Session 2: Doppler-Broadening & Refractive-Index Gas Thermometry
• Shuiming Hu (USTC) — Doppler-Broadening Thermometry via CMDS of CO
• Livio Gianfrani (Univ. Campania) — Doppler-Broadening Thermometry
• Tom Rubin (PTB) — Gas-independent FP refractometry approaches
• Carmen Garcia Izquierdo (CEM) — Fabry-Perot Interferometer gas thermometer

❄️🔥 Session 3: Low & High Temperature Spectroscopic Thermometry
• Aidan Arnold (Univ. Strathclyde) — Primary thermometry via alkali-metal-vapour Doppler broadening
• Xiaofeng Lu (NIM) — Spectroscopic radiation thermometry at NIM
• Piotr Wcisło (UMK) — Deep cryogenic thermometry via cavity-enhanced H₂ spectroscopy

🌍 Session 4: Atmospheric Applications & Parameters
• Iouli E. Gordon (HITRAN) — HITRAN2024 spectral parameters
• Lukas Petera (ODU) — CO 2-0 overtone band broadened by H₂
• Adam J. Fleisher (NIST) — Isotope ratio spectroscopy
• Keeyoon Sung (NASA JPL) — FT-IR O₂ collision-induced absorption

🗣️ Closing Panel Discussion: Future directions in spectroscopic thermometry