The detection and measurement of gas concentrations using the characteristic optical
absorption of the gas species is important for both understanding and monitoring a variety of …

In this Letter, a differential integrating sphere-based photoacoustic spectroscopy (PAS) gas
sensor is proposed for the first time to our knowledge. The differential integrating sphere …

The recently introduced Gas in Scattering Media Absorption Spectroscopy (GASMAS)
technique provides novel possibilities for analysis in biophotonics. Free gas in pores or …

The relative contributions of absorption vs scattering phenomena in plasmonic nanoparticles
are pivotal to optimizing light-to-heat conversion efficiency, which is of particular interest in …

The concentration of trace gases in the atmospheric environment is extremely low, but it has
a great impact on the living environment of organisms. Photoacoustic spectroscopy has …

We present a sensor for gas detection utilising an integrating sphere and interband cascade
laser for tunable diode laser absorption spectroscopy (TDLAS). Measurements were made …

Speckle metrology is a powerful tool in the measurement of wavelength and spectra.
Recently, speckle produced by multiple reflections inside an integrating sphere has been …

Because of its high price, extra virgin olive oil is frequently targeted for adulteration with
lower quality oils. This paper presents an innovative optical technique capable of quantifying …

摘要光声光谱技术因其灵敏度高, 可靠性强, 响应速度快等优点, 在气体检测方面得到了广泛的
应用. 积分球气室内壁的高反射率涂层能有效增大光程, 所以常被应用于吸收光谱技术中以提高 …

In this study, an oxygen monitoring system was demonstrated for sensitive oxygen detection.
The system is based on tunable diode laser absorption spectroscopy (TDLAS) and …