Fluorescense and Raman pressure calculation by Innokenty Kantor
Ruby fluorescence pressure calculator
Conditions:
hydrostatic
non-hydrostatic
Reference ruby (nm)
at T=
(K)
Measured ruby (nm)
at T=
(K)
Pressure (GPa)
Pressure dependence of ruby shift is from
Mao H.K., Xu J., and Bell P.M. (1986) J. Geophys. Res. 91, 4673
Temperature correction is from
Rekhi S., Dubrovinsky L.S., and Saxena S.K. (1999) High Temp. - High Pres. 31, 299
Sm:YAG pressure scale
Reference Sm:YAG line 1 (nm)
Measured Sm:YAG line 1 (nm)
Pressure (GPa)
Calibration is from:
Hess N.J. and Schiferl D., J. Appl. Phys. 71, 2082 (1992).
Note: this calibration is valid without temperature correction at least up to 800 K.
Diamond anvil Raman pressure scale
Reference diamond Raman peak (cm
-1
)
Measured position (cm
-1
)
Pressure (GPa)
Calibration is from:
Akahama Y. and Kawamura H., J. Appl. Phys. 100, 043516 (2006).
Note: Raman signal should be measured at the center of culet. This scale is not valid to estimate pressure gradients.
Temperature correction is not known.
The "measured position" is the minimum of the Raman signal derivative (see image below).
Diamond Raman pressure scale
Ambient P diamond Raman peak (cm
-1
)
Measured position (cm
-1
)
Pressure (GPa)
Calibration is from:
Dubrovinskaia N. et al., Appl. Phys. Lett. 97, 251903 (2010).
Note: It is
not
a Raman signal from an anvil, it is a peak from diamond inside the sample chamber.
Original page is located
here
