units.rst

Units

WrightTools provides its own units system. You can use it directly, if you wish.

>>> import WrightTools as wt
>>> wt.units.converter(2., 'eV', 'nm')
620.0

This same units system enables the units-aware properties throughout WrightTools.

In WrightTools, units are organized into kinds. It is always possible to convert between units of the same kind, and never possible to convert between kinds.

The units system also provides a symbol for each unit, enabling easy plotting.

The following table contains every unit in WrightTools.

name	description	kind	symbol
rad	radian	angle	None
deg	degrees	angle	None
fs	femtoseconds	delay	τ
ps	picoseconds	delay	τ
ns	nanoseconds	delay	τ
mm_delay	mm	delay	τ
nm	nanometers	energy	λ
wn	wavenumbers	energy	ν̄
eV	electronvolts	energy	ℏω
meV	millielectronvolts	energy	E
Hz	hertz	energy	f
THz	terahertz	energy	f
GHz	gigahertz	energy	f
K	kelvin	temperature	T
deg_C	celsius	temperature	T
deg_F	fahrenheit	temperature	T
deg_R	rankine	temperature	T
fluence	uJ per sq. cm	intensity	ℱ
mOD	mOD	optical density	None
OD	OD	optical density	None
nm_p	nanometers	position	None
um	microns	position	None
mm	millimeters	position	None
cm	centimeters	position	None
in	inches	position	None
FWHM	full width half max	pulse width	σ
fs_t	femtoseconds	time	None
ps_t	picoseconds	time	None
ns_t	nanoseconds	time	None
us_t	microseconds	time	None
ms_t	milliseconds	time	None
s_t	seconds	time	None
m_t	minutes	time	None
h_t	hours	time	None
d_t	days	time	None