id	sid	tid	token	lemma	pos
fq977s78r6j	1	1	the	the	DET
fq977s78r6j	1	2	concept	concept	NOUN
fq977s78r6j	1	3	of	of	ADP
fq977s78r6j	1	4	solid	solid	ADJ
fq977s78r6j	1	5	-	-	PUNCT
fq977s78r6j	1	6	state	state	NOUN
fq977s78r6j	1	7	optical	optical	ADJ
fq977s78r6j	1	8	refrigeration	refrigeration	NOUN
fq977s78r6j	1	9	(	(	PUNCT
fq977s78r6j	1	10	laser	laser	NOUN
fq977s78r6j	1	11	cooling	cooling	NOUN
fq977s78r6j	1	12	)	)	PUNCT
fq977s78r6j	1	13	is	be	AUX
fq977s78r6j	1	14	premised	premise	VERB
fq977s78r6j	1	15	on	on	ADP
fq977s78r6j	1	16	removing	remove	VERB
fq977s78r6j	1	17	thermal	thermal	ADJ
fq977s78r6j	1	18	energy	energy	NOUN
fq977s78r6j	1	19	from	from	ADP
fq977s78r6j	1	20	a	a	DET
fq977s78r6j	1	21	material	material	NOUN
fq977s78r6j	1	22	through	through	ADP
fq977s78r6j	1	23	its	its	PRON
fq977s78r6j	1	24	anti	anti	ADJ
fq977s78r6j	1	25	-	-	ADJ
fq977s78r6j	1	26	stokes	stoke	NOUN
fq977s78r6j	1	27	photoluminescence	photoluminescence	NOUN
fq977s78r6j	1	28	(	(	PUNCT
fq977s78r6j	1	29	aspl	aspl	X
fq977s78r6j	1	30	)	)	PUNCT
fq977s78r6j	1	31	.	.	PUNCT
fq977s78r6j	2	1	since	since	SCONJ
fq977s78r6j	2	2	the	the	DET
fq977s78r6j	2	3	first	first	ADJ
fq977s78r6j	2	4	report	report	NOUN
fq977s78r6j	2	5	of	of	ADP
fq977s78r6j	2	6	aspl	aspl	ADV
fq977s78r6j	2	7	-	-	PUNCT
fq977s78r6j	2	8	induced	induce	VERB
fq977s78r6j	2	9	cooling	cooling	NOUN
fq977s78r6j	2	10	in	in	ADP
fq977s78r6j	2	11	1995	1995	NUM
fq977s78r6j	2	12	,	,	PUNCT
fq977s78r6j	2	13	multiple	multiple	ADJ
fq977s78r6j	2	14	experiments	experiment	NOUN
fq977s78r6j	2	15	have	have	AUX
fq977s78r6j	2	16	now	now	ADV
fq977s78r6j	2	17	unambiguously	unambiguously	ADV
fq977s78r6j	2	18	confirmed	confirm	VERB
fq977s78r6j	2	19	solid	solid	ADJ
fq977s78r6j	2	20	state	state	NOUN
fq977s78r6j	2	21	laser	laser	NOUN
fq977s78r6j	2	22	refrigeration	refrigeration	NOUN
fq977s78r6j	2	23	and	and	CCONJ
fq977s78r6j	2	24	cooling	cool	VERB
fq977s78r6j	2	25	to	to	ADP
fq977s78r6j	2	26	cryogenic	cryogenic	ADJ
fq977s78r6j	2	27	temperatures	temperature	NOUN
fq977s78r6j	2	28	in	in	ADP
fq977s78r6j	2	29	rare	rare	ADJ
fq977s78r6j	2	30	-	-	PUNCT
fq977s78r6j	2	31	earth	earth	NOUN
fq977s78r6j	2	32	-	-	PUNCT
fq977s78r6j	2	33	doped	dope	VERB
fq977s78r6j	2	34	glasses	glass	NOUN
fq977s78r6j	2	35	and	and	CCONJ
fq977s78r6j	2	36	crystals	crystal	NOUN
fq977s78r6j	2	37	.	.	PUNCT
fq977s78r6j	3	1	a	a	DET
fq977s78r6j	3	2	record	record	NOUN
fq977s78r6j	3	3	cooling	cool	VERB
fq977s78r6j	3	4	temperature	temperature	NOUN
fq977s78r6j	3	5	of	of	ADP
fq977s78r6j	3	6	91	91	NUM
fq977s78r6j	3	7	k	k	PROPN
fq977s78r6j	3	8	has	have	AUX
fq977s78r6j	3	9	recently	recently	ADV
fq977s78r6j	3	10	been	be	AUX
fq977s78r6j	3	11	achieved	achieve	VERB
fq977s78r6j	3	12	with	with	ADP
fq977s78r6j	3	13	a	a	DET
fq977s78r6j	3	14	yb3	yb3	ADJ
fq977s78r6j	3	15	+	+	ADJ
fq977s78r6j	3	16	-doped	-doped	ADJ
fq977s78r6j	3	17	yttrium	yttrium	NOUN
fq977s78r6j	3	18	lithium	lithium	NOUN
fq977s78r6j	3	19	fluoride	fluoride	NOUN
fq977s78r6j	3	20	(	(	PUNCT
fq977s78r6j	3	21	ylf	ylf	NOUN
fq977s78r6j	3	22	)	)	PUNCT
fq977s78r6j	3	23	crystal.going	crystal.goe	VERB
fq977s78r6j	3	24	to	to	ADP
fq977s78r6j	3	25	lower	low	ADJ
fq977s78r6j	3	26	temperatures	temperature	NOUN
fq977s78r6j	3	27	,	,	PUNCT
fq977s78r6j	3	28	however	however	ADV
fq977s78r6j	3	29	,	,	PUNCT
fq977s78r6j	3	30	requires	require	VERB
fq977s78r6j	3	31	changing	change	VERB
fq977s78r6j	3	32	cooling	cool	VERB
fq977s78r6j	3	33	media	medium	NOUN
fq977s78r6j	3	34	.	.	PUNCT
fq977s78r6j	4	1	this	this	PRON
fq977s78r6j	4	2	stems	stem	VERB
fq977s78r6j	4	3	from	from	ADP
fq977s78r6j	4	4	the	the	DET
fq977s78r6j	4	5	thermal	thermal	ADJ
fq977s78r6j	4	6	depopulation	depopulation	NOUN
fq977s78r6j	4	7	of	of	ADP
fq977s78r6j	4	8	atomic	atomic	ADJ
fq977s78r6j	4	9	levels	level	NOUN
fq977s78r6j	4	10	at	at	ADP
fq977s78r6j	4	11	low	low	ADJ
fq977s78r6j	4	12	temperatures	temperature	NOUN
fq977s78r6j	4	13	,	,	PUNCT
fq977s78r6j	4	14	which	which	PRON
fq977s78r6j	4	15	shuts	shut	VERB
fq977s78r6j	4	16	off	off	ADP
fq977s78r6j	4	17	optical	optical	ADJ
fq977s78r6j	4	18	cooling	cool	VERB
fq977s78r6j	4	19	cycles	cycle	NOUN
fq977s78r6j	4	20	.	.	PUNCT
fq977s78r6j	5	1	numerous	numerous	ADJ
fq977s78r6j	5	2	cooling	cool	VERB
fq977s78r6j	5	3	attempts	attempt	NOUN
fq977s78r6j	5	4	have	have	AUX
fq977s78r6j	5	5	therefore	therefore	ADV
fq977s78r6j	5	6	been	be	AUX
fq977s78r6j	5	7	made	make	VERB
fq977s78r6j	5	8	with	with	ADP
fq977s78r6j	5	9	alternate	alternate	ADJ
fq977s78r6j	5	10	,	,	PUNCT
fq977s78r6j	5	11	condensed	condensed	ADJ
fq977s78r6j	5	12	phase	phase	NOUN
fq977s78r6j	5	13	media	medium	NOUN
fq977s78r6j	5	14	such	such	ADJ
fq977s78r6j	5	15	as	as	ADP
fq977s78r6j	5	16	solutions	solution	NOUN
fq977s78r6j	5	17	of	of	ADP
fq977s78r6j	5	18	rhodamine	rhodamine	NOUN
fq977s78r6j	5	19	101	101	NUM
fq977s78r6j	5	20	.	.	PUNCT
fq977s78r6j	6	1	recent	recent	ADJ
fq977s78r6j	6	2	focus	focus	NOUN
fq977s78r6j	6	3	has	have	AUX
fq977s78r6j	6	4	shifted	shift	VERB
fq977s78r6j	6	5	to	to	ADP
fq977s78r6j	6	6	semiconductors	semiconductor	NOUN
fq977s78r6j	6	7	given	give	VERB
fq977s78r6j	6	8	fermi	fermi	NOUN
fq977s78r6j	6	9	-	-	PUNCT
fq977s78r6j	6	10	dirac	dirac	NOUN
fq977s78r6j	6	11	statistics	statistic	NOUN
fq977s78r6j	6	12	that	that	PRON
fq977s78r6j	6	13	guarantee	guarantee	VERB
fq977s78r6j	6	14	populated	populated	ADJ
fq977s78r6j	6	15	valence	valence	NOUN
fq977s78r6j	6	16	bands	band	NOUN
fq977s78r6j	6	17	at	at	ADP
fq977s78r6j	6	18	very	very	ADV
fq977s78r6j	6	19	low	low	ADJ
fq977s78r6j	6	20	temperature	temperature	NOUN
fq977s78r6j	6	21	.	.	PUNCT
fq977s78r6j	7	1	this	this	PRON
fq977s78r6j	7	2	results	result	NOUN
fq977s78r6j	7	3	in	in	ADP
fq977s78r6j	7	4	minimum	minimum	ADJ
fq977s78r6j	7	5	cooling	cool	VERB
fq977s78r6j	7	6	floors	floor	NOUN
fq977s78r6j	7	7	as	as	ADV
fq977s78r6j	7	8	low	low	ADJ
fq977s78r6j	7	9	as	as	ADP
fq977s78r6j	7	10	10	10	NUM
fq977s78r6j	7	11	k.this	k.this	NOUN
fq977s78r6j	7	12	phd	phd	NOUN
fq977s78r6j	7	13	thesis	thesis	NOUN
fq977s78r6j	7	14	begins	begin	VERB
fq977s78r6j	7	15	by	by	ADP
fq977s78r6j	7	16	presenting	present	VERB
fq977s78r6j	7	17	an	an	DET
fq977s78r6j	7	18	overview	overview	NOUN
fq977s78r6j	7	19	of	of	ADP
fq977s78r6j	7	20	the	the	DET
fq977s78r6j	7	21	theoretical	theoretical	ADJ
fq977s78r6j	7	22	model	model	NOUN
fq977s78r6j	7	23	in	in	ADP
fq977s78r6j	7	24	semiconductor	semiconductor	NOUN
fq977s78r6j	7	25	laser	laser	NOUN
fq977s78r6j	7	26	cooling	cooling	NOUN
fq977s78r6j	7	27	,	,	PUNCT
fq977s78r6j	7	28	which	which	PRON
fq977s78r6j	7	29	highlights	highlight	VERB
fq977s78r6j	7	30	key	key	ADJ
fq977s78r6j	7	31	factors	factor	NOUN
fq977s78r6j	7	32	and	and	CCONJ
fq977s78r6j	7	33	concepts	concept	NOUN
fq977s78r6j	7	34	crucial	crucial	ADJ
fq977s78r6j	7	35	to	to	ADP
fq977s78r6j	7	36	establishing	establish	VERB
fq977s78r6j	7	37	valid	valid	ADJ
fq977s78r6j	7	38	laser	laser	NOUN
fq977s78r6j	7	39	cooling	cool	VERB
fq977s78r6j	7	40	claims	claim	NOUN
fq977s78r6j	7	41	.	.	PUNCT
fq977s78r6j	8	1	the	the	DET
fq977s78r6j	8	2	thesis	thesis	NOUN
fq977s78r6j	8	3	then	then	ADV
fq977s78r6j	8	4	compares	compare	VERB
fq977s78r6j	8	5	three	three	NUM
fq977s78r6j	8	6	different	different	ADJ
fq977s78r6j	8	7	methods	method	NOUN
fq977s78r6j	8	8	of	of	ADP
fq977s78r6j	8	9	all	all	ADV
fq977s78r6j	8	10	-	-	PUNCT
fq977s78r6j	8	11	optical	optical	ADJ
fq977s78r6j	8	12	thermometry	thermometry	NOUN
fq977s78r6j	8	13	:	:	PUNCT
fq977s78r6j	8	14	pump	pump	NOUN
fq977s78r6j	8	15	-	-	PUNCT
fq977s78r6j	8	16	probe	probe	NOUN
fq977s78r6j	8	17	luminescence	luminescence	PROPN
fq977s78r6j	8	18	thermometry	thermometry	PROPN
fq977s78r6j	8	19	(	(	PUNCT
fq977s78r6j	8	20	pplt	pplt	PROPN
fq977s78r6j	8	21	)	)	PUNCT
fq977s78r6j	8	22	,	,	PUNCT
fq977s78r6j	8	23	differential	differential	PROPN
fq977s78r6j	8	24	luminescence	luminescence	PROPN
fq977s78r6j	8	25	thermometry	thermometry	PROPN
fq977s78r6j	8	26	(	(	PUNCT
fq977s78r6j	8	27	dlt	dlt	PROPN
fq977s78r6j	8	28	)	)	PUNCT
fq977s78r6j	8	29	,	,	PUNCT
fq977s78r6j	8	30	and	and	CCONJ
fq977s78r6j	8	31	up	up	ADP
fq977s78r6j	8	32	-	-	PUNCT
fq977s78r6j	8	33	conversion	conversion	NOUN
fq977s78r6j	8	34	emission	emission	NOUN
fq977s78r6j	8	35	thermometry	thermometry	NOUN
fq977s78r6j	8	36	.	.	PUNCT
fq977s78r6j	9	1	additionally	additionally	ADV
fq977s78r6j	9	2	,	,	PUNCT
fq977s78r6j	9	3	the	the	DET
fq977s78r6j	9	4	thesis	thesis	NOUN
fq977s78r6j	9	5	summarizes	summarize	VERB
fq977s78r6j	9	6	the	the	DET
fq977s78r6j	9	7	longstanding	longstanding	ADJ
fq977s78r6j	9	8	debate	debate	NOUN
fq977s78r6j	9	9	in	in	ADP
fq977s78r6j	9	10	the	the	DET
fq977s78r6j	9	11	community	community	NOUN
fq977s78r6j	9	12	regarding	regard	VERB
fq977s78r6j	9	13	whether	whether	SCONJ
fq977s78r6j	9	14	excitation	excitation	NOUN
fq977s78r6j	9	15	energy	energy	NOUN
fq977s78r6j	9	16	dependencies	dependency	NOUN
fq977s78r6j	9	17	exist	exist	VERB
fq977s78r6j	9	18	in	in	ADP
fq977s78r6j	9	19	semiconductor	semiconductor	NOUN
fq977s78r6j	9	20	nanocrystals	nanocrystal	NOUN
fq977s78r6j	9	21	.	.	PUNCT
fq977s78r6j	10	1	finally	finally	ADV
fq977s78r6j	10	2	,	,	PUNCT
fq977s78r6j	10	3	the	the	DET
fq977s78r6j	10	4	thesis	thesis	NOUN
fq977s78r6j	10	5	introduces	introduce	VERB
fq977s78r6j	10	6	a	a	DET
fq977s78r6j	10	7	non	non	ADJ
fq977s78r6j	10	8	-	-	ADJ
fq977s78r6j	10	9	contact	contact	ADJ
fq977s78r6j	10	10	method	method	NOUN
fq977s78r6j	10	11	that	that	PRON
fq977s78r6j	10	12	could	could	AUX
fq977s78r6j	10	13	be	be	AUX
fq977s78r6j	10	14	used	use	VERB
fq977s78r6j	10	15	to	to	PART
fq977s78r6j	10	16	directly	directly	ADV
fq977s78r6j	10	17	detect	detect	VERB
fq977s78r6j	10	18	defects	defect	NOUN
fq977s78r6j	10	19	in	in	ADP
fq977s78r6j	10	20	semiconductor	semiconductor	NOUN
fq977s78r6j	10	21	nanocrystals	nanocrystal	NOUN
fq977s78r6j	10	22	.	.	PUNCT